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Generac Power Systems Interview Questions

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Let’s say we have a table with an <code>id</code> and <code>name</code> fields. The table holds over 100 million rows and we want to sample a random row in the table without throttling the database.

Write a query to randomly sample a row from this table.

Input:

<code>big_table</code> table

<table>
<thead>
<tr>
<th>Columns</th>
<th>Type</th>
</tr>
</thead>

<tbody>
<tr>
<td><code>id</code></td>
<td>INTEGER</td>
</tr>

<tr>
<td><code>name</code></td>
<td>VARCHAR</td>
</tr>
</tbody>
</table>

Write a query to randomly sample a row from a big table.

Random SQL Sample

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?

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

Generac Power Systems Salaries by Position

We are Generac, a leading energy technology company committed to powering a smarter world. Over the 60 plus years of Generac's history, we've been dedicated to energy innovation. From creating the home standby generator market category, to our current evolution into an energy technology solutions company, we continue to push new boundaries. Are you interested in joining a high-growth company and software team in the Clean Energy industry? Do you have expertise in React Native and front-end technologies, with a touch of UI/UX design skills? Generac Power Systems is seeking a Software Engineer IV, with a focus on React Native. We are actively working to reduce global carbon emissions through the manufacturing and sale of renewable power backup systems. We are seeking engineers looking to apply their technology skills to the creation of mobile apps that support this mission. Our company has recently experienced explosive growth from its start-up origin, and we need to aggressively scale up our technology while continuing to drive innovation of consumer power electronics. We are growing extremely fast and looking to build strong brand recognition as the go-to home battery backup system with installers, homeowners, and grid operators by building reliable, robust, IoT systems with featureful mobile applications. Why work for us? <ul><li>You want to contribute technologically to the reduction of worldwide carbon emissions </li><li>You want to help build a distributed power generation network </li><li>You want to interact with a modern tech stack </li><li>You want to contribute to the adoption of our end-user applications </li></ul>What will you do? You will have significant responsibility and influence in shaping the applications you build. We are looking for someone to iterate quickly on all stages from development to production, including bringing new products to market. Successful candidates will have strong engineering skills and communication, and a belief that data-driven processes lead to great products. You will need to have a passion for quality and an ability to understand complex systems. Above all, you should be passionate about solving real-world problems, and bringing value to the apps you create. As part of this role, you will be required to: <ul><li>Architect and Implement mobile apps in React Native and Typescript that meet market needs and are easily extended with evolving business needs. </li><li>Drive end-to-end software development from design through deployment and post-deployment improvements. </li><li>Innovate UI/UX design by collaborating with product managers, designers, and other engineers as required. </li><li>Create wireframes, storyboards, user flows, process flows and site maps in Figma to effectively communicate interaction and design ideas. </li><li>Implement infrastructure for the ease of validation and mobile app maintenance. </li><li>Review project ideas and provide technology input, prescribing appropriate application solutions, which balance business requirements with Generac's technology standards to arrive at the optimal solution. </li><li>Maintain technical expertise in emerging front-end technical trends. </li><li>Write user and technical specifications in line with business needs. </li><li>Self-directed and capable of working in a dynamic environment with a high attention to detail. </li><li>Travel to different facilities worldwide, collaborating with teams and deploying our solutions. </li></ul>What will you be required to have? <ul><li>Bachelor's or master's degree in Computer Science or related field </li><li>6+ years as a JavaScript developer </li><li>4+ years experience with Typescript and React Native, and tools such as Redux </li><li>Experience with UI/UX design, preferably with Figma </li><li>Deep understanding of front-end architecture and data-driven development </li></ul>What other skills would be helpful? <ul><li>Experience with AWS services such as S3, IAM, etc. </li><li>Experience with SQL and NoSQL databases </li><li>Knowledge of CI/CD tools and processes; Git, Jenkins, Maven, CircleCI. </li><li>Proven ability to build team depth and mentor engineers. </li><li>Be engaged, proactive, and positive when taking on challenging tasks, owning assignments, and taking accountability for personal and overall team success. </li></ul>What are the benefits? <ul><li>Comprehensive medical benefits </li><li>Employer RRSP contribution matching </li><li>Work-from-home flexibility </li></ul> Physical Demands: While performing the duties of this job, the employee is regularly required to talk and hear; and use hands to manipulate objects or controls. The employee is regularly required to stand and walk. On occasion the incumbent may be required to stoop, bend or reach above the shoulders. The employee must occasionally lift up to 25 - 50 pounds. Specific conditions of this job are typical of frequent and continuous computer-based work requiring periods of sitting, close vision and ability to adjust focus. Occasional travel. "We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law."

