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Zayo Group Interview Questions

Zayo Group Interview Guides

Let’s say that your company is running a standard control and variant AB test on a feature to increase conversion rates on the landing page. The PM checks the results and finds a .04 p-value.

How would you assess the validity of the result?

Experiment Validity

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

What is a key disadvantage of the F-test when compared to multiple t-tests?

What is a key disadvantage of the F-test when compared to multiple t-tests?

Hundreds of Hypotheses

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

In an A/B test, how can you check if assignment to the various buckets was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

Random Bucketing

Zayo Group Salaries by Position

Company Description Zayo provides mission-critical bandwidth to the world's most impactful companies, fueling the innovations that are transforming our society. Zayo's 141,000-mile network in North America and Europe includes extensive metro connectivity to thousands of buildings and data centers. Zayo's communications infrastructure solutions include dark fiber, private data networks, wavelengths, Ethernet, and dedicated Internet access. Zayo serves wireless and wireline carriers, media, tech, content, finance, healthcare and other large enterprises. Zayo Group Holdings, Inc. provides communications infrastructure solutions, including fiber and bandwidth connectivity, colocation and cloud infrastructure to the world's leading businesses. Customers include wireless and wireline carriers, media and content companies, cloud providers, finance and professional services and other large enterprises. Do you dream of IP addresses and want to build tools for the networks that power the future? Are you passionate about automating repetitive tasks for users and delighting them with easy buttons? If so, then we want you on our team! We're looking for a talented Senior Software Engineer to join our growing Network Automation team. In this role, you'll be a key player in building, scaling, and automating the next generation of our network tooling infrastructure. Responsibilities: <ul> <li>Design, build, and maintain innovative tools and solutions to meet evolving business needs. This could be something as simple as developing a Mustache email template library for streamlined responses, or as complex as ML tools for automated troubleshooting </li><li>Leverage open source automation tools and scripting languages in commercial tools (e.g., Python, Ansible, ServiceNow, Salesforce, etc) to streamline NOC information gathering, internal communication, and communication with customers </li><li>Contribute to solving complex technical and process problems, such as mass customer communication, automating responses to trouble tickets, and injecting enrichment information into trouble tickets </li><li>Refactor and consolidate existing tools to be a cohesive suite of tools that improve ease of use and reduce swivel-chairing to get the job done </li><li>Collaborate with cross-functional teams (DevOps, Security, SRE) to ensure security and optimal application performance </li><li>Own new features through the project lifecycle, working collaboratively with a team of software developers to ensure timely delivery of high-quality software solutions </li><li>Stay up-to-date on emerging network technologies and best practices, becoming the beacon for best practices and efficient processes through the organization </li></ul>Qualifications: <ul> <li>Bachelor's degree in Computer Science, Networking, or a related field (or equivalent experience) </li><li>Minimum of seven (7) years of experience with network automation tools and scripting languages (Python, Ansible, Terraform) </li><li>Experience working with various databases such as Postgres, MySQL, MongoDB, and Oracle </li><li>Understanding of network protocols (TCP/IP, BGP, OSPF, etc.) and routing/switching technologies </li><li>Experience in both building and integrating with RESTful APIs </li><li>Experience with async processing and message bus communications (RabbitMQ, Kafka) </li><li>Experience creating and executing automated software testing </li><li>Strong abilities on the Linux command line, working with various flavors of Linux and Docker/Kubernetes </li><li>Strong understanding of applied statistics and the ability to code systems that identify outlier behavior in large systems. </li><li>Previous experience delivering, maintaining and promoting a production software product </li><li>Excellent communication, collaboration skills, and experience using a variety of remote collaboration tools including Jira, Confluence, Google Suite, Zoom, etc </li><li>Experience using Git for code management, review and deployment </li><li>A passion for tackling complex problems and combining technical and process solutions </li></ul>Bonus Points if you have: <ul> <li>Experience working with various vendor APIs (or netconf) including Nokia, Juniper, Fujitsu, Infinera, Cisco, and Ciena. </li><li>Experience with various network orchestration platform such as Ciena Blue Planet, Cisco NSO, or others. </li><li>Experience with monitoring platforms such as SevOne, Assure1, and Nagios. </li><li>Experience with Perl. </li><li>Certifications such as CCNA, JNCIP, or other networking certifications. </li></ul>Base Salary Range: $95,800 - $136,900 USD/annually, commensurate with experience. Benefits, Rewards & Wellness <ul> <li>Excellent Health, Dental & Vision Insurance </li><li>Retirement 401(k) Savings Plan </li><li>Fitness membership discounts </li><li>Generous paid time off policy including paid parental leave </li></ul> Zayo provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, provincial or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

