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Ark Solutions, Inc. Interview Questions

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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 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

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

Ark Solutions, Inc. Salaries by Position

Business AnalystTallahassee, FLHybrid Role Overview: We are seeking a Business Analyst to evaluate business requirements and support the development and enhancement of business applications. The ideal candidate will have experience in process analysis, change management, and system integration, utilizing industry-standard analysis techniques to ensure successful project outcomes.Responsibilities:<ul><li>Requirements Evaluation: Analyze business requirements for application development, process improvements, and system enhancements or integrations.</li><li>Process Analysis: Conduct in-depth analysis of business and IT processes to identify opportunities for improvement.</li><li>System Support: Participate in the definition, testing, training, implementation, and support of system requirements.</li><li>Testing and Documentation: Develop test schedules, review test plans, track, and document results to ensure that business requirements are met.</li><li>Analysis Techniques: Apply industry-standard techniques such as data flow modeling, use case and workflow analysis, functional decomposition, data modeling, security awareness planning, and object modeling.</li></ul><li></li>Qualifications:<ul><li>Experience: 4-6 years of experience as a Business Analyst or in a related role.</li><li>Technical Skills: Proficiency in various analysis techniques and tools.</li><li>Analytical Skills: Strong ability to evaluate and improve business and IT processes.</li><li>Problem-Solving: Effective in developing solutions for complex business challenges.</li></ul>

Senior Business AnalystTallahassee, Florida, United StatesOnsite Role!!! Roles and Responsibilities: <ol><li>A minimum of 3 to 5 years of solid business/systems analysis experience and software development projects is required.</li><li>Proficiency in Microsoft Office Suite, particularly Excel, Word, PowerPoint, required. </li><li>Experience working with Microsoft DevOps is highly desired.</li><li>Knowledge of Rules 60GG-1 – 60GG-5, Florida Administrative Code, is highly desired.</li><li>Experience with data migration.</li><li>Knowledge of change and release management is highly desired.</li><li>Knowledge of testing and quality assurance tools and techniques.</li><li>Preference will be given to candidates with knowledge of Florida Department of Transportation systems and applications.</li></ol> Primary Job Duties/ Tasks<ul><li>Research and understand business processes and their inter-relationships.</li><li>Research and document impact on agency business systems in relation to the PALM implementation.</li><li>Facilitate joint analysis workshops with the business units.</li><li>Gather and document business and technical requirements.</li><li>Coordinate with data migration and development teams.</li><li>Create detailed use cases, business rules, and requirements.</li><li>Develop Test Plans and Test Cases.</li><li>Coordinate testing and quality assurance efforts.</li><li>Perform oversight reviews of deliverables for compliance with department standards.</li></ul>

Data Analyst/ Data EngineerMechanicsburg, Pennsylvania, United StatesHybrid Role! Required Qualifications:<ul><li>Experience:</li><li>Minimum of 3-5 years of experience in data analysis, data engineering, or a related field.</li><li>Proven experience with ETL processes and tools (e.g., Apache NiFi, Talend, Informatica).</li><li>Experience with data visualization tools such as Tableau, Power BI, or similar.</li><li>Strong SQL skills and experience with relational databases (e.g., SQL Server, Oracle).</li><li>Experience with cloud-based data platforms (e.g., AWS, Azure, Google Cloud) is highly desirable.</li><li>Proficiency in programming languages such as Python, R, or Java for data processing tasks.</li><li>Technical Skills:</li><li>Strong understanding of data modeling, data warehousing, and big data architectures.</li><li>Experience with distributed data processing frameworks (e.g., Hadoop, Spark) is a plus.</li><li>Familiarity with version control systems like Git and CI/CD pipelines.</li><li>Soft Skills:</li><li>Excellent analytical and problem-solving skills with attention to detail.</li><li>Strong communication skills, both written and verbal, with the ability to convey technical concepts to non-technical stakeholders.</li><li>Ability to work both independently and collaboratively in a hybrid work environment.</li><li>Strong organizational skills and the ability to manage multiple projects simultaneously.</li></ul> Education:<ul><li>Bachelor’s degree in Computer Science, Information Systems, Data Science, or a related field. A Master’s degree is a plus.</li></ul> Preferred Qualifications:<ul><li>Experience with data governance and data quality frameworks.</li><li>Certifications in cloud platforms (e.g., AWS Certified Data Analytics, Microsoft Azure Data Engineer) are a plus.</li><li>Knowledge of machine learning techniques and their application in data analysis is desirable.</li></ul>

