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Numerica Corporation 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 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

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?

Numerica Corporation Salaries by Position

Numerica's Research Scientists excel at developing state-of-the art algorithms and software that solve scientific problems with real-world applications. Working in small innovative teams, our research scientists build solutions that make a difference. Our research endeavors don't end once we've written a journal or conference paper describing our technology; rather, our work is complete when our technology has been deployed in mission-critical systems and our customers within government and industry are successful. As science fiction writer Arthur Clarke wrote, "Any sufficiently advanced technology is indistinguishable from magic." Therefore, Numerica is seeking talented "magicians" to join in our common struggle of expanding the boundary of what's possible. What You Will Do: <ul><li>Contribute to the direction of a talented small team with your expertise and ideas;</li><li>Create mathematically principled solutions to some of the world's most challenging information science problems;</li><li>Prototype state-of-the-art algorithms in an agile development environment;</li><li>Implement high-performance software spanning the spectrum from tactical systems to web applications;</li><li>Use high-fidelity modeling and simulation environments, innovative analysis tools, and flexible compute clusters to quantify the benefit of our technology;</li><li>Engage with our customers, to ensure successful outcomes for their mission-critical needs;</li><li>Help your colleagues and customers understand what you're doing and why.</li></ul> RECOMMENDED BACKGROUND AND EXPERIENCE <ul><li>A Research Scientist at Numerica should possess an M.S. or Ph.D. in Applied or Computational Mathematics, Electrical Engineering, Computer Science, Controls and Dynamical Systems, Aerospace Engineering, Statistics and Probability, or a related field.</li><li>A Research Scientist should have a record of academic excellence, including demonstrated experience in most of the following areas:<ul><li>Applied Mathematics: differential equations, linear algebra, numerical analysis, and continuous or discrete optimization;</li><li>Engineering: controls, estimation theory, digital signal processing, and machine learning;</li><li>Scientific Computing: software design, algorithm implementation, and software analysis, testing, and optimization;</li><li>Probability: statistics and random processes.</li></ul></li><li>A Research Scientist should have effective written and verbal communication skills, with the demonstrated ability to convey salient details about advanced technology in a compelling manner to both experts and non-experts alike.</li></ul> U.S. CITIZENSHIP REQUIRED Due to the nature of the work performed at Numerica, all applicants must be capable of obtaining a U.S. Security Clearance. At a minimum, this requires that a candidate be a U.S. citizen with a personal history indicating trustworthiness, reliability, and sound judgment (e.g., clean criminal record, no use of illegal drugs, etc.). Salary range: $80,900-$164,300 estimated annual base salary plus incentives Numerica is an equal opportunity employer. No person shall be discriminated against in any condition of employment because of race, color, national origin, religion, sex, sexual orientation, gender identity, age, disability, genetic information, veteran status or any other status protected by law.

Numericans excel at developing state-of-the art algorithms, software, and sensor systems that solve scientific problems with real-world defense applications. Working in small innovative teams, our scientists and engineers build solutions that make a difference. Our work is complete when our technology has been deployed in mission-critical systems, our customers are successful, and Americans can rest assured knowing our country's interests are being defended at home and abroad. As science fiction writer Arthur Clarke wrote, "Any sufficiently advanced technology is indistinguishable from magic." Numerica is seeking talented "magicians" to join in our mission to expand the boundary of what's possible for our customers and the nation. As an early member of a new team being established in the Huntsville area, an ideal candidate will be growth-minded, with strong leadership skills and the willingness to be the beginning of something amazing for the larger Numerica team. What You Will Do<ul><li>Use your expertise and ideas to help shape the direction of a dynamic, mission-oriented, defense software development team.</li><li>Collaborate with fellow engineers and scientists to build and deploy high-performance software supporting tactical and strategic integrated air and missile defense systems.</li><li>Help architect and implement cutting-edge distributed software systems that deploy sophisticated algorithms in no-fail environments.</li><li>Engage with our customers to understand their needs, support development planning, and ensure successful outcomes for their missions.</li><li>Effectively communicate with both colleagues and customers, so they understand what you're doing and why.</li></ul> Recommended Background and Experience<ul><li>B.S. or advanced degree in Computer Science, Computer Engineering, Aerospace Engineering, Electrical Engineering, Physics, or a closely related field, with a record of academic excellence.</li><li>8+ years of work experience in the software engineering field, including demonstrated experience with:<ul><li>Software development using multiple languages, such as Python and C/C++ </li><li>System integration and testing of large distributed systems</li><li>API development and familiarity with network protocols</li><li>Source control management tools, such as Git</li><li>Sprint-based development and use of DevOps tools and mentality</li></ul></li><li>Experience and familiarity with the following:<ul><li>Sensor fusion and target tracking</li><li>Air and missile defense systems (developing, operating, testing, training)</li><li>US Army IBCS program</li><li>US DoD Program Management Process</li></ul></li><li>Effective written and verbal communication skills, with the ability to convey salient details about advanced technology in a compelling manner to both experts and non-experts alike.</li></ul> Compensation Numerica offers competitive compensation packages. As a member of our senior technical team, you will enjoy a competitive base salary, a strong cash bonus program with a history of consistent payout, and participation in the company's equity sharing program (Restricted Stock Unit plan). Numerica's restricted stock plan, whereby employees in leadership roles can earn equity in the company, fosters an entrepreneurial culture by giving employees "skin in the game" at a thriving small business. U.S. Citizenship Required Due to the nature of the work performed at Numerica, all applicants must be capable of obtaining a U.S. Security Clearance. At a minimum, this requires that a candidate be a U.S. citizen with a personal history indicating trustworthiness, reliability, and sound judgment (e.g., clean criminal record, no use of illegal drugs, etc.).