<h3>Job Description</h3>Zayo is hiring a Data Analyst with 3 - 5 years of experience. Based in Mountain Home, TX, with in-office ways of working.<h3>Responsibilities</h3><ul><li>As a member of the Zayo Business Insights and Analytics team, you will work collaboratively to provide data-driven insights and strategic recommendations to drive business growth and profitability.</li><li>You will be responsible for collecting, analyzing, and interpreting large datasets to identify trends, patterns, and opportunities for the commercial organization.</li><li>Collect and analyze data from various sources to generate insights and identify trends.</li><li>Develop data models and visualizations to effectively communicate insights to stakeholders.</li><li>Conduct research and perform ad-hoc analysis to support business decisions.</li><li>Collaborate with cross-functional teams to identify business opportunities and develop strategies to capitalize on them.</li><li>Develop and implement tools and processes to improve data quality and efficiency.</li><li>Present findings and recommendations to senior leaders and stakeholders.</li><li>Stay up-to-date with industry trends and best practices in analytics and data visualization.</li><li>Understand the Zayo data architecture.</li></ul><h3>Qualifications</h3><ul><li>Bachelor's or Master's degree in a related field such as Business Administration, Statistics, Mathematics, Computer Science, or Engineering.</li><li>Strong analytical skills and experience working with large datasets.</li><li>Experience manipulating data from CRM tools (Salesforce preferred).</li><li>Proficient in data analysis tools such as SQL, Python, R, or Excel.</li><li>Experience in data visualization and reporting tools such as Tableau or Power BI.</li><li>Strong communication skills and ability to effectively present complex data insights to both technical and non-technical audiences.</li><li>Strong problem-solving skills and ability to work collaboratively in a team environment.</li><li>Knowledge of business operations and ability to identify opportunities for improvement.</li><li>Experience in project management and ability to manage multiple projects simultaneously.</li></ul>If you meet the qualifications and are passionate about using data to drive business growth and profitability, we encourage you to apply for this exciting opportunity to join a world-class business insights and analytics team.<h3>Company Information</h3>Zayo is the leading global communications infrastructure provider, delivering a range of solutions, including fiber & transport, packet, and managed edge services. Zayo owns and operates a Tier 1 IP backbone spanning 134,000 miles across North America and Europe. By providing this mission-critical bandwidth to its category-leading customers across the wireless, hyperscale, media, tech, and finance industries, Zayo is fueling the innovations that are transforming society. For more information, visit zayo.com.
#J-18808-Ljbffr

Company Description Zayo provides mission-critical bandwidth to the world's most impactful companies, fueling the innovations that are transforming our society. Zayo's 141,000-mile network in North America and Europe includes extensive metro connectivity to thousands of buildings and data centers. Zayo's communications infrastructure solutions include dark fiber, private data networks, wavelengths, Ethernet, and dedicated Internet access. Zayo serves wireless and wireline carriers, media, tech, content, finance, healthcare and other large enterprises. Zayo is seeking a highly skilled and experienced Senior Backend Software Engineer with expertise in Node.js, PostgreSQL, and AWS. As a key member of our development team, the Senior Backend Software Engineer will play a critical role in designing, implementing, and maintaining robust backend solutions that power our applications. The ideal candidate is a proactive problem solver with a strong foundation in backend development and a deep understanding of how different technologies interact. A typical day in the life of a senior software engineer may include the following activities: Assisting in the design and definition of technical specifications of a new software feature with the product team. Writing core platform code for a new feature and unit tests for functionality. Refactoring and improving existing code for performance and simplicity. For example, breaking a large function into smaller, more maintainable, and easily tested logical units. Researching additional ideas to improve the product/platform overall and sharing them with the team. Interacting with customers and/or sales on a software bug, quickly resolving it, and coordinating across the team to push a fix. Collaborating with frontend engineers and discussing quirks in network protocols and network interconnection translating to rapid updates and code improvements. Collaborating with internal teams to surface data to users from other applications. Reviewing merge requests from other developers and providing thoughtful feedback where appropriate. Taking ownership of issues through the release process and partnering with QA to resolve any bugs found in testing, ensuring timely code deployments. Responsibilities: Backend Development: Lead the development of scalable and high-performance backend solutions using Node.js and other technologies as needed. Salesforce Integration: Design and implement seamless integration solutions with Salesforce and ServiceNow, ensuring data consistency and system reliability. Database Management: Utilize PostgreSQL for efficient database design, optimization, and maintenance. AWS Services: Leverage AWS services to build and deploy scalable and reliable backend infrastructure. API Development: Implement new and maintain existing routes for our customer-facing API. Architecture and Design: Collaborate with cross-functional teams to architect and design robust, scalable, and maintainable backend systems. Code Quality and Performance: Ensure code quality through best practices, code reviews, and performance optimization. Documentation: Create and maintain comprehensive technical documentation for backend systems and integration processes. Problem Solving: Troubleshoot and resolve complex technical issues, ensuring the stability of backend systems. Collaboration: Work closely with customers, frontend developers, QA engineers, and other stakeholders to deliver high-quality software solutions. Qualifications: Degree in Computer Science, a related field or equivalent work experience. Minimum of ten (10) years of experience working in production engineering teams. In-depth knowledge of software architecture, design patterns, and best practices. Knowledge of event-based architectures and microservices. Familiarity with secure development practices, including OWASP Top 20, code-scanning tools, and peer review. Proven experience as a Senior Backend Software Engineer with a focus on Node.js. REST API Development, Design, and Testing. Strong expertise in Salesforce integration, including REST and SOAP APIs. Solid experience with PostgreSQL database design, optimization, and maintenance. Proven experience with AWS services for backend infrastructure. Excellent problem-solving skills and attention to detail. Effective communication and collaboration skills. Experience with CI/CD pipelines and DevOps practices. Ability to mentor and guide junior developers. Very comfortable using Git in a team environment (i.e. pull-requests, branch management, rebasing). Experience working in an environment leveraging asynchronous communication collaboration tools like Slack, Zoom, Jira, etc. Fearless in venturing boldly into uncharted territories and developing code where there are no previous libraries to draw from. Preferred Experience: AWS Experience with Lambda, S3, API Gateway, SQS, etc. Familiarity with client-side caching in Redis. Use of event-driven tools such as Kafka. REST API platforms such as Postman. PostgreSQL or other SQL experience. Base Salary Range: $95,800 - $136,900 USD/annually, commensurate with experience. LI-NP1 Benefits, Rewards & Wellness Excellent Health, Dental & Vision Insurance Retirement 401(k) Savings Plan Fitness membership discounts Generous paid time off policy including paid parental leave Zayo provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, provincial or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