We are Generac, a leading energy technology company committed to powering a smarter world. Over the 60 plus years of Generac's history, we've been dedicated to energy innovation. From creating the home standby generator market category, to our current evolution into an energy technology solutions company, we continue to push new boundaries. What to Expect Generac is building the next generation of home energy systems. Our products include solar systems and battery backup, standby generators, smart thermostats, smart breaker boxes, and EV chargers. We integrate all our products together to provide intelligent energy management and savings for our customers. Our products are enabling the renewable energy rollout, increasing energy grid performance and reliability, saving our customers money, and keeping the lights on in homes even when the grid is down. Our approach takes "full-stack" to the extreme with tight collaboration between teams on every layer from firmware to web and mobile apps. Our AWS stack includes GQL, gRPC, Java, Go, Typescript, MQTT, Terraform, and a wide range of AWS tech. We're looking for a Senior Software Engineer to build app backends and integrations for an unannounced future mobile app. We solve identity and data model integration challenges, integrate backends together, create scalable APIs, and produce unified gateway layers for app dev teams. This is an opportunity to play a key role bridging between existing systems and creating new systems from scratch. What You'll Do <ul><li>Gather requirements, network with stakeholders across Generac, and define solutions.</li><li>Interface with product management teams, infrastructure and ops, mobile/web app teams, firmware teams, and embedded software teams as needed.</li></ul><ul><li>Document your assumptions and requirements, present your proposals, iterate, achieve buy-in from stakeholders and collaborators, and set correct expectations for your work.</li></ul><ul><li>Design, validate, implement, and test web services on AWS using Java, Go, TypeScript, or Python.</li></ul><ul><li>Build rigorous, fully automated test suites at all levels of the stack.</li><li>Contribute to our culture of pragmatic excellence.</li></ul> What You'll Bring <ul><li>Bachelor's degree or higher in an Engineering, Computer Science field, or equivalent experience.</li><li>5+ years of software engineering experience.</li><li>2+ years of experience with AWS.</li><li>2+ years of experience in Java.</li><li>2+ years of experience in at least one of: Go, Typescript, Python.</li><li>2+ years of experience in IaC tools such as Terraform, Cloudformation, or CDK.</li><li>Proven record of excellent end-to-end testing practice. At the end of a project, you sleep well at night knowing that your assumptions are verified, and your solutions are proven.</li><li>Rigorous approach to rollouts and deployments. Your deployments are low stress because you load tested at 10x of current production scale and use techniques such as feature flags to roll out with confidence.</li><li>An eagerness to understand how your work fits into a larger, cross-disciplinary system. You want to understand the systems and teams you interface with.</li><li>Excellent written and verbal communication and problem-solving skills.</li><li>A strong drive for learning and mentorship. You seek out feedback and improvement. You proactively mentor and advise more Jr engineers.</li></ul> Physical Demands: While performing the duties of this job, the employee is regularly required to talk and hear; and use hands to manipulate objects or controls. The employee is regularly required to stand and walk. On occasion the incumbent may be required to stoop, bend or reach above the shoulders. The employee must occasionally lift up to 25 - 50 pounds. Specific conditions of this job are typical of frequent and continuous computer-based work requiring periods of sitting, close vision and ability to adjust focus. Occasional travel. "We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law."