<h3>Job Description</h3><div>Job Description<div>Numerica's Research Scientists excel at developing state-of-the art algorithms and software that solve scientific problems with real-world applications. Working in small innovative teams, our research scientists build solutions that make a difference. Our research endeavors don’t end once we’ve written a journal or conference paper describing our technology; rather, our work is complete when our technology has been deployed in mission-critical systems and our customers within government and industry are successful. As science fiction writer Arthur Clarke wrote, “Any sufficiently advanced technology is indistinguishable from magic.” Therefore, Numerica is seeking talented “magicians” to join in our common struggle of expanding the boundary of what’s possible.What You Will Do:<ul><li>Contribute to the direction of a talented small team with your expertise and ideas;</li><li>Create mathematically principled solutions to some of the world’s most challenging information science problems;</li><li>Prototype state-of-the-art algorithms in an agile development environment;</li><li>Implement high-performance software spanning the spectrum from tactical systems to web applications;</li><li>Use high-fidelity modeling and simulation environments, innovative analysis tools, and flexible compute clusters to quantify the benefit of our technology;</li><li>Engage with our customers, to ensure successful outcomes for their mission-critical needs;</li><li>Help your colleagues and customers understand what you’re doing and why.</li></ul>RECOMMENDED BACKGROUND AND EXPERIENCE<ul><li>A Research Scientist at Numerica should possess an M.S. or Ph.D. in Applied or Computational Mathematics, Electrical Engineering, Computer Science, Controls and Dynamical Systems, Aerospace Engineering, Statistics and Probability, or a related field.</li><li>A Research Scientist should have a record of academic excellence, including demonstrated experience in most of the following areas:<ul><li>Applied Mathematics: differential equations, linear algebra, numerical analysis, and continuous or discrete optimization;</li><li>Engineering: controls, estimation theory, digital signal processing, and machine learning;</li><li>Scientific Computing: software design, algorithm implementation, and software analysis, testing, and optimization;</li><li>Probability: statistics and random processes.</li></ul></li><li>A Research Scientist should have effective written and verbal communication skills, with the demonstrated ability to convey salient details about advanced technology in a compelling manner to both experts and non-experts alike.​</li></ul>U.S. CITIZENSHIP REQUIREDDue to the nature of the work performed at Numerica, all applicants must be capable of obtaining a U.S. Security Clearance. At a minimum, this requires that a candidate be a U.S. citizen with a personal history indicating trustworthiness, reliability, and sound judgment (e.g., clean criminal record, no use of illegal drugs, etc.).Salary range: $80,900-$164,300 estimated annual base salary plus incentivesNumerica is an equal opportunity employer. No person shall be discriminated against in any condition of employment because of race, color, national origin, religion, sex, sexual orientation, gender identity, age, disability, genetic information, veteran status or any other status protected by law.Powered by JazzHRUSbWAOqTQJ</div></div>

Numerica Corporation Interview Questions

Numerica Corporation Interview Guides

Numerica Corporation Interview Questions

Numerica Corporation Salaries by Position

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