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Russell Tobin 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?

Let’s say you work for a social media company that has just done a launch in a new city. Looking at weekly metrics, you see a slow decrease in the average number of comments per user from January to March in this city.

The company has been consistently growing new users in the city from January to March.

What are some reasons why the average number of comments per user would be decreasing and what metrics would you look into?

What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?

What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?

Decreasing Comments

How would you investigate a decline in the average number of comments per user?

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?

Backend Developer (Java) – 12-Month W2 ContractLocation: Onsite – Pleasanton, CAPay Rate: $55–$65/hour (Depending on Experience)Contract Type: W2 | 12 Months Russell Tobin is supporting a leading enterprise retailer in hiring a skilled Backend Developer for a long-term onsite contract in Pleasant, CA. This role is ideal for an experienced backend engineer with a strong background in Java, cloud technologies, microservices, and DevOps. Key Responsibilities<ul><li>Design, develop, and maintain backend services using Java and Spring Boot</li><li>Build and maintain RESTful APIs following best practices</li><li>Develop and support microservices-based architectures</li><li>Work with MongoDB and MySQL for data storage and retrieval</li><li>Implement event-driven solutions using Kafka or RabbitMQ</li><li>Deploy and manage containerized applications using Docker and Kubernetes (AKS or GKE)</li><li>Collaborate using DevOps tools such as GitHub, Jenkins, Chef, Puppet, or ArgoCD</li><li>Implement monitoring and alerting using Nagios, New Relic, GCP, or Splunk</li><li>Participate in Agile and Scrum ceremonies</li><li>Ensure adherence to SDLC and security compliance standards</li></ul> Required Qualifications<ul><li>7–10 years of total IT experience</li><li>6+ years of hands-on experience with Java, MongoDB, and MySQL</li><li>Strong hands-on experience with Java Spring Boot</li><li>Hands-on experience with API management and microservices development</li><li>Experience with public cloud platforms such as Azure or GCP</li><li>Hands-on experience with Kafka or RabbitMQ</li><li>Hands-on experience with Docker and Kubernetes (AKS or GKE)</li><li>Experience using DevOps tools including GitHub, Jenkins, Chef, Puppet, or ArgoCD</li><li>Experience with monitoring and alerting tools such as Nagios, New Relic, GCP, or Splunk</li><li>Strong understanding of RESTful API design principles</li><li>Strong knowledge of the Software Development Lifecycle, security compliance, Agile, and Scrum</li></ul> Soft Skills<ul><li>Inquisitive team player with an innovative mindset</li><li>Quick learner with strong adaptability to new technologies</li><li>Strong communication, collaboration, and problem-solving skills</li></ul> Russell Tobin offers eligible employee’s comprehensive healthcare coverage (medical, dental, and vision plans), supplemental coverage (accident insurance, critical illness insurance and hospital indemnity), 401(k)-retirement savings, life & disability insurance, an employee assistance program, legal support, auto, home insurance, pet insurance and employee discounts with preferred vendors.

Russell Tobin's client is hiring a Product Analyst - Digital Content in Columbus, OH Employment Type: ContractLocation: Hybrid (3 days Tue/Wed/Thu) - Columbus, OH43230Pay rate: $35-$38/hr Description:The Product Analyst is responsible for supporting the end-to-end delivery of complex digital products within a content-focused environment. This role partners closely with Product Owners, SMEs, development teams, and creative/merchandising stakeholders to ensure a best-in-class customer experience across digital channels. The ideal candidate brings strong Agile experience, digital or ecommerce knowledge, and the ability to work in a fast-paced, cross-functional environment. Responsibilities:<ul><li>Support product lifecycle activities from concept through delivery.</li><li>Partner with Product Owner to define and refine product features that align to business goals.</li><li>Gather requirements; write user stories and acceptance criteria.</li><li>Maintain awareness of industry trends to guide product roadmap decisions.</li><li>Identify product dependencies and impacts across digital platforms.</li><li>Act as Product Owner proxy as needed.</li><li>Coordinate and execute UAT with a focus on customer experience.</li><li>Train internal users on new features and functionality.</li><li>Manage and optimize 3rd-party solutions and tools.</li><li>Execute A/B tests and analyze results.</li><li>Prepare data for lower development environments.</li><li>Serve as point of contact for developers during requirement clarifications.</li><li>Analyze support issues to identify trends and improvement opportunities.</li><li>Participate in on-call rotations and defect triage to ensure platform stability.</li></ul> Requirements:<ul><li>Strong experience writing Agile user stories & acceptance criteria.</li><li>Ecommerce or digital product experience (retail preferred).</li><li>Ability to thrive in a fast-paced environment.</li><li>Excellent communication and cross-functional partnering skills.</li><li>Solid understanding of Agile frameworks and terminology.</li></ul> Nice to have:<ul><li>Agile product team environments</li><li>Working with creative, marketing, merchandising, or operational stakeholders</li><li>CMS, PIM, or other digital content tools (power user level a plus)</li><li>Digital merchandising, content setup, or creative production workflows</li><li>Change management or workflow-focused roles</li><li>Strong curiosity and problem-solving mindset</li></ul> Benefits that Russell Tobin offers:Russell Tobin offers eligible employees comprehensive healthcare coverage (medical, dental, and vision plans), supplemental coverage (accident insurance, critical illness insurance, and hospital indemnity), a 401(k)-retirement savings, life & disability insurance, an employee assistance program, identity theft protection, legal support, auto and home insurance, pet insurance, and employee discounts with some preferred vendors.