We are Generac, a leading energy technology company committed to powering a smarter world. Over the 60 plus years of Generacs history, weve been dedicated to energy innovation. From creating the home standby generator market category, to our current evolution into an energy technology solutions company, we continue to push new boundaries. Generac Clean Energy Solutions (GCES) is on a mission to drive down global carbon emissions through the manufacture and sale of renewable energy production and storage technologies. GCES is seeking a Senior Embedded Engineer (Level III) to contribute to the design, i mplementation, and maintenance of the system that orchestrates automated control of all equipment that features in their renewable energy production and storage solutions deployed to residential sites. This critical, highly visible system services a wide variety of stakeholders, both internal and external to GCES, and ensures that conflicts among stakeholder expectations are resolved in a transparent manner that never comprises site integrity or customer safety. This role will be located onsite at the Engineering Center of Excellence in Reno, NV. This is an on-site role, with reasonable flexibility and accommodations. Essential Duties & Responsibiliti es: Lead the design of new control system components. Contribute to the development of the firmware-based portion of the control system, written in Rust Implement s ystem/end-to-e nd tests to exercise changes. Contribute to the maintenance and expansion of the continuous integration pipeline for the firmware-based portion of the control system. Represent the control system in interactions with internal and external stakeholders. Play a leading role in establishing the priority of features. Participate in sprints and associated meetings. Review and critique peer contributions through pull requests. Mentor junior engineers Minimal Q ualifications: Bachelors degree in computer science, software engineering or a related discipline Experience leading design and implementation of software applications in a professional context. Familiarity with edge device firmware application implementation using Rust or C or C++, Experience writing automated unit and s ystem/end-to-e nd tests in a professional context. Familiarity with continuous integration and related technologies (e.g. CircleCI or Jenkins) Someone who can work with cross functional teams such as other firmware teams and contractors and has demonstrated experience developing requirements and revision control standards Preferred Qualifications: MQTT or CAN and Protocol buffers is a bonus. Embedded Linux Platform Worked with a wide variety of modern and emerging technologies. LI-HR1 Physical Demands : While performing the duties of this job, the employee is regularly required to talk and hear; and use hands to manipulate objects or controls. The employee is regularly required to stand and walk. On occasion the incumbent may be required to stoop, bend or reach above the shoulders. The employee must occasionally lift up to 25 - 50 pounds. Specific conditions of this job are typical of frequent and continuous computer-based work requiring periods of sitting, close vision and ability to adjust focus. Occasional travel. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law. Our success is directly tied to our employees professional growth and personal well-being, combined with strong families and communities. As an inclusive workplace, our employees embrace diversity, celebrate differences, and treat others with equality and respect. Over the 60 plus years of Generacs history, weve been dedicated to energy innovation. From creating the home standby generator market category, to our current evolution into an energy technology solutions company, we continue to push new boundaries. As one of the leaders and largest suppliers of power generation equipment and technology, the work we do touches millions of lives. Employees at Generac are encouraged to be innovative and are valued as an integral part of our global team. Our challenging goals develop knowledgeable employees dedicated to helping continue Generacs success. Generac provides individuals the opportunity to work in a fast-paced agile work environment where their work makes a difference in peoples lives and their own.