Company Description Zayo provides mission-critical bandwidth to the world's most impactful companies, fueling the innovations that are transforming our society. Zayo's 141,000-mile network in North America and Europe includes extensive metro connectivity to thousands of buildings and data centers. Zayo's communications infrastructure solutions include dark fiber, private data networks, wavelengths, Ethernet, and dedicated Internet access. Zayo serves wireless and wireline carriers, media, tech, content, finance, healthcare and other large enterprises. Zayo is seeking a highly skilled and experienced Senior Backend Software Engineer with expertise in Node.js, PostgreSQL, and AWS. As a key member of our development team, the Senior Backend Software Engineer will play a critical role in designing, implementing, and maintaining robust backend solutions that power our applications. The ideal candidate is a proactive problem solver with a strong foundation in backend development and a deep understanding of how different technologies interact. A typical day in the life of a senior software engineer may include the following activities: Assisting in the design and definition of technical specifications of a new software feature with the product team. Writing core platform code for a new feature and unit tests for functionality. Refactoring and improving existing code for performance and simplicity. For example, breaking a large function into smaller, more maintainable, and easily tested logical units. Researching additional ideas to improve the product/platform overall and sharing them with the team. Interacting with customers and/or sales on a software bug, quickly resolving it, and coordinating across the team to push a fix. Collaborating with frontend engineers and discussing quirks in network protocols and network interconnection translating to rapid updates and code improvements. Collaborating with internal teams to surface data to users from other applications. Reviewing merge requests from other developers and providing thoughtful feedback where appropriate. Taking ownership of issues through the release process and partnering with QA to resolve any bugs found in testing, ensuring timely code deployments. Responsibilities: Backend Development: Lead the development of scalable and high-performance backend solutions using Node.js and other technologies as needed. Salesforce Integration: Design and implement seamless integration solutions with Salesforce and ServiceNow, ensuring data consistency and system reliability. Database Management: Utilize PostgreSQL for efficient database design, optimization, and maintenance. AWS Services: Leverage AWS services to build and deploy scalable and reliable backend infrastructure. API Development: Implement new and maintain existing routes for our customer-facing API. Architecture and Design: Collaborate with cross-functional teams to architect and design robust, scalable, and maintainable backend systems. Code Quality and Performance: Ensure code quality through best practices, code reviews, and performance optimization. Documentation: Create and maintain comprehensive technical documentation for backend systems and integration processes. Problem Solving: Troubleshoot and resolve complex technical issues, ensuring the stability of backend systems. Collaboration: Work closely with customers, frontend developers, QA engineers, and other stakeholders to deliver high-quality software solutions. Qualifications: Degree in Computer Science, a related field or equivalent work experience. Minimum of ten (10) years of experience working in production engineering teams. In-depth knowledge of software architecture, design patterns, and best practices. Knowledge of event-based architectures and microservices. Familiarity with secure development practices, including OWASP Top 20, code-scanning tools, and peer review. Proven experience as a Senior Backend Software Engineer with a focus on Node.js. REST API Development, Design, and Testing. Strong expertise in Salesforce integration, including REST and SOAP APIs. Solid experience with PostgreSQL database design, optimization, and maintenance. Proven experience with AWS services for backend infrastructure. Excellent problem-solving skills and attention to detail. Effective communication and collaboration skills. Experience with CI/CD pipelines and DevOps practices. Ability to mentor and guide junior developers. Very comfortable using Git in a team environment (i.e. pull-requests, branch management, rebasing). Experience working in an environment leveraging asynchronous communication collaboration tools like Slack, Zoom, Jira, etc. Fearless in venturing boldly into uncharted territories and developing code where there are no previous libraries to draw from. Preferred Experience: AWS Experience with Lambda, S3, API Gateway, SQS, etc. Familiarity with client-side caching in Redis. Use of event-driven tools such as Kafka. REST API platforms such as Postman. PostgreSQL or other SQL experience. Base Salary Range: $95,800 - $136,900 USD/annually, commensurate with experience. LI-NP1 Benefits, Rewards & Wellness Excellent Health, Dental & Vision Insurance Retirement 401(k) Savings Plan Fitness membership discounts Generous paid time off policy including paid parental leave Zayo provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, provincial or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