<h3>Job Description</h3><div>Job Description<div>Data Engineer/System EngineerMonroe, NC 28111Duration: 08+ MonthsPay rate: $35- 45/Hr. Job description: As an Engineer, you will have the opportunity to tap into your curiosity and collaborate with some of the most innovative professionals around the world. In this role, you will contribute to the continuous improvement of manufacturing systems by developing and deploying process automation, data management, and reporting solutions to enhance production awareness and operational performance. Key Responsibilities<ul><li>Drive understanding of operational performance by developing and maintaining production reporting and data analysis tools to ensure timely, accurate information for decision-making.</li><li>Lead projects to design, develop, and implement processes, procedures, and interfaces that enhance production awareness for final assemblies, sub-assemblies, and new products.</li><li>Collaborate with process engineering and technical support teams to implement new systems for equipment launches or process modifications, including defining specifications and functional requirements.</li><li>Maintain and execute process verification and validation procedures for automated assembly stations and related manufacturing systems.</li><li>Prepare and curate reports, technical documentation, and process validation records.</li><li>Support and troubleshoot failures, driving continuous improvement of existing systems and procedures.</li></ul> Required Qualifications<ul><li>Bachelor’s degree or higher in Engineering or Science from an accredited institution (Electrical, Systems, or Industrial Engineering preferred).</li><li>1–3 years of experience in manufacturing and/or assembly process development, evaluation, and support within private, public, government, or military sectors.</li><li>Demonstrated proficiency in Microsoft and data automation tools, including SQL, Power Apps, Visual Basic (VB), Power BI, Power Automate, SharePoint, Grafana, Workflow, and Snowflake.</li><li>Proven technical skills in layout design, data interface development, validation, root cause analysis, and general troubleshooting.</li><li>Demonstrated experience deploying data management solutions in production environments.</li></ul> Preferred Qualifications<ul><li>Effective project management skills, including successful delivery of validated systems with defined acceptance criteria.</li><li>Strong engineering and technical background, with knowledge of electrical principles, manufacturing test and assembly equipment, fixturing, testing software, pneumatic controls, PLCs, and I/O systems.</li><li>Familiarity with Minitab for capability measurement, process control, Six Sigma, and gauge R&R studies.</li><li>Lean Six Sigma Green Belt or Black Belt certification preferred.</li></ul> Soft Skills<ul><li>Strong organizational, analytical, and problem-solving skills.</li><li>Excellent interpersonal and communication abilities.</li><li>Self-motivated and proactive, with a focus on collaboration and continuous improvement.</li></ul> Benefits: Russell Tobin offers eligible employee’s comprehensive healthcare coverage (medical, dental, and vision plans), supplemental coverage (accident insurance, critical illness insurance and hospital indemnity), a 401(k)-retirement savings, life & disability insurance, an employee assistance program, identity theft protection, legal support, auto and home insurance, pet insurance, and employee discounts with some preferred vendors.   </div>Company Description<div>Russell Tobin is a leading minority-owned professional and technical recruitment and staffing advisory organization. We are comprised of specialized practices focusing on a variety of skill sets and industries. Having a depth and breadth of industry expertise, our subject matter experts are able to provide tailored and swift sourcing solutions to fulfill client hiring needs. In other words, we connect top talent with companies. We are the staffing arm of the Pride Global network, a minority-owned integrated human capital solutions firm, with additional offerings in vendor management, payroll programs, and business process optimization.</div></div><h3>Company Description</h3><div>Russell Tobin is a leading minority-owned professional and technical recruitment and staffing advisory organization. We are comprised of specialized practices focusing on a variety of skill sets and industries. Having a depth and breadth of industry expertise, our subject matter experts are able to provide tailored and swift sourcing solutions to fulfill client hiring needs. In other words, we connect top talent with companies. We are the staffing arm of the Pride Global network, a minority-owned integrated human capital solutions firm, with additional offerings in vendor management, payroll programs, and business process optimization.</div>

