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Axle Informatics 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 we have a table with an <code>id</code> and <code>name</code> fields. The table holds over 100 million rows and we want to sample a random row in the table without throttling the database.

Write a query to randomly sample a row from this table.

Input:

<code>big_table</code> table

<table>
<thead>
<tr>
<th>Columns</th>
<th>Type</th>
</tr>
</thead>

<tbody>
<tr>
<td><code>id</code></td>
<td>INTEGER</td>
</tr>

<tr>
<td><code>name</code></td>
<td>VARCHAR</td>
</tr>
</tbody>
</table>

Write a query to randomly sample a row from a big table.

Random SQL Sample

Axle Informatics Salaries by Position

Overview: Axle Informatics is a scientific research and information technology company that offers innovative computer services, informatics, and bioresearch solutions to research centers and healthcare organizations around the globe. With expertise in software engineering, bioinformatics, data science, molecular research, and program management, we focus on developing and applying technological tools and scientific techniques to empower the world of research. We work with some of the top research organizations and facilities in the country including multiple institutes at the National Institutes of Health (NIH). Axle is offering this postion hybrid. We are looking for Data Science Trainees to support portions of engineering based Data Science projects which Axle Informatics teams are working on currently at the National Center for Advancing Translational Science (NCATS) and the NIH. Responsibilities: <ul style="margin-top: 0; margin-bottom: 0;"><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Good understanding of mathematical and statistical concepts and a passion for learning data analytics is a must.</li><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Exemplary problem-solving skills and ability to take initiative</li><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Working knowledge of one of more of these technologies: Python, Django, Java, Docker, Unix, Jupyter Notebooks, Angular and/or NodeJS</li><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Strong analytical skills</li><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Strong data cleaning and preparation skills</li><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Superior attention to detail</li><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Excellent verbal and written communication skills</li><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Utilize open source and internally-developed modeling and analytics tools using real biomedical data</li><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Integrate internal data with external data sources to discover and implement actionable insights</li><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Design and craft rich data visualizations to communicate stories to customers and company leadership</li></ul> Qualifications: The ideal candidate will:<ul style="margin-top: 0; margin-bottom: 0;"><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Pursuing or have obtained a Bachelor's, Masters, PhD, or Post-Doc in Bioinformatics, Computer Science, St</li><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">satistics, Data Science, Engineering, or related STEM field</li><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Able to work 40 hours/week </li><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Ability to work independently, just as well as with general supervision</li><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">The ability to work in a team environment with changing priorities</li><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Skilled in a scripting languages (Python dramatically preferred) </li><li style="font-size: 9pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Skilled/Experienced in Data Extraction and handling</li><li style="font-size: 11pt; font-family: Roboto,sans-serif; color: #000000; font-weight: 400;" aria-level="1">Excellent oral and written communication skills in English</li></ul> The diversity of Axles employees is a tremendous asset. We are firmly committed to providing equal opportunity in all aspects of employment and will not tolerate any illegal discrimination or harassment based on age, race, gender, religion, national origin, disability, marital status, covered veteran status, sexual orientation, status with respect to public assistance, and other characteristics protected under state, federal, or local law and to deter those who aid, abet, or induce discrimination or coerce others to discriminate. Accessibility: If you need an accommodation as part of the employment process please contact: <a href="mailto:careers@axleinfo.com" target="_blank" rel="noopener">careers@axleinfo.com</a> Disclaimer: The above description is meant to illustrate the general nature of work and level of effort being performed by individuals assigned to this position or job description. This is not restricted as a complete list of all skills, responsibilities, duties, and/or assignments required. Individuals may be required to perform duties outside of their position, job description or responsibilities as needed.

Axle Informatics Interview Questions

Axle Informatics Interview Guides

Axle Informatics Interview Questions

Axle Informatics Salaries by Position

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