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Harvey Nash Group Interview Questions

A/B Testing

Algorithms

Analytics

Machine Learning

Probability

Product Metrics

Python

Statistics

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Suppose there exists a new airline named Jetco that flies domestically across North America. Jetco recently had a study commissioned that tested the boarding time of every airline, and it came out that Jetco had the fastest average boarding times of any airline.

What factors could have biased this result, and what would you look into?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

Boarding Times Bias

A new airline came out as the fastest average boarding times compared to other airlines.  What factors could have biased this result and what would you look into?

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

A/B Testing & Experimentation

We are looking for a Data Engineer in Austin, TX (fully remote - MUST work CST hours). Job Title: Data EngineerLocation: Austin, TX (fully remote - MUST work CST hours)Contract: 12 MonthsHourly Rate: $75- $82 per hour (only on W2) Additional Notes: Fully remote - MUST work CST hours SQL, Python, DBT, Utilize geospatial data tools (PostGIS, ArcGIS/ArcPy, QGIS, GeoPandas, etc.) to optimize and normalize spatial data storage, run spatial queries and processes to power analysis and data products Design, create, refine, and maintain data processes and pipelines used for modeling, analysis, and reporting using SQL (ideally Snowflake and PostgreSQL), Python and pipeline and transformation tools like Airflow and dbt • Conduct detailed data research on internal and external geospatial data (POI, geocoding, map layers, geometrics shapes), identify changes over time and maintain geospatial data (shape files, polygons and metadata)• Operationalize data products with detailed documentation, automated data quality checks and change alerts• Support data access through various sharing platforms, including dashboard tools• Troubleshoot failures in data processes, pipelines, and products• Communicate and educate consumers on data access and usage, managing transparency in metric and logic definitions• Collaborate with other data scientists, analysts, and engineers to build full-service data solutions• Work with cross-functional business partners and vendors to acquire and transform raw data sources• Provide frequent updates to the team on progress and status of planned work About us:Harvey Nash is a national, full-service talent management firm specializing in technology positions. Our company was founded with a mission to serve as the talent partner of choice for the information technology industry. Our company vision has led us to incredible growth and success in a relatively short period of time and continues to guide us today. We are committed to operating with the highest possible standards of honesty, integrity, and a passionate commitment to our clients, consultants, and employees. We are part of Nash Squared Group, a global professional services organization with over forty offices worldwide. For more information, please visit us at <a>https://www.harveynashusa.com/</a>Harvey Nash will provide benefits please review: <a>2025 Benefits -- Corporate</a> Regards,Dinesh SomaRecruiting Lead

We are looking for a medium to senior Java developer to join the Observability and Analytics Cluster within the DevOps Engineering Services organization. The focus of this role is backend engineering with strong expertise in Kafka, Spring Boot, Kubernetes, and Helm. You will contribute to the evolution of our global Service Observability Platform by developing scalable services and data pipelines used across the organization. As a Java engineer in this platform team, you will design, build, and maintain backend services that support high-volume telemetry workloads. You will collaborate with delivery teams, SRE engineers, architects, and platform owners across different time zones, driving engineering excellence and contributing to the platform’s stability, performance, and resiliency. Key responsibilities include designing and implementing Java microservices with Spring Boot, building and operating components based on the Kafka ecosystem such as Kafka Streams, KSQLDB, and Kafka Connect, deploying and operating applications in Kubernetes or OpenShift using Helm, and improving the capabilities of the Observability Platform. You will mentor junior engineers, participate in roadmap discussions, and troubleshoot complex distributed systems, contributing to improved reliability and operational excellence. Required experience includes medium to senior-level expertise in Java backend development, strong Spring Boot knowledge, hands-on experience with Kafka (including Kafka Streams, KSQLDB, and Kafka Connect), practical experience deploying applications on Kubernetes with Helm, familiarity with CI/CD pipelines using Jenkins and Git, solid containerization experience with Docker, and strong problem-solving skills related to distributed systems. You should also have experience operating within large on-premises infrastructures and be comfortable collaborating with remote teams. Additional desirable skills include familiarity with the Elastic Stack (Elasticsearch, Kibana, Logstash, Elastic Agent, APM, ML, SIEM), knowledge of the OpenTelemetry standard, understanding of data engineering or ETL concepts, basic understanding of UML or C4 modeling, and foundational knowledge of machine learning concepts. We offer a collaborative and inclusive environment, opportunities to deepen technical expertise in distributed systems and cloud-native engineering, and the chance to work on a mission-critical platform while contributing to high-impact projects. Joining this team means playing a key role in the ongoing modernization and evolution of our observability capabilities while growing your career in a dynamic and supportive environment.

