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Distributed Solutions, Inc. Interview Questions

A/B Testing

Algorithms

Analytics

Machine Learning

Probability

Product Metrics

Python

Statistics

Distributed Solutions, Inc. Interview Guides

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?

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?

<h3>Job Description</h3><div>Job Description<div>Distributed Solutions, Inc. (DSI) is a fast-growing company seeking a Business Analyst responsible for working closely with DSI’s Customer Engagement project teams to provide the customer with business analysis expertise and project support in a tactical capacity, evaluating internal and external client requirements and implementing practical solutions on time.  The selected candidate will gather, analyze, and document business requirements (i.e., user stories using interviews, document analysis, requirements workshops, storyboards, surveys, site visits, business process descriptions, use cases, scenarios, event lists, business analysis, competitive product analysis, task, and workflow analysis, and/or viewpoints) and functional requirements (decompose high-level business and user requirements into functional requirements). The analyst will apply these functional & business requirements in collaboration with peers on the project to deliver product enhancements, validate business processes, test configurations, and resolve end-user questions.   Job Requirements: <ul><li>You must have an Active TS/SCI with a polygraph; all others need not apply.</li><li>Ability to define and document customer business processes and functions, including business process diagrams, data maps, test plans, and test scripts.</li><li>Ability to perform process re-engineering.</li><li>Consult with project team members and customer stakeholders to identify, define, and document business needs and objectives, current operational procedures, and challenges related to the business functions, such as those supporting the Federal Acquisition Lifecycle.</li><li>Collaborate with the DSI project manager, technical analysts, and customer end-users to analyze, design, configure, test, and maintain DSI's AEON platform to ensure desired operational performance.</li><li>Track and document changes for functional and business specifications; write detailed, universally understood procedures for testing use cases, knowledge capture, and training purposes.</li><li>Perform quality assurance review and validation of internal and external delivery deliverables.</li><li>Achieve proficiency in all significant DSI products, including the AEON software suite, through internal staffing training, self-guided tutorials, and daily exposure to individual product feature sets.</li><li>Provide support for various meetings, demonstrations, and program activities.</li><li>Test projects by business and functional design, following best practices for quality assurance.</li><li>Recorded and tracked defects uncovered during test execution and assisted in defect resolution (troubleshooting and researching).</li><li>Provide input during requirements development, test case development, and review.</li><li>Comprehension of change management processes.</li><li>Provide on-site, shoulder-to-shoulder user support to utilize the implemented solution effectively.</li><li>Answer functional user questions related to understanding the business process implementation and utilizing the solution for user work.</li><li>Record/document and report any issues reported by end users with the implemented business process or software following the appropriate reporting processes.</li><li>Other duties as assigned. </li></ul> Required Experience: <ul><li> 5+ years prior business analyst experience.</li><li>Ability to work in a team-oriented environment for a matrixed organization.</li><li>Strong knowledge of productivity tools like Microsoft Office (Word, Excel, Outlook).</li><li>Experience with Power BI or strong Pivot Table experience. </li><li>Experience with Agile and SCRUM processes and methodologies.</li><li>Knowledge of software development life cycle (SDLC) practices, principles, and techniques as they apply to Agile development.</li><li>Excellent verbal and written communication skills, proven ability to listen and relate to customers.</li><li>Ability to effectively collaborate with internal and external customers.</li><li>Demonstrated analytical and problem-solving capabilities.</li><li>Proven ability to communicate technical details to a non-technical audience.</li><li>Excellent organizational and time management skills.</li><li>Strong team players are always willing to help other team members. </li></ul>Desired Experience: <ul><li>Bachelor’s degree or relevant experience.</li><li>Experience with Tableau or Cognos.</li><li>Knowledge of the Federal Acquisition Lifecycle or commercial contracting.</li><li>Knowledge of Federal financial systems or commercial accounting.</li><li>Ability to develop training materials and conduct end-user training sessions.</li><li>Experience with Federal government contracting and/or program office organization's business processes. </li></ul>Distributed Solutions, Inc. is a leading provider of knowledge-driven software solutions and subject-matter consulting services that address the needs of acquisition professionals. We offer a fun, casual, collaborative working environment for individuals interested in conquering technology barriers, learning by doing, and taking pride in developing superior software manufactured in the USA.  Distributed Solutions, Inc. is an Equal Employment Opportunity (EEO) employer. The company's policy is to provide equal employment opportunities to all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veteran or disabled status, or genetic information.  Powered by JazzHR5KD3JpuLQm</div></div>

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

Distributed Solutions, Inc. Interview Questions

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Distributed Solutions, Inc. Interview Questions

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