Business AnalystTallahassee, FL100% Onsite Role Job Description: A minimum of 3 to 5 years of solid business/systems analysis experience and software development projects is required.Proficiency in Microsoft Office Suite, particularly Excel, Word, PowerPoint, required.Experience working with Microsoft DevOps is highly desired.Knowledge of Rules 60GG-1 – 60GG-5, Florida Administrative Code, is highly desired.Experience with data migration.Knowledge of change and release management is highly desired.Knowledge of testing and quality assurance tools and techniques.Preference will be given to candidates with knowledge of Florida Department of Transportation systems and applications. Primary Job Duties/ Task:<ol><li>The activities the candidate will be tasked with include, but are not limited to the following: Research and understand business processes and their inter-relationships.</li><li>Research and document impacts on agency business systems in relation to the P ALM implementation.</li><li>Facilitate joint analysis workshops with the business units.</li><li>Gather and document business and technical requirements.</li><li>Coordinate with data migration and development teams.</li><li>Create detailed use cases, business rules, and requirements.</li><li>Develop Test Plans and Test Cases.</li><li>Coordinate testing and quality assurance efforts.</li><li>Perform oversight reviews of deliverables for compliance with department standards.</li></ol> Job Specific Knowledge, Skills, and Abilities (KSAs):<ol><li>The submitted candidate must be able to apply specific knowledge, skills, and abilities in the following areas:Business Analysis: Ability to perform detailed research, business analysis, as-is and to-be analysis, process modeling. Use of software tools is required and include, but are not limited to, MS Word, MS PowerPoint, MS Excel, and Visio. Certified Business Analysis Professional (CBAP) or Certified Scrum Master (C SM ) is highly desired.</li><li>System Analysis & Design: Ability to perform System Analysis & Design using a variety of modeling methodologies and techniques.</li><li>Facilitation: Ability to expertly facilitate workshops and meetings with stakeholders.</li><li>Technical Understanding: Technical knowledge and understanding of IT infrastructure and software development practices and techniques.</li><li>Project Management: Knowledge of State of Florida Project Management Rule 60GG-1. Ability to apply principles and techniques in the Project Management Body of Knowledge (PMBOK).</li><li>Additional :Advanced skills with Microsoft products: SharePoint, Teams, Word, Excel, PowerPoint, Power BI, and Project.</li><li>Ability to relate to stakeholders' needs, document their requirements, and perform duties in the absence of staff.</li><li>Ability to receive and give constructive criticism and maintain effective work relationships with others.</li><li>Ability to adjust to changing demands in a dynamic environment with diverse work assignments.</li></ol>