A Sr. Business Analyst in our Data Intelligence Lane delivers projects that include data integrations, enterprise reporting and data warehousing. Essential Job DutiesDesign IT solutions in the data intelligence space to meet the business strategic goals by eliciting requirements from product managers, product directors, product owners, UX teammates, business SMEs, development and QA leads, and executive leadership.Create and update requirements artifacts such as use cases, screen layouts, process flows, functional and non-functional requirements, and other design artifacts as needed. Responsible for ensuring each artifact complies with quality standards set out by leadership, and for conducting and facilitating requirements review sessions to ensure understanding across business and IT groups. Responsible for maintaining those requirements through the life of the project and raising awareness with mitigating strategies when issues arise that may impact budget or timelines.Lead design sessions for the purpose of collecting and defining the business and functional requirements required to properly design a product.Lead and facilitate interactions between clinical teams, business system end-users and technical teams, such as requirement gathering and crafting sessions, solution design sessions, User Acceptance Testing (UAT), post-deployment feedback sessions, and status meetings.Act as a liaison between the delivery teams that are engaged in implementing the solution and the business partners that will be using the solution, as well as interact daily with development engineers and QA analysts.Provide additional leadership to projects that are extra-sensitive or highly complex by assisting in routing work and filling in gaps where needed.Review and provide feedback for training materials and product communications developed by the launch and training teams. Conduct train-the-trainer and demo sessions as needed for trainers, helpdesk/support teams, and business partners.Support production deployments by ensuring smooth delivery with communication to product management and product owners in the event of any deployment issues. Conduct validation on deployed functionality to ensure everything is working as expected immediately after a production deployment, and coordinate business partner validation of deployed functionality during a production release.Coach other BAs on proper approach to crafting and assembling requirements documentation, provide feedback via peer reviews, and act as a resource for other BAs in the event the manager of the team is unavailable.Other duties as assigned. Skills: Strongly skilled in the process of requirements elicitation, investigation, and ability to apply critical thinking in a high-pressure, fast-paced environment.Should be able to grasp complex clinical and business requirements and processes and document them effectively.Strong analytical thinker with the ability to conceptualize a system in terms of both data/object model and application flows.A working knowledge of SQL for data profiling and other analytical-based purposes.Demonstrated experience with Waterfall and Agile Methodologies for software development.Exceptionally skilled in communicating in the English language, both verbally and in writing.Exceptionally skilled in coordinating and facilitating meetings, both face-to-face and with remote attendees, with demonstrated ability to clearly state objectives and accomplish meeting objectives.Exceptionally skilled in coordinating sensitive conversations amongst stakeholders with differing viewpoints, and ability to bring those groups into a commonly-understood alignment.Experience with healthcare information systems such as electronic medical records, revenue cycle, and other healthcare-related operational systems.Experience writing all types of requirements for a software application Solid understanding of Software Development Lifecycle using iterative methodologies.Demonstrated leadership and coaching skills, with supervisory experience preferred