Company DescriptionZayo provides mission-critical bandwidth to the world's most impactful companies, fueling the innovations that are transforming our society. Zayo's 141,000-mile network in North America and Europe includes extensive metro connectivity to thousands of buildings and data centers. Zayo's communications infrastructure solutions include dark fiber, private data networks, wavelengths, Ethernet, and dedicated Internet access. Zayo serves wireless and wireline carriers, media, tech, content, finance, healthcare, and other large enterprises.Zayo is seeking a highly skilled and experienced Senior Backend Software Engineer with expertise in Node.js, PostgreSQL, and AWS. As a key member of our development team, the Senior Backend Software Engineer will play a critical role in designing, implementing, and maintaining robust backend solutions that power our applications. The ideal candidate is a proactive problem solver with a strong foundation in backend development and a deep understanding of how different technologies interact.A typical day in the life of a senior software engineer may include the following activities:<ul><li>Assisting in the design and definition of technical specifications of a new software feature with the product team.</li><li>Writing core platform code for a new feature and unit tests for functionality.</li><li>Refactoring and improving existing code for performance and simplicity.</li><li>Researching additional ideas to improve the product/platform overall and sharing them with the team.</li><li>Interacting with customers and/or sales on a software bug, quickly resolving it, and coordinating across the team to push a fix.</li><li>Collaborating with frontend engineers and discussing quirks in network protocols and network interconnection translating to rapid updates and code improvements.</li><li>Collaborating with internal teams to surface data to users from other applications.</li><li>Reviewing merge requests from other developers and providing thoughtful feedback where appropriate.</li><li>Taking ownership of issues through the release process and partnering with QA to resolve any bugs found in testing, ensuring timely code deployments.</li></ul>Responsibilities:<ul><li>Backend Development: Lead the development of scalable and high-performance backend solutions using Node.js and other technologies as needed.</li><li>Salesforce Integration: Design and implement seamless integration solutions with Salesforce and ServiceNow, ensuring data consistency and system reliability.</li><li>Database Management: Utilize PostgreSQL for efficient database design, optimization, and maintenance.</li><li>AWS Services: Leverage AWS services to build and deploy scalable and reliable backend infrastructure.</li><li>API Development: Implement new and maintain existing routes for our customer-facing API.</li><li>Architecture and Design: Collaborate with cross-functional teams to architect and design robust, scalable, and maintainable backend systems.</li><li>Code Quality and Performance: Ensure code quality through best practices, code reviews, and performance optimization.</li><li>Documentation: Create and maintain comprehensive technical documentation for backend systems and integration processes.</li><li>Problem Solving: Troubleshoot and resolve complex technical issues, ensuring the stability of backend systems.</li><li>Collaboration: Work closely with customers, frontend developers, QA engineers, and other stakeholders to deliver high-quality software solutions.</li></ul>Qualifications:<ul><li>Degree in Computer Science, a related field, or equivalent work experience.</li><li>Minimum of ten (10) years of experience working in production engineering teams.</li><li>In-depth knowledge of software architecture, design patterns, and best practices.</li><li>Knowledge of event-based architectures and microservices.</li><li>Familiarity with secure development practices, including OWASP Top 20, code-scanning tools, and peer review.</li><li>Proven experience as a Senior Backend Software Engineer with a focus on Node.js.</li><li>REST API Development, Design, and Testing.</li><li>Strong expertise in Salesforce integration, including REST and SOAP APIs.</li><li>Solid experience with PostgreSQL database design, optimization, and maintenance.</li><li>Proven experience with AWS services for backend infrastructure.</li><li>Excellent problem-solving skills and attention to detail.</li><li>Effective communication and collaboration skills.</li><li>Experience with CI/CD pipelines and DevOps practices.</li><li>Ability to mentor and guide junior developers.</li><li>Very comfortable using Git in a team environment.</li><li>Experience working in an environment leveraging asynchronous communication collaboration tools.</li><li>Fearless in venturing boldly into uncharted territories and developing code where there are no previous libraries to draw from.</li></ul>Preferred Experience:<ul><li>AWS Experience with Lambda, S3, API Gateway, SQS, etc.</li><li>Familiarity with client-side caching in Redis.</li><li>Use of event-driven tools such as Kafka.</li><li>REST API platforms such as Postman.</li><li>PostgreSQL or other SQL experience.</li></ul>Base Salary Range: $95,800 - $136,900 USD/annually, commensurate with experience.Benefits, Rewards & Wellness<ul><li>Excellent Health, Dental & Vision Insurance</li><li>Retirement 401(k) Savings Plan</li><li>Fitness membership discounts</li><li>Generous paid time off policy including paid parental leave</li></ul>Zayo provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, provincial or local laws.
#J-18808-Ljbffr