Senior Software EngineerHybrid RoleBethesda, MDNeed Local Candidates Only JOB SUMMARYWe are seeking an outstanding engineering talent with the experience to lead the design, solutioning and delivery of large-scale enterprise applications. The candidate should be product focused and deeply passionate about solving complex problems. Candidate must have the ability to communicate upward to superiors and laterally to other departments, keeping the organization at large in sync and making sure that their team continues to deliver results. Demonstrated the ability to monitor multiple projects to successful completion, maintaining scope within the time and budget constraints. Capable of creating solutions that serve the business needs by leveraging leading edge technologies in an innovative and impactful manner. CANDIDATE PROFILE<ul><li>Education and Experience Required:7+ years' experience in software development with experience in Java/JEE application development.</li><li>5+ years hands-on experience with application development tools</li><li>Undergraduate degree or equivalent experience/certification</li></ul> Preferred:<ul><li>Experience leading and managing end-to-end integration solutions development for enterprise software or hosted high-tech services.</li><li>Worked on initiatives to implement Microservices by applying best practices in the industry.</li><li>Successfully lead and managed development of cloud native applications using Play, Akka or SpringBoot.</li><li>Working knowledge in DevOps, Containerization and development of CI/CD pipelines.</li><li>Deep knowledge and hands-on experience in API management platforms such as Akana, Mulesoft, Apigee, is a plus.</li><li>Capable of performing requirement analysis, solution architecture reviews and high-level solution design, resource-based and API specification development.</li><li>Experience working in an agile development environment with an onshore offshore model.</li><li>Must be results oriented having demonstrated technology leadership experience in developing cutting edge technology.</li></ul> CORE WORK ACTIVITIES: <ul><li>Technical LeadershipTrains and/or mentors other team members, and peers as appropriate</li><li>Provides financial input on department or project budgets, capital expenditures or other cost/resource estimates as requested</li><li>Identifies opportunities to enhance the service delivery processes.</li></ul> <ul><li>Delivering TechnologyPerforms more complex quantitative and qualitative analyses for service delivery processes and projects.</li><li>Facilitates achievement of expected deliverables and obligations of Services Providers</li><li>Validates completeness of requirements prior to Service Provider solutioning</li><li>Ensures all projects follow the defined development and business case processes</li><li>Ensures proper coordination with appropriate IT and vendor relations teams</li><li>Provides consultation for routine and complex systems development</li><li>Ensures early warning to the business stakeholder executives regarding degraded or missed service levels</li><li>Coordinates with Operations and Infrastructure teams for deployment and production support activities</li></ul> <ul><li>IT Governance:Follows all defined IR standards and processes (i.e. IT Governance, SM&G, Architecture, etc.), and provides input for improvements to the appropriate process owners as needed</li><li>Maintains a proper balance between business and operational risk</li><li>Follows the defined project management standards and processes</li></ul> <ul><li>Service Provider ManagementValidates that Service Providers develop and manage respective aspects of a project plan, including schedules, deliverables, and appropriate metrics.</li><li>Makes short term plans for the team to effectively utilize resources</li><li>Monitors Service Provider outcomes</li><li>Reviews estimates of work effort for client project provided by Service Providers for accuracy</li><li>Facilitates timely resolution of service delivery problems and minimizes the impact to clients</li></ul> MANAGEMENT COMPETENCIES:Leadership<ul><li>Communication - Conveys information and ideas to others in a convincing and engaging manner through a variety of methods.</li><li>Leading Through Vision and Values - Keeps the organization's vision and values at the forefront of employee decision making and action.</li><li>Managing Change - Initiates and/or manages the change process and energizes it on an ongoing basis, taking steps to remove barriers or accelerate its pace; serves as role model for how to handle change by maintaining composure and performance level under pressure or when experiencing challenges</li><li>Problem Solving and Decision Making - Identifies and understands issues, problems, and opportunities; obtains and compares information from different sources to draw conclusions, develops and evaluates alternatives and solutions, solves problems, and chooses a course of action.</li><li>Professional Demeanor - Exhibits behavioral styles that convey confidence and command respect from others; makes a good first impression and represents the company in alignment with its values.</li><li>Strategy Development - Develops business plans by exploring and systematically evaluating opportunities with the greatest potential for producing positive results; ensures successful preparation and execution of business plans through effective planning, organizing, and on-going evaluation processes.</li></ul> <ul><li>Managing ExecutionBuilding a Successful Team - Uses an effective interpersonal style to build a cohesive team; inspires and sustains team cohesion and engagement by focusing the team on its mission and importance to the organization.</li><li>Strategy Execution – Ensures successful execution across of business plans designed to maximize customer satisfaction, profitability, and market share through effective planning, organizing, and on-going evaluation processes.</li><li>Driving for Results - Sets high standards of performance for self and/or others; assumes responsibility for work objectives; initiates, focuses, and monitors the efforts of self and/or others toward the accomplishment goals; proactively takes action and goes beyond what is required.</li></ul> <ul><li>Building RelationshipsCustomer Relationships - Develops and sustains relationships based on an understanding of customer/stakeholder needs and actions consistent with the company's service standards.</li><li>Global Mindset - Supports employees and business partners with diverse styles, abilities, motivations, and/or cultural perspectives; utilizes differences to drive innovation, engagement and enhance business results; and ensures employees are given the opportunity to contribute to their full potential.</li><li>Strategic Partnerships - Develops collaborative relationships with fellow employees and business partners by making them feel valued, appreciated, and included; explores partnership opportunities with other people in and outside the organization; influences and leverages corporate and continental shared services and/or discipline leaders (e.g., HR, Sales & Marketing, Finance, Revenue Management) to achieve objectives; maintains effective external relations with government, business and industry in respective countries; performs effectively as a liaison between locations, disciplines, and corporate to ensure needed resources are received and corporate strategies are understood and executed.</li></ul> <ul><li>Generating Talent and Organizational Capability:Developing Others - Supports the development of other's skills and capabilities so that they can fulfill current or future job/role responsibilities more effectively.</li><li>Organizational Capability - Evaluates and adapts the structure of assignments and work processes to best fit the needs and/or support the goals of an organizational unit.</li><li>Learning and Applying Professional Expertise</li><li>Continuous Learning - Actively identifies new areas for learning; regularly creates and takes advantage of learning opportunities; uses newly gained knowledge and skill on the job and learns through their application.</li><li>Technical Acumen - Understanding and utilizing professional skills and knowledge in a specific functional area to conduct and manage everyday business operations and generate innovative solutions to approach function-specific work challenges</li><li>Technical Intelligence: Knowledge and ability to define and apply appropriate technology to enhance business process</li><li>Development Methodologies: Knowledge of general stages of SDLC framework and the application tiers within the development space.</li><li>Information Security: Knowledge of the security considerations relevant within the development space, including industry best practices related to information security</li><li>Business Acumen - Understands and utilizes business information to manage everyday operations and generate innovative solutions to approach business and administrative challenges.</li><li>Basic Competencies - Fundamental competencies required for accomplishing basic work activities.</li><li>Basic Computer Skills - Using basic computer hardware and software (e.g., personal computers, word processing software, Internet browsers, etc.).</li><li>Mathematical Reasoning - The ability to add, subtract, multiply, or divide quickly, correctly, and in a way that allows one to solve work-related issues.</li><li>Oral Comprehension - The ability to listen to and understand information and ideas presented through spoken words and sentences.</li><li>Reading Comprehension - Understanding written sentences and paragraphs in work related documents.</li><li>Writing - Communicating effectively in writing as appropriate for the needs of the audience.</li></ul>