Davita digital product team plays a key role in powering our kidney care platform, and we’re growing! We’re looking for a Product Manager to define vision, strategy, and OKRs for key product areas and drive outcomes that solve real business problems. You’ll work closely with engineering, design, and stakeholders to deliver impactful digital solutions across multiple applications and user groups. Key ResponsibilitiesExecution & Delivery (45%)<ul><li>Lead product discovery through delivery.</li><li>Collaborate with business partners, designers, engineers, and users to meet business goals.</li><li>Conduct story mapping, manage cross-team dependencies, and support roadmap and sprint planning.</li><li>Ensure compliance with legal, security, and risk requirements.</li><li>Support creation of user-facing communications on new features.</li></ul> Discovery & Strategy (30%)<ul><li>Partner with product leadership on product vision and strategy.</li><li>Work with engineering and UX to uncover user needs and validate concepts through testing.</li><li>Conduct user interviews/shadowing and collaborate with clinical, operations, and business teams.</li><li>Understand business problems and develop user-centered solutions.</li></ul> Data-Driven Decision Making (15%)<ul><li>Define and track OKRs.</li><li>Use product analytics to form hypotheses, prioritize features, and monitor performance.</li><li>Align feature development to measurable outcomes.</li></ul> Other Duties (10%) Requirements<ul><li>Bachelor’s Degree required.</li><li>4–6 years of product management experience in an agile, digital environment.</li><li>Strong problem-solving, communication, organization, and relationship-building skills.</li><li>Ability to manage multiple priorities, adapt to change, and learn new domains quickly.</li><li>Preferred: Health tech experience, 0–1 product development, writing user stories, or experience with EHRs, nephrology, or renal care.</li></ul> Additional Details<ul><li>Travel: Up to 25%</li><li>Schedule: Occasional nights/weekends</li><li>Work Environment: Standard office, moderate noise</li><li>Physical Requirements: Ability to lift 5–50 lbs; general mobility; manual dexterity for computer use</li><li>ADA: Reasonable accommodations provided</li></ul>

Harvey Nash USA has been engaged to find a talented Senior Business Analyst for an enterprise State Client. A highly experienced Business Analyst (BA) consultant with specialized expertise in Workers’ Compensation insurance, policy or claims -driven projects, and enterprise-level business analysis, as well as the proven ability to mentor, coach, and develop other BAs within the Business Analyst Resource Center (BARC). The consultant will split their time between direct project work and structured BA capability development, with 50% of duties dedicated to coaching, mentoring and/or recommendations and development of training materials. Job Title: Senior Business Analyst - Workers’ Compensation insuranceLocation: Pleasanton, CA Duration: 12+ Months ContractHybrid/Remote: Remote Requirement: • Minimum 10 years’ experience as a Business Analyst, with at least 5 years in Workers’ Compensation insurance projects.• Demonstrated experience in policy or claims -driven initiatives and regulatory interpretation.• Proven track record of mentoring and coaching business analysts at the enterprise level.• Strong facilitation, communication, and stakeholder engagement skills.• Expertise in business process modeling, requirements documentation, and solution design. Technical Knowledge and Skills• Proficient in elicitation and documentation of software business requirements.• Ability and knowledge of software testing, development of test case, test scripts, logging defects and facilitating UAT efforts

We are seeking a Business Analyst to lead the selection and implementation of a new e-commerce platform for our upcoming e-shop. The ideal candidate will analyse business needs, evaluate software solutions, and support the choice of a delivery partner. They will ensure seamless integration of the new solution with our existing IT stack and align it with business objectives. Responsibilities:<ul><li>Gather, analyze, and document business requirements for the new webshop, ensuring alignment with business goals and customer expectations.</li><li>Translate business needs into clear, actionable requirements for IT, enabling the successful delivery of the webshop.</li><li>Collaborate with stakeholders across digital marketing and IT to ensure all requirements are understood and prioritized.</li><li>Monitor and follow up on the IT development process, ensuring that deliverables meet the documented requirements and quality standards.</li><li>Support testing and validation of webshop functionalities, ensuring a seamless customer experience.</li><li>Proactively identify risks, issues, and improvement opportunities throughout the project lifecycle.</li><li>Report on progress, challenges, and outcomes to relevant stakeholders.</li></ul> Requirements & Qualifications: <ul><li>Education: Bachelor’s or Master’s degree in IT, Economics, Industrial/Business Engineering (or equivalent experience).</li><li>Experience: Minimum 10 years as Business Analyst (preferably in e-commerce, telecom, or digital projects).</li><li>Technical knowledge: </li><li>Agile tools (Confluence, Jira)</li><li>Familiarity with e-commerce platforms (Adobe Commerce, Shopify)</li><li>UX/UI tools (Figma)</li><li>Adobe Experience Manager (AEM)</li></ul> Must have skills: <ul><li>Proven expertise in vendor evaluation and managing integration projects with SaaS solution providers . </li><li>Strong analytical abilities combined with clear, impactful communication.</li><li>Strong stakeholder management skills, cross-functional teams collaboration and ability to structure complex concepts into structured, actionable insights.</li><li>Proactive, solution-oriented mindset and performance driven in a dynamic environment.</li><li>Excellent communication in Dutch and English</li></ul> Nice to have skills: <ul><li>Understanding of BSS (Netcracker) and ERP (Fusion) systems</li><li>Financial acumen to support cost-benefit analysis of proposed solutions.</li><li>Experience in telecom or large-scale e-commerce projects.</li><li>Knowledge of SEO/SCA and webshop performance optimization.</li></ul>