Company Description Zayo provides mission-critical bandwidth to the world's most impactful companies, fueling the innovations that are transforming our society. Zayo's 141,000-mile network in North America and Europe includes extensive metro connectivity to thousands of buildings and data centers. Zayo's communications infrastructure solutions include dark fiber, private data networks, wavelengths, Ethernet, and dedicated Internet access. Zayo serves wireless and wireline carriers, media, tech, content, finance, healthcare and other large enterprises. Zayo is seeking a Software Engineer to develop, enhance and maintain critical APIs and automation tools for our customers and internal users. As a Fullstack Software Engineer, you will be responsible for developing new applications, enhancing existing features, and developing API's that are seamless and enjoyable for our customers to use while maintaining scalable and performant code. Responsibilities: <ul> <li>Develop new frontend and backend applications for customers. </li><li>Maintain current frontend applications, ensuring continued operation and functionality. </li><li>Help establish good development patterns, practices and testing. </li><li>Define the best development paths, with the business, to achieve stakeholder goals. </li><li>Work closely with team members and help them build skills based on your experiences. </li><li>Assist and guide others technically through collaboration and pair programming. </li><li>Troubleshoot, identify and resolve advanced issues in a timely manner. </li><li>Own and be accountable for written and reviewed code. </li><li>Write reusable, sustainable and performant code. </li><li>Write tests and defensively solve problems to create stable deliverables. </li><li>Deliver code in a timely manner as defined by our agile process. </li><li>Challenge existing code patterns, propose alternatives and justify the value gain. </li><li>Understand how existing systems will be impacted by proposed solutions. </li><li>Critically analyze the code of others as well as their own, provide constructive feedback. </li><li>Proactively ask for assistance when hindered by roadblocks or requirement issues. </li><li>Actively seek or take on complex problems within a project or domain. </li></ul>Qualifications: <ul> <li>Computer science degree or equivalent with minimum of three (3) years of software development experience. </li><li>Minimum of three (3) years of experience with coding in two or more languages(Javascript, Python, Java, etc..). </li><li>Minimum of two (2) years experience developing in a frontend framework (React.js, Angular, etc..) </li><li>Object-Oriented programming and design. </li><li>Data structure design and uses. </li><li>A Test first mentality. </li><li>Mobile experience a plus. </li><li>Node/React specific experience a plus. </li><li>Git workflow experience branching, committing and merging. </li><li>Self-motivated and demonstrates a strong attention to detail. </li><li>Passionate about delivering high-quality products to our stakeholders. </li><li>Works well in a collaborative environment, adaptable and an excellent communicator. </li><li>Curious problem solver who keeps the bigger picture in mind when solutioning. </li><li>Works closely with team members and helps them build their skills where appropriate. </li><li>Strong independent contributor who works well with other team members. </li></ul>Base Salary Range: $78,500 - $115,500 USD/annually, commensurate with experience. #LI-NP1 Benefits, Rewards & Wellness <ul> <li>Excellent Health, Dental & Vision Insurance </li><li>Retirement 401(k) Savings Plan </li><li>Fitness membership discounts </li><li>Generous paid time off policy including paid parental leave </li></ul> Zayo provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, provincial or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

Company Description

Zayo provides mission-critical bandwidth to the world's most impactful companies, fueling the innovations that are transforming our society. Zayo's 141,000-mile network in North America and Europe includes extensive metro connectivity to thousands of buildings and data centers. Zayo's communications infrastructure solutions include dark fiber, private data networks, wavelengths, Ethernet, and dedicated Internet access. Zayo serves wireless and wireline carriers, media, tech, content, finance, healthcare and other large enterprises.

Zayo is seeking a highly skilled and experienced  Senior Backend Software Engineer  with expertise in Node.js, PostgreSQL, and AWS. As a key member of our development team, the  Senior Backend Software Engineer  will play a critical role in designing, implementing, and maintaining robust backend solutions that power our applications. The ideal candidate is a proactive problem solver with a strong foundation in backend development and a deep understanding of how different technologies interact.