Job Description:Backend Developer (Java) - 12-Month W2 Contract Location: Onsite - Pleasanton, CA Pay Rate: $55-$65/hour (Depending on Experience) Contract Type: W2 12 Months Russell Tobin is supporting a leading enterprise retailer in hiring a skilled Backend Developer for a long-term onsite contract in Pleasant, CA. This role is ideal for an experienced backend engineer with a strong background in Java, cloud technologies, microservices, and DevOps. Key ResponsibilitiesDesign, develop, and maintain backend services using Java and Spring BootBuild and maintain RESTful APIs following best practicesDevelop and support microservices-based architecturesWork with MongoDB and MySQL for data storage and retrievalImplement event-driven solutions using Kafka or RabbitMQDeploy and manage containerized applications using Docker and Kubernetes (AKS or GKE)Collaborate using DevOps tools such as GitHub, Jenkins, Chef, Puppet, or ArgoCDImplement monitoring and alerting using Nagios, New Relic, GCP, or SplunkParticipate in Agile and Scrum ceremoniesEnsure adherence to SDLC and security compliance standards Required Qualifications7-10 years of total IT experience6years of hands-on experience with Java, MongoDB, and MySQLStrong hands-on experience with Java Spring BootHands-on experience with API management and microservices developmentExperience with public cloud platforms such as Azure or GCPHands-on experience with Kafka or RabbitMQHands-on experience with Docker and Kubernetes (AKS or GKE)Experience using DevOps tools including GitHub, Jenkins, Chef, Puppet, or ArgoCDExperience with monitoring and alerting tools such as Nagios, New Relic, GCP, or SplunkStrong understanding of RESTful API design principlesStrong knowledge of the Software Development Lifecycle, security compliance, Agile, and Scrum Soft SkillsInquisitive team player with an innovative mindsetQuick learner with strong adaptability to new technologiesStrong communication, collaboration, and problem-solving skills Russell Tobin offers eligible employee's comprehensive healthcare coverage (medical, dental, and vision plans), supplemental coverage (accident insurance, critical illness insurance and hospital indemnity), 401(k)-retirement savings, life &amp; disability insurance, an employee assistance program, legal support, auto, home insurance, pet insurance and employee discounts with preferred vendors.

<h3>Job Description</h3><div>Job Description<div>Marketing Business Analyst Location: Remote ( Must currently reside in the USA) Hours: Monday-Friday, Standard business hours Length: 6-month contract with possible extension Pay: $42.00 to $46.00 per hour About the Role: Our global healthcare client is seeking a Marketing Business Analyst to join their team. In this role, you will own key aspects of marketing reporting and manage campaign tracking and KPIs. Your insights will be critical in optimizing marketing strategies and ensuring accurate tracking of activities across multiple channels. Key Responsibilities:<ul><li>Develop and maintain marketing reports and dashboards.</li><li>Track and analyze marketing campaign performance and KPIs.</li><li>Provide actionable insights to improve marketing effectiveness.</li><li>Collaborate cross-functionally with Marketing, Sales, and Sales Operations teams.</li></ul>Qualifications:<ul><li>3+ years of marketing experience, preferably in the healthcare industry.</li><li>Strong analytical mindset with deep knowledge of marketing metrics.</li><li>Ability to interpret data and translate it into strategic recommendations.</li><li>Experience working with marketing and sales teams to deliver impactful reporting.</li><li>An associate's degree in marketing or communications is required.</li></ul> Russell Tobin is a leading minority-owned professional and technical recruitment and staffing advisory organization. Russell Tobin offers eligible employees comprehensive healthcare coverage (medical, dental, and vision plans), supplemental coverage (accident insurance, critical illness insurance and hospital indemnity), a 401(k)-retirement savings, life & disability insurance, an employee assistance program, identity theft protection, legal support, auto and home insurance, pet insurance, and employee discounts with some preferred vendors. #rta-zr JD-#E2EProf #LI-MD1</div>Company Description<div>We are committed to creating a workplace where all employees feel respected, supported, and empowered to do their best work. We foster a welcoming and innovative work environment that invests in you, providing access to an incredible breadth and depth of opportunities where you can grow your career and make a meaningful difference.</div></div><h3>Company Description</h3><div>We are committed to creating a workplace where all employees feel respected, supported, and empowered to do their best work. We foster a welcoming and innovative work environment that invests in you, providing access to an incredible breadth and depth of opportunities where you can grow your career and make a meaningful difference.</div>