Software Developer - PHP (Laravel OR Symfony), React, AWS, Node Location - Camden (4 days onsite) Salary - up to £100,000 + Bonus + Stock I’m working with a leading digital gaming company that’s part of a global group listed on the NYSE. They’re passionate about delivering best-in-class products that create thrilling and engaging online experiences for their customers. They’re looking for a hands-on, detail-oriented Software Developer to join their growing team in Camden. You’ll be working in a fast-paced, collaborative environment focused on building scalable, reliable, and high-performance software that powers real-time user experiences in the iGaming space. This role would suit someone who loves solving complex problems, enjoys working across multiple technologies, and takes pride in writing clean, testable, high-quality code. What you’ll bring<ul><li>Strong commercial experience with PHP 8+ (Laravel or Symfony preferred)</li><li>Solid skills in JavaScript/TypeScript, Node.js (NestJS), and React.js</li><li>Experience with AWS services (Aurora, MSK Kafka, ECS, EMR)</li><li>Strong database skills (MySQL and other data paradigms)</li></ul> What’s on offer <ul><li>4 days onsite in a brand-new Camden office with modern facilities, gym, and yoga studio</li><li>Private healthcare and dental cover</li><li>Private pension, life assurance, and income protection</li><li>25 days holiday (increasing to 30 with service)</li><li>RSUs as part of an annual bonus</li><li>Employee Assistance Programme and well-being initiatives</li><li>Learning and development opportunities to support your career growth</li><li>Retail discounts and access to a green vehicle scheme</li></ul> If you’re looking to join a forward-thinking, high-performing team where you can make an impact and continue to grow technically, this could be a great fit.

Technical Business Analyst ???? Egham, Surrey UK (2 days a week onsites) ???? Circa £50,000 per annum + 10% bonus ⏱ 35 hours per week with flexible working between 8:00am and 6:00pm ???? Reporting to Business Analysis Manager A well established delivery management software provider is seeking an experienced Business Analyst to support ongoing technology projects that drive ecommerce delivery solutions. The team focuses on continuous improvement, collaboration and delivering high quality software in an Agile environment. Key Responsibilities<ul><li>Work with project teams and stakeholders to understand business needs and customer drivers</li><li>Elicit functional, process and system requirements including user interfaces and API integrations</li><li>Document requirements as user stories with clear acceptance criteria in Gherkin format</li><li>Create process diagrams and wireframes to support delivery</li><li>Present completed work in reviews with internal and external stakeholders</li><li>Support training and act as the link between development teams and clients</li><li>Analyse business challenges to support effective decision making</li><li>Use JIRA to define stories, derive tasks and monitor progress</li></ul> Experience and Skills Required<ul><li>Proven experience as a Business Analyst</li><li>Strong background in Agile delivery and the SCRUM framework</li><li>Ability to document requirements for digital platforms such as websites and internal systems</li><li>Confident communicator who can adapt to technical and non technical audiences</li><li>Strong facilitation and stakeholder management skills</li><li>Experience with API based systems and integration projects</li><li>Ability to analyse and document complex business processes</li></ul> Benefits Provided by the client (It's good!) <ul><li>Private health insurance plus dental cover</li><li>Annual performance bonus</li><li>23 days holiday rising to 26 with service plus UK bank holidays</li><li>Up to 10 percent employer pension contribution</li><li>Group Life Insurance and Income Protection</li><li>Employee Assistance Programme</li><li>Work life balance with flexible working and working from home</li><li>Professional development support including mentorship and tuition reimbursement</li><li>Regular social and wellbeing activities</li><li>Paid time off for physical or mental health</li><li>Environmental initiative contributing tree planting for each employee</li></ul>