A typical day in the life of a senior software engineer may include the following activities:
Assisting in the design and definition of technical specifications of a new software feature with the product team.
Writing core platform code for a new feature and unit tests for functionality.
Refactoring and improving existing code for performance and simplicity. For example, breaking a large function into smaller, more maintainable, and easily tested logical units.
Researching additional ideas to improve the product/platform overall and sharing them with the team.
Interacting with customers and/or sales on a software bug, quickly resolving it, and coordinating across the team to push a fix.
Collaborating with frontend engineers and discussing quirks in network protocols and network interconnection translating to rapid updates and code improvements.
Collaborating with internal teams to surface data to users from other applications.
Reviewing merge requests from other developers and providing thoughtful feedback where appropriate.
Taking ownership of issues through the release process and partnering with QA to resolve any bugs found in testing, ensuring timely code deployments.
Responsibilities:     Backend Development: Lead the development of scalable and high-performance backend solutions using Node.js and other technologies as needed.
Salesforce Integration: Design and implement seamless integration solutions with Salesforce and ServiceNow, ensuring data consistency and system reliability.
Database Management: Utilize PostgreSQL for efficient database design, optimization, and maintenance.
AWS Services: Leverage AWS services to build and deploy scalable and reliable backend infrastructure.
API Development: Implement new and maintain existing routes for our customer-facing API.
Architecture and Design: Collaborate with cross-functional teams to architect and design robust, scalable, and maintainable backend systems.
Code Quality and Performance: Ensure code quality through best practices, code reviews, and performance optimization.
Documentation: Create and maintain comprehensive technical documentation for backend systems and integration processes.
Problem Solving: Troubleshoot and resolve complex technical issues, ensuring the stability of backend systems.
Collaboration: Work closely with customers, frontend developers, QA engineers, and other stakeholders to deliver high-quality software solutions.
Qualifications:     Degree in Computer Science, a related field or equivalent work experience.
Minimum of ten (10) years of experience working in production engineering teams.
In-depth knowledge of software architecture, design patterns, and best practices.
Knowledge of event-based architectures and microservices.
Familiarity with secure development practices, including OWASP Top 20, code-scanning tools, and peer review.
Proven experience as a Senior Backend Software Engineer with a focus on Node.js.
REST API Development, Design, and Testing.
Strong expertise in Salesforce integration, including REST and SOAP APIs.
Solid experience with PostgreSQL database design, optimization, and maintenance.
Proven experience with AWS services for backend infrastructure.
Excellent problem-solving skills and attention to detail.
Effective communication and collaboration skills.
Experience with CI/CD pipelines and DevOps practices.
Ability to mentor and guide junior developers.
Very comfortable using Git in a team environment (i.e. pull-requests, branch management, rebasing).
Experience working in an environment leveraging asynchronous communication collaboration tools like Slack, Zoom, Jira, etc.
Fearless in venturing boldly into uncharted territories and developing code where there are no previous libraries to draw from.
Preferred Experience:     AWS Experience with Lambda, S3, API Gateway, SQS, etc.
Familiarity with client-side caching in Redis.
Use of event-driven tools such as Kafka.
REST API platforms such as Postman.
PostgreSQL or other SQL experience.
Base Salary Range:  $95,800 - $136,900 USD/annually, commensurate with experience.

#LI-NP1

Benefits, Rewards & Wellness     Excellent Health, Dental & Vision Insurance
Retirement 401(k) Savings Plan
Fitness membership discounts
Generous paid time off policy including paid parental leave

Zayo provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, provincial or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

Company Description Zayo provides mission-critical bandwidth to the world's most impactful companies, fueling the innovations that are transforming our society. Zayo's 141,000-mile network in North America and Europe includes extensive metro connectivity to thousands of buildings and data centers. Zayo's communications infrastructure solutions include dark fiber, private data networks, wavelengths, Ethernet, and dedicated Internet access. Zayo serves wireless and wireline carriers, media, tech, content, finance, healthcare and other large enterprises. Zayo is seeking a Software Engineer to develop, enhance and maintain critical APIs and automation tools for our customers and internal users. As a Fullstack Software Engineer , you will be responsible for developing new applications, enhancing existing features, and developing API's that are seamless and enjoyable for our customers to use while maintaining scalable and performant code. Responsibilities: Develop new frontend and backend applications for customers. Maintain current frontend applications, ensuring continued operation and functionality. Help establish good development patterns, practices and testing. Define the best development paths, with the business, to achieve stakeholder goals. Work closely with team members and help them build skills based on your experiences. Assist and guide others technically through collaboration and pair programming. Troubleshoot, identify and resolve advanced issues in a timely manner. Own and be accountable for written and reviewed code. Write reusable, sustainable and performant code. Write tests and defensively solve problems to create stable deliverables. Deliver code in a timely manner as defined by our agile process. Challenge existing code patterns, propose alternatives and justify the value gain. Understand how existing systems will be impacted by proposed solutions. Critically analyze the code of others as well as their own, provide constructive feedback. Proactively ask for assistance when hindered by roadblocks or requirement issues. Actively seek or take on complex problems within a project or domain. Qualifications: Computer science degree or equivalent with minimum of three (3) years of software development experience. Minimum of three (3) years of experience with coding in two or more languages(Javascript, Python, Java, etc). Minimum of two (2) years experience developing in a frontend framework (React.js, Angular, etc) Object-Oriented programming and design. Data structure design and uses. A Test first mentality. Mobile experience a plus. Node/React specific experience a plus. Git workflow experience branching, committing and merging. Self-motivated and demonstrates a strong attention to detail. Passionate about delivering high-quality products to our stakeholders. Works well in a collaborative environment, adaptable and an excellent communicator. Curious problem solver who keeps the bigger picture in mind when solutioning. Works closely with team members and helps them build their skills where appropriate. Strong independent contributor who works well with other team members. Base Salary Range: $78,500 - $115,500 USD/annually, commensurate with experience. LI-NP1 Benefits, Rewards & Wellness Excellent Health, Dental & Vision Insurance Retirement 401(k) Savings Plan Fitness membership discounts Generous paid time off policy including paid parental leave Zayo provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, provincial or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