Position: Data/Business AnalystLocation: New York, NY (Hybrid – 3 Days Onsite in a Week)Duration: 12 Months ContractPayrate: $ 60 – 65 per hour W2 Responsibilities:<ul><li>Collaborate with stakeholders to understand business needs and translate them into detailed technical specifications</li><li>Conduct analysis of business requirements and processes for data centric projects</li><li>Responsible for gathering and writing data requirements.</li><li>Translate business requirements into data mapping specifications</li><li>Develop a thorough understanding of the data definitions, domain values, data relationships, business rules, sources, and data integration used in the business domain</li><li>Troubleshoot data issues and work with data providers for resolution</li><li>Work with Data Engineers who will implement technical solutions to meet business requirements</li><li>Support developers with data subject expertise</li><li>Support phases of project development, from analysis and design to testing and implementation</li><li>Ensure that technology solutions meet the defined requirements.</li><li>Understanding of data quality and data governance</li><li>Provide ongoing support and training to business users on the new or revised systems. </li></ul> Required Skills:<ul><li>Strong knowledge of relational databases and data modeling</li><li>Strong SQL query skills</li><li>Experience with SDLC</li><li>Strong analytical, profiling and troubleshooting skills</li><li>Strong knowledge with Big Data/Hadoop platform</li><li>Strong business analysis and requirements definition skills</li><li>Strong stakeholder presentation skills</li><li>Solid organization and planning skills</li><li>At least 7 years' financial industry technology experience and knowledge of financial services data</li><li>Good verbal and written communication skills</li></ul> Desired Skills:<ul><li>Experience with data visualization software (e.g., Tableau, Power BI)</li><li>Experience with Agile project delivery</li><li>Experience with programming languages (e.g., Python)</li></ul> Russell Tobin offers eligible employee's comprehensive healthcare coverage (medical, dental, and vision plans), supplemental coverage (accident insurance, critical illness insurance and hospital indemnity), 401(k)-retirement savings, life & disability insurance, an employee assistance program, legal support, auto, home insurance, pet insurance and employee discounts with preferred vendors.