Business AnalystAtlanta, GA100% RemoteContract Position Roles and Responsibilities:<ul><li>Identifies and defines business requirements by quickly understanding business and technical requirements based on the input and opinions from a diverse group of users</li><li>Works on process flows and screen designs and provides storyboarding to support system design. Review and interpret ongoing business requirements.</li><li>Documents business requirements in a suitable format that communicates the specific functionality that will be developed for the product and obtains appropriate approvals.</li><li>Articulate, Communicate, and Coordinate with UI/UX, app development, backend, CMS, Testing, and other and subject matter experts on design & development.</li><li>Works closely with the applications manager to create and maintain product roadmaps, epics, user stories, use cases, and other product documentation.</li><li>Write test cases based on wireframes, comps, and functional requirements</li><li>Conduct functional testing and cross-browser and mobile device testing</li><li>Be responsible for the end-to-end testing of complete, interactive web and mobile applications</li><li>Monitor and identify problems with content, layout, usability, accessibility, functionality, guidelines, and more across multiple browsers and devices</li><li>Review product specifications and develop effective testing strategies, plans, and tools to ensure project goals are met</li><li>Thoroughly test solutions to ensure functionality and integrity</li><li>Ability to write queries using SQL and compile data and reports as needed.</li><li>Manage and maintain all requirements materials and traceability matrices</li><li>Help Desk support as needed to support production applications</li></ul> <ul><li>Preferred Qualifications:Bachelor's Degree in Computer Science, IT, MIS, Engineering, or related fields.</li><li>7+ years of experience as a BA/QA Analyst.</li><li>Experience across the SDLC, including requirements, design, development, testing, documentation, training, deployment, operations, support, and maintenance.</li><li>Ability to work well with business unit SMEs, Business Analysts, vendors, and end users in cross-functional teams.</li><li>Extremely detail-oriented, organized, structured, analytical, and logical, with strong problem-solving skills.</li><li>Track record of meeting or exceeding client expectations, personal performance expectations, and achieving project goals.</li></ul>Skills Required Bachelor's Degree in Computer Science, IT, MIS, Engineering, or related fields.Experience as a BA/QA AnalystExperience across the SDLC, including requirements, design, development, testing, documentation, training, deployment, operations, support, and mainAbility to work well with business unit SME's, Business Analysts, vendors, and end users in cross-functional teams.Extremely detail oriented, organized, structured, analytical, and logical, strong problem-solving skillsTrack record of meeting or exceeding client expectations, personal performance expectations, and achieving project goals.