Company Description Zayo provides mission-critical bandwidth to the world's most impactful companies, fueling the innovations that are transforming our society. Zayo's 141,000-mile network in North America and Europe includes extensive metro connectivity to thousands of buildings and data centers. Zayo's communications infrastructure solutions include dark fiber, private data networks, wavelengths, Ethernet, and dedicated Internet access. Zayo serves wireless and wireline carriers, media, tech, content, finance, healthcare and other large enterprises. Zayo Group Holdings, Inc. provides communications infrastructure solutions, including fiber and bandwidth connectivity, colocation and cloud infrastructure to the world's leading businesses. Customers include wireless and wireline carriers, media and content companies, cloud providers, finance and professional services and other large enterprises. Do you dream of IP addresses and want to build tools for the networks that power the future? Are you passionate about automating repetitive tasks for users and delighting them with easy buttons? If so, then we want you on our team! We're looking for a talented Senior Software Engineer to join our growing Network Automation team. In this role, you'll be a key player in building, scaling, and automating the next generation of our network tooling infrastructure. Responsibilities: <ul> <li>Design, build, and maintain innovative tools and solutions to meet evolving business needs. This could be something as simple as developing a Mustache email template library for streamlined responses, or as complex as ML tools for automated troubleshooting </li> <li>Leverage open source automation tools and scripting languages in commercial tools (e.g., Python, Ansible, ServiceNow, Salesforce, etc) to streamline NOC information gathering, internal communication, and communication with customers </li> <li>Contribute to solving complex technical and process problems, such as mass customer communication, automating responses to trouble tickets, and injecting enrichment information into trouble tickets </li> <li>Refactor and consolidate existing tools to be a cohesive suite of tools that improve ease of use and reduce swivel-chairing to get the job done </li> <li>Collaborate with cross-functional teams (DevOps, Security, SRE) to ensure security and optimal application performance </li> <li>Own new features through the project lifecycle, working collaboratively with a team of software developers to ensure timely delivery of high-quality software solutions </li> <li>Stay up-to-date on emerging network technologies and best practices, becoming the beacon for best practices and efficient processes through the organization </li> </ul>Qualifications: <ul> <li>Bachelor's degree in Computer Science, Networking, or a related field (or equivalent experience) </li> <li>Minimum of seven (7) years of experience with network automation tools and scripting languages (Python, Ansible, Terraform) </li> <li>Experience working with various databases such as Postgres, MySQL, MongoDB, and Oracle </li> <li>Understanding of network protocols (TCP/IP, BGP, OSPF, etc.) and routing/switching technologies </li> <li>Experience in both building and integrating with RESTful APIs </li> <li>Experience with async processing and message bus communications (RabbitMQ, Kafka) </li> <li>Experience creating and executing automated software testing </li> <li>Strong abilities on the Linux command line, working with various flavors of Linux and Docker/Kubernetes </li> <li>Strong understanding of applied statistics and the ability to code systems that identify outlier behavior in large systems. </li> <li>Previous experience delivering, maintaining and promoting a production software product </li> <li>Excellent communication, collaboration skills, and experience using a variety of remote collaboration tools including Jira, Confluence, Google Suite, Zoom, etc </li> <li>Experience using Git for code management, review and deployment </li> <li>A passion for tackling complex problems and combining technical and process solutions </li> </ul>Bonus Points if you have: <ul> <li>Experience working with various vendor APIs (or netconf) including Nokia, Juniper, Fujitsu, Infinera, Cisco, and Ciena. </li> <li>Experience with various network orchestration platform such as Ciena Blue Planet, Cisco NSO, or others. </li> <li>Experience with monitoring platforms such as SevOne, Assure1, and Nagios. </li> <li>Experience with Perl. </li> <li>Certifications such as CCNA, JNCIP, or other networking certifications. </li> </ul>Base Salary Range: $95,800 - $136,900 USD/annually, commensurate with experience. Benefits, Rewards & Wellness <ul> <li>Excellent Health, Dental & Vision Insurance </li> <li>Retirement 401(k) Savings Plan </li> <li>Fitness membership discounts </li> <li>Generous paid time off policy including paid parental leave </li> </ul>Zayo provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, provincial or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