???? Full Stack Developer – Birmingham Jewellery Quarter (Hybrid) Salary: Up to £32,000 DOE Harvey Nash are looking for a Junior Developer to join a growing agency in Birmingham City Centre. This is an exciting opportunity to work on innovative eCommerce projects and grow within a dynamic, award-winning environment. What you’ll do:<ul><li>Build and maintain Shopify-based websites</li><li>Develop bespoke functionality and apps</li><li>Collaborate with designers and marketers to deliver seamless user experiences</li><li>Work on a mix of front-end and back-end tasks, with opportunities to specialise</li></ul> Key Skills:✔ React Native & Shopify (core focus)✔ JavaScript, PHP, WordPress, React, AWS (nice to have) What we value most:✅ Personality, attitude, and culture fit✅ Ambition and willingness to learn✅ Adaptability over years of hardcore experience Working pattern:???? On-site 3–4 days/week the rest from home If you’re passionate about tech and eager to grow, we’d love to hear from you!

Business Analyst ???? Egham, Surrey UK (2 days a week onsites) ???? Circa £50,000 per annum + 10% bonus ⏱ 35 hours per week with flexible working ???? Reporting to Business Analysis Manager A well established delivery management software provider is seeking an experienced Business Analyst to support ongoing technology projects that drive ecommerce delivery solutions. The team focuses on continuous improvement, collaboration and delivering high quality software in an Agile environment. Key Responsibilities<ul><li>Work with project teams and stakeholders to understand business needs and customer drivers</li><li>Elicit functional, process and system requirements including user interfaces and API integrations</li><li>Document requirements as user stories with clear acceptance criteria in Gherkin format</li><li>Create process diagrams and wireframes to support delivery</li><li>Present completed work in reviews with internal and external stakeholders</li><li>Support training and act as the link between development teams and clients</li><li>Analyse business challenges to support effective decision making</li><li>Use JIRA to define stories, derive tasks and monitor progress</li></ul> Experience and Skills Required<ul><li>Proven experience as a Business Analyst</li><li>Strong background in Agile delivery and the SCRUM framework</li><li>Ability to document requirements for digital platforms such as websites and internal systems</li><li>Confident communicator who can adapt to technical and non technical audiences</li><li>Strong facilitation and stakeholder management skills</li><li>Experience with API based systems and integration projects</li><li>Ability to analyse and document complex business processes</li></ul> Beneficial <ul><li>Logistics sector experience</li><li>JIRA exposure</li></ul> Benefits Provided by the client (It's good!) <ul><li>Private health insurance plus dental cover</li><li>Annual performance bonus</li><li>23 days holiday rising to 26 with service plus UK bank holidays</li><li>Up to 10 percent employer pension contribution</li><li>Group Life Insurance and Income Protection</li><li>Employee Assistance Programme</li><li>Work life balance with flexible working and working from home</li><li>Professional development support including mentorship and tuition reimbursement</li><li>Regular social and wellbeing activities</li><li>Paid time off for physical or mental health</li><li>Environmental initiative contributing tree planting for each employee</li></ul>

Question	Topic	Difficulty	Ask Chance
Boarding Times Bias	Statistics	Medium	Very High
Hundreds of Hypotheses	Statistics	Medium	Very High
Random Bucketing	A/B Testing & Experimentation	Medium	Very High

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