Job Title: Senior Software Engineer Location: Bethesda, MD (Hybrid) Job Description:We are looking for a highly skilled Senior Software Engineer with extensive experience in Microservices, API development, and full-stack technologies to join our dynamic team in Bethesda, MD. This hybrid position offers the opportunity to work on cutting-edge projects that drive innovation and transform business operations. Key Responsibilities:<ul><li>Microservices Development: Design, develop, and maintain scalable and efficient microservices architecture that supports the organization’s goals and enhances system performance.</li><li>API Development: Build and maintain RESTful APIs, ensuring they are secure, reliable, and optimized for performance.</li><li>Full-Stack Development: Work across the entire software development stack, including front-end, back-end, and database layers to deliver comprehensive solutions.</li><li>System Integration: Integrate various software components and third-party applications with the existing infrastructure using APIs and other integration methods.</li><li>Code Quality: Write clean, maintainable, and well-documented code, following best practices and industry standards.</li><li>Testing and Debugging: Conduct thorough testing and debugging to ensure the delivery of high-quality software solutions.</li><li>Technical Leadership: Provide technical guidance and mentorship to junior developers, fostering a collaborative and innovative development environment.</li><li>Project Collaboration: Collaborate with cross-functional teams, including product managers, designers, and QA, to define requirements, plan projects, and deliver solutions that meet business needs.</li><li>Continuous Improvement: Stay up-to-date with emerging technologies, industry trends, and best practices to continuously improve software development processes and methodologies.</li><li>Agile Development: Participate in Agile development processes, including sprint planning, stand-ups, and retrospectives, to ensure timely delivery of projects.</li></ul>Qualifications:<ul><li>Education: Bachelor’s degree in Computer Science, Information Technology, or a related field; Master’s degree is a plus.</li><li>Experience:</li><li>7+ years of professional experience in software development, with a focus on Microservices, API development, and full-stack engineering.</li><li>Proven experience in designing and implementing microservices architecture in a production environment.</li><li>Strong experience with both front-end and back-end development, including proficiency in modern JavaScript frameworks (e.g., React, Angular, or Vue.js) and server-side technologies (e.g., Node.js, Java, or Python).</li><li>Solid understanding of database technologies, including both SQL and NoSQL databases.</li><li>Experience with cloud platforms (e.g., AWS, Azure, or Google Cloud) and containerization tools like Docker and Kubernetes.</li><li>Technical Skills:</li><li>Proficiency in RESTful API design and development.</li><li>Strong knowledge of software development principles, including object-oriented programming, design patterns, and data structures.</li><li>Familiarity with CI/CD pipelines and DevOps practices.</li><li>Experience with version control systems, such as Git.</li><li>Understanding of secure coding practices and application security principles.</li><li>Soft Skills:</li><li>Excellent problem-solving and analytical skills.</li><li>Strong communication skills, with the ability to effectively collaborate with both technical and non-technical stakeholders.</li><li>Leadership abilities, with experience mentoring and guiding junior team members.</li></ul>

Business Analyst 4Richmond, VAOnsite Business Analyst - Finance Experience Required<ul><li>Support of the fiscal, budgetary, and accounting operations for AMD. Plans, organizes, develops, maintains, and coordinates the development and implementation of fiscal operations, processes, policies and procedures for the program.</li><li>Support development of the annual agency's budget and reviews statewide expenditure and spend plan data.</li><li>Will perform monthly program/project expense analysis and assist with the review and analysis of MN expenditures and budgets. </li><li>Will be responsible for supporting executive decision making and presenting the financial aspects of projects to senior management. Requires understanding budgeting and accounting with the ability to analyze complex business problems and recommend solutions.</li><li>Participate in the development and maintenance of performance metrics, measurements, methods, and targets to promote financial accountability, and assist in identifying performance improvement opportunities. </li><li>Provide good customer service to internal team members & external customers, comprehensive analytical skills (Excel, MS Word), being an effective communicator, as well as being self-motivated and showing initiative while accomplishing the task at hand.</li></ul> Skills Required / Desired Experience Extensive experience in the use of the computers and software (Microsoft 365) applications. Excel pivot tables, complex spreadsheets, etc. Required 5 YearsExtensive in financial analysis and forecasting Required 5 YearsCustomer service to broad audiences, professionals, vendors, team members and executive staffRequired 5 YearsGeneral knowledge of accounting practices and financial management Required 5 YearsExperience in performance metrics, measurements, methods and targets to promote financial accountability Desired 3 YearsCommonwealth or Federal financial knowledge and applied experience Desired 1 YearExperience with Cardinal Financial system Desired 1 Year

Ark Solutions, Inc. Interview Questions

Ark Solutions, Inc. Interview Guides

Ark Solutions, Inc. Interview Questions

Ark Solutions, Inc. Salaries by Position

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