Company Description Zayo provides mission-critical bandwidth to the world's most impactful companies, fueling the innovations that are transforming our society. Zayo's 141,000-mile network in North America and Europe includes extensive metro connectivity to thousands of buildings and data centers. Zayo's communications infrastructure solutions include dark fiber, private data networks, wavelengths, Ethernet, and dedicated Internet access. Zayo serves wireless and wireline carriers, media, tech, content, finance, healthcare and other large enterprises. Zayo is seeking a highly skilled and experienced Senior Backend Software Engineer with expertise in Node.js, PostgreSQL, and AWS. As a key member of our development team, the Senior Backend Software Engineer will play a critical role in designing, implementing, and maintaining robust backend solutions that power our applications. The ideal candidate is a proactive problem solver with a strong foundation in backend development and a deep understanding of how different technologies interact. A typical day in the life of a senior software engineer may include the following activities: <ul> <li>Assisting in the design and definition of technical specifications of a new software feature with the product team. </li> <li>Writing core platform code for a new feature and unit tests for functionality. </li> <li>Refactoring and improving existing code for performance and simplicity. For example, breaking a large function into smaller, more maintainable, and easily tested logical units. </li> <li>Researching additional ideas to improve the product/platform overall and sharing them with the team. </li> <li>Interacting with customers and/or sales on a software bug, quickly resolving it, and coordinating across the team to push a fix. </li> <li>Collaborating with frontend engineers and discussing quirks in network protocols and network interconnection translating to rapid updates and code improvements. </li> <li>Collaborating with internal teams to surface data to users from other applications. </li> <li>Reviewing merge requests from other developers and providing thoughtful feedback where appropriate. </li> <li>Taking ownership of issues through the release process and partnering with QA to resolve any bugs found in testing, ensuring timely code deployments. </li> </ul>Responsibilities: <ul> <li>Backend Development: Lead the development of scalable and high-performance backend solutions using Node.js and other technologies as needed. </li> <li>Salesforce Integration: Design and implement seamless integration solutions with Salesforce and ServiceNow, ensuring data consistency and system reliability. </li> <li>Database Management: Utilize PostgreSQL for efficient database design, optimization, and maintenance. </li> <li>AWS Services: Leverage AWS services to build and deploy scalable and reliable backend infrastructure. </li> <li>API Development: Implement new and maintain existing routes for our customer-facing API. </li> <li>Architecture and Design: Collaborate with cross-functional teams to architect and design robust, scalable, and maintainable backend systems. </li> <li>Code Quality and Performance: Ensure code quality through best practices, code reviews, and performance optimization. </li> <li>Documentation: Create and maintain comprehensive technical documentation for backend systems and integration processes. </li> <li>Problem Solving: Troubleshoot and resolve complex technical issues, ensuring the stability of backend systems. </li> <li>Collaboration: Work closely with customers, frontend developers, QA engineers, and other stakeholders to deliver high-quality software solutions. </li> </ul>Qualifications: <ul> <li>Degree in Computer Science, a related field or equivalent work experience. </li> <li>Minimum of ten (10) years of experience working in production engineering teams. </li> <li>In-depth knowledge of software architecture, design patterns, and best practices. </li> <li>Knowledge of event-based architectures and microservices. </li> <li>Familiarity with secure development practices, including OWASP Top 20, code-scanning tools, and peer review. </li> <li>Proven experience as a Senior Backend Software Engineer with a focus on Node.js. </li> <li>REST API Development, Design, and Testing. </li> <li>Strong expertise in Salesforce integration, including REST and SOAP APIs. </li> <li>Solid experience with PostgreSQL database design, optimization, and maintenance. </li> <li>Proven experience with AWS services for backend infrastructure. </li> </ul><ul> <li>Excellent problem-solving skills and attention to detail. </li> <li>Effective communication and collaboration skills. </li> <li>Experience with CI/CD pipelines and DevOps practices. </li> <li>Ability to mentor and guide junior developers. </li> <li>Very comfortable using Git in a team environment (i.e. pull-requests, branch management, rebasing). </li> <li>Experience working in an environment leveraging asynchronous communication collaboration tools like Slack, Zoom, Jira, etc. </li> <li>Fearless in venturing boldly into uncharted territories and developing code where there are no previous libraries to draw from. </li> </ul>Preferred Experience: <ul> <li>AWS Experience with Lambda, S3, API Gateway, SQS, etc. </li> <li>Familiarity with client-side caching in Redis. </li> <li>Use of event-driven tools such as Kafka. </li> <li>REST API platforms such as Postman. </li> <li>PostgreSQL or other SQL experience. </li> </ul>Base Salary Range: $95,800 - $136,900 USD/annually, commensurate with experience. #LI-NP1 Benefits, Rewards & Wellness <ul> <li>Excellent Health, Dental & Vision Insurance </li> <li>Retirement 401(k) Savings Plan </li> <li>Fitness membership discounts </li> <li>Generous paid time off policy including paid parental leave </li> </ul>Zayo provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, provincial or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

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