Technical Data / Business Analyst – Hybrid in NYC (3 Days Onsite)Contract Role via Russell TobinPay: $75–$90/hour (W2), depending on experienceSecond-round interview is onsite — no exceptions Russell Tobin is partnering with a leading global financial services firm to hire an experienced Technical Data / Business Analyst for a contract opportunity based in New York City. This role sits within a high-visibility Risk & Compliance technology group and offers a chance to work with top-tier professionals in a collaborative, innovation-driven environment. What We Offer<ul><li>Opportunity to work with leading professionals in a firm that values both individual contribution and teamwork</li><li>Modern, collaboration-focused office environment</li><li>Flexible hybrid schedule (3 days onsite per week)</li><li>Challenging, rewarding work with room for continuous learning and advancement</li><li>A technology-forward environment focused on solving complex business problems</li></ul> Team OverviewYou will join the Non-Financial Risk Technology (NFRT) organization, which provides operational controls, surveillance capabilities, and technology solutions to strengthen enterprise resilience. The team supports critical business functions including business continuity, records management, due diligence, and compliance monitoring.This specific role is aligned with the Wealth Management Monitoring Department, supporting Risk & Compliance teams with tools and applications used to monitor Financial Advisor adherence to firm policies. Position OverviewThe Technical Data / Business Analyst will play a key role in business analysis, project management, and data analysis efforts related to model development, requirements documentation, UAT, and product support. The ideal candidate is analytical, detail-oriented, proactive, and thrives in a fast-paced, team-oriented environment. Key Responsibilities<ul><li>Elicit, analyze, and create business requirements documentation (Agile user stories, proof-of-concept models, supporting documentation)</li><li>Analyze datasets to identify gaps and coordinate with cross-functional teams to resolve issues</li><li>Work closely with development teams to ensure technical solutions meet business expectations</li><li>Conduct Behavior-Driven Development (BDD), and write/execute User Acceptance Testing (UAT) plans</li><li>Create and manage project plans; escalate risks and delays as needed</li><li>Lead cross-functional initiatives, manage stakeholder communication, and oversee project risks</li><li>Provide mentorship to junior team members</li></ul> Required Qualifications<ul><li>Bachelor’s degree in Computer Science or related field</li><li>8+ years of experience as a Business Analyst in global organizations</li><li>Strong Data Analysis skills with hands-on SQL and relational database experience</li><li>Solid understanding of software development lifecycle (SDLC) and Agile methodologies</li><li>Excellent written and verbal communication skills</li><li>Ability to collaborate across global IT and business teams</li><li>Self-driven, creative problem solver capable of owning deliverables</li><li>Comfortable in fast-paced, high-pressure environments</li><li>Strong customer service orientation and ability to navigate complex situations</li><li>Background in trade lifecycles and asset classes (Equities, Fixed Income, Options, Futures)</li><li>Knowledge of compliance surveillance platforms such as Actimize, MANTAS, SunGard, SMARTS, and exposure to models (wash trades, spoofing, insider trading, etc.)</li></ul> Desired Skills<ul><li>Experience with IT Project Management and SDLC (Waterfall/Agile)</li><li>Experience with Behavior-Driven Development (BDD)</li><li>Background supporting medium-to-large scale development projects</li><li>Familiarity with trades data, positions data, and reference data</li></ul> About the ClientOur client is a leading global financial services institution and a market leader in investment banking, securities, investment management, and wealth management. They are committed to fostering an inclusive workplace where individuals from diverse backgrounds can thrive and grow. Russell Tobin / Pride Global offers eligible employees comprehensive healthcare coverage (medical, dental, and vision plans), supplemental coverage (accident insurance, critical illness insurance, and hospital indemnity), a 401(k) retirement savings plan, life & disability insurance, an employee assistance program, identity theft protection, legal support, auto and home insurance, pet insurance, and employee discounts with select vendors.

Job Title: Software EngineerLocation: Toronto, ON, CAN (On-Site)Duration: 06 MonthsPay Rate: C$80-C$90/hrClient: Public Sector Mandatory Skills:<ul><li>Siebel Public Sector 8.x (10+ years) with 2+ year experience with Oracle Siebel 20.0 and above</li><li>Siebel EAI, EIM (10+ years)</li><li>Siebel data model (10+ years): Data model extension</li><li>Siebel Remote (10+ years): Docking Object, Siebel Anywhere</li><li>Siebel OpenUI (7+ years): PM/PR Scripting</li><li>Siebel Smart Scripts and Task Based UI (5+ years)</li><li>Siebel e-Services ( 10+ years)</li><li>Oracle BI Publisher Report</li><li>Oracle Service Cloud (OSC)</li><li>Java™ Enterprise Edition (J2EE), Java™, JavaScript, jQuery, Jscript bootstrap framework, HTML 5, and CSS (5+ years)</li><li>REST web service (using JSON) (5+ years)</li></ul> If this opportunity matches your experience and career goals, please share your most updated resume for consideration. As a certified minority-owned business, Pride Global and its affiliates - including Russell Tobin, Pride Health, and Pride Now - are committed to creating a diverse environment and are proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, pregnancy, disability, age, veteran status, or other characteristics. Russell Tobin is a leading minority-owned professional and technical recruitment and staffing advisory organization. We are comprised of specialized practices focusing on a variety of skill sets and industries. Having a depth and breadth of industry expertise, our subject matter experts are able to provide tailored and swift sourcing solutions to fulfill client hiring needs. In other words, we connect top talent with companies. We are the staffing arm of the Pride Global network, a minority-owned integrated human capital solutions firm, with additional offerings in vendor management, payroll programs, and business process optimization.

Question	Topic	Difficulty	Ask Chance
Boarding Times Bias	Statistics	Medium	Very High
Decreasing Comments	Product Metrics	Easy	Very High
Hundreds of Hypotheses	Statistics	Medium	Very High

Russell Tobin Interview Questions

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