We are Generac, a leading energy technology company committed to powering a smarter world. Over the 60 plus years of Generacs history, weve been dedicated to energy innovation. From creating the home standby generator market category, to our current evolution into an energy technology solutions company, we continue to push new boundaries. At Generac, we dont simply wait for opportunities to come to us. Our teams consistently seek out new and innovative advances in our industry, driving our great success and company growth. We are a leader in the power generation industry that is successfully breaking ground in the Clean Energy segment. This growth equals rapid career advancement opportunities for those who want to be challenged and enjoy a fast-paced, high-performance culture. Join us, as we inspire change for a better world, positively impact our people and the community, influence and achieve positive results that support growth, and innovate the industry. The Software Business Analyst III is responsible for helping implement software solutions in a cost-effective way by managing, prioritizing and providing specific functional requirements of products or features to the software development team as identified by the product owners. These requirements are to be developed by quickly analyzing, understanding and documenting technical processes in an easy to understand format. The work must be completed consistently and timely to insure efficient delivery of solutions. Mentoring Jr business analysts and defining process improvements for BA Team. Essential Duties and Responsibilities: Writing and consistently delivering actionable, detailed stories and business requirements, based on direction given by the product owner, analysis and insights gained from stakeholders (business SMEs, software development team, UI/UX). Foster collaboration across team to achieve optimized solutions. Use of data to drive analysis and decision making regarding feature priority, and process optimization in assistance of the product owner. Establishment of the BA role and processes within the team and cross-functionally by applying best practices for effective communication and problem-solving. Act as a mentor to junior Business Analyst(s) Minimum Qualifications: Bachelor degree in Business Administration, Computer Science, Information Systems, or equivalent experience 5 years experience in commercial software development within Agile software development team in one or more of the following roles: Business Analyst, Software Developer, Product Management Specialist Preferred Qualifications: Prior experience leading or mentoring business analyst(s) Prior experience including: web and mobile applications Knowledge, Skills, Abilities: Expertise in conceptual modeling; ability to see the big picture and envision possible solutions Outstanding verbal and written communication skills Ability to prioritize their tasks, time-box time spent on analysis and consistently deliver work-product Ability to facilitate a team to consensus on scope, design decisions, and implementation decisions Knowledge of utilizing scrum/agile ceremonies such as standups, sprint planning, and sprint review processes to deliver software solutions Ability to ask strong questions to help the team see areas that may lead to problems Ability to document requirements formally or informally depending on the need of the project Understanding of the agile development process Familiarity with requirements techniques such as, user stories, use cases, and informal modeling Ability to work as part of large implementation team that executes in agile fashion Strong attention to detail and time management skills Physical Demands: While performing the duties of this job, the employee is regularly required to talk and hear; and use hands to manipulate objects or controls. The employee is regularly required to stand and walk. On occasion the incumbent may be required to stoop, bend or reach above the shoulders. The employee must occasionally lift up to 25 pounds. Specific conditions of this job include are typical of frequent and continuous computer-based work requiring periods of sitting, close vision and ability to adjust focus. Occasional travel. Great Reasons to work for Generac: Competitive Benefits: Health, Dental, Vision, 401k and many more State-of-the-art facility with an onsite gym, walking trails, caf, free parking and many employee activities Scheduled events throughout the year that allow our employees, both current and retirees, to gather together and enjoy their time with their families and co-workers Eligible for summer hours (Memorial Day Labor Day) Pride When a storm strikes, Generac employees always rise to the occasion. Each time a storm hits many employees volunteer their time with the customer support team or on the production line while others go right into storm-affected areas to repair generators We believe in having fun. From minor celebrations to major events, our employees balance their work by building a strong culture of teamwork and collaboration through a variety of occasions, including our Fun Days. Every day is Jeans Day Dress for your day. Product loan and discount programs We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law. Physical Demands: While performing the duties of this job, the employee is regularly required to talk and hear; and use hands to manipulate objects or controls. The employee is regularly required to stand and walk. On occasion the incumbent may be required to stoop, bend or reach above the shoulders. The employee must occasionally lift up to 25 pounds. Specific conditions of this job are typical of frequent and continuous computer-based work requiring periods of sitting, close vision and ability to adjust focus. Occasional travel. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law. Our success is directly tied to our employees professional growth and personal well-being, combined with strong families and communities. As an inclusive workplace, our employees embrace diversity, celebrate differences, and treat others with equality and respect. Over the 60 plus years of Generacs history, weve been dedicated to energy innovation. From creating the home standby generator market category, to our current evolution into an energy technology solutions company, we continue to push new boundaries. As one of the leaders and largest suppliers of power generation equipment and technology, the work we do touches millions of lives. Employees at Generac are encouraged to be innovative and are valued as an integral part of our global team. Our challenging goals develop knowledgeable employees dedicated to helping continue Generacs success. Generac provides individuals the opportunity to work in a fast-paced agile work environment where their work makes a difference in peoples lives and their own.

Generac Power Systems Interview Questions

Generac Power Systems Interview Guides

Generac Power Systems Interview Questions

Generac Power Systems Salaries by Position

Generac Power Systems Opening Jobs