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The Voleon Group Interview Questions

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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

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?

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?

The Voleon Group Salaries by Position

Voleon is a technology company that applies state-of-the-art machine learning techniques to real-world problems in finance. For more than a decade, we have led our industry and worked at the frontier of applying machine learning to investment management. We have become a multibillion dollar asset manager, and we have ambitious goals for the future. Your colleagues will include internationally recognized experts in machine learning research as well as highly experienced technology and finance professionals. The people who shape our company come from other backgrounds, too, including concert music performance, humanitarian aid, opera singing, sports writing, and BMX racing. You will be part of a team that loves to succeed together. As a Senior DevOps Software Engineer, you will work with the software engineering, research, and systems teams to build the backbone of our business. This role is a means to make a difference: your role will serve as a force multiplier to maximize the productivity of the personnel, tools, and workflows that deliver software at Voleon. Responsibilities <ul> <ul><li>Support Voleon's build processes and continuous delivery tools, manage software development tools, and automate systems and operations </li><li>Work with stakeholders and product teams to create robust, high-performance software and systems architectures </li><li>Establish and promote best practices for software development and testing </li><li>Design and support implementations of production infrastructure and applications </li></ul> </ul>Requirements <ul> <ul><li>At least eight years of experience with software development or production systems support </li><li>Fluent with Python or at least two other software languages such as Groovy, R, or Go </li><li>Experience implementing and supporting continuous Integration platforms such as Jenkins, TeamCity, CircleCI, or Bamboo </li><li>Experience with automated software testing practices and tools </li><li>Extensive experience with common containerization tools such as Docker and Kubernetes </li><li>Power user of Git </li><li>Experience administering AWS or similar cloud infrastructure platforms via Terraform or other Infrastructure-as-Code tools </li><li>Familiar with Agile project management concepts </li><li>Ability to initiate and lead cross-team technical projects </li><li>Bachelor's degree in computer science or a related technical field </li></ul> </ul>Preferred Qualifications <ul> <ul><li>Experience with configuration automation tools, such as Ansible, Chef, and Puppet </li><li>Exposure to virtualization tools such as KVM </li><li>Experience configuring and using the ELK stack </li> <li>Experience with Prometheus, Grafana, or related tools </li><li>Experience with the Bazel build system </li><li>Background in Linux/Unix administration </li><li>Understanding of relational databases (primarily PostgreSQL) and NoSQL data management tools </li><li>Eagerness to work with diverse teams </li></ul> </ul> "Friends of Voleon" Candidate Referral Program If you have a great candidate in mind for this role and would like to have the potential to earn $7,500 if your referred candidate is successfully hired and employed by The Voleon Group, please use this form to submit your referral. For more details regarding eligibility, terms and conditions please make sure to review the Voleon Referral Bonus Program. Equal Opportunity Employer The Voleon Group is an Equal Opportunity employer. Applicants are considered without regard to race, color, religion, creed, national origin, age, sex, gender, marital status, sexual orientation and identity, genetic information, veteran status, citizenship, or any other factors prohibited by local, state, or federal law. Vaccination Requirement The Voleon Group has implemented a policy requiring all employees who will be entering our worksite, including new hires, to be fully vaccinated with the COVID-19 vaccine. This policy also applies to remote employees, as such employees will be asked to visit our offices from time to time. To the extent permitted by applicable law, proof of vaccination will be required as a condition of employment. This policy is part of Voleon's ongoing efforts to ensure the safety and well-being of our employees and community, and to support public health efforts.

The Voleon Group Interview Questions

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The Voleon Group Interview Questions

The Voleon Group Salaries by Position

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