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Rincon research corporation Interview Questions

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<p>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.</p>

<p>Write a query to randomly sample a row from this table.</p>

<p><strong>Input:</strong></p>

<p><code>big_table</code> table</p>

<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

<p>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.</p>

<p>How would you assess the validity of the result?</p>


Experiment Validity

<p>You are testing hundreds of hypotheses with many <em>t</em>-tests. What considerations should be made?</p>


<p>What is a key disadvantage of the F-test when compared to multiple t-tests?</p>

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?

Rincon research corporation Salaries by Position

<p>Why Join Rincon Research Corporation (RRC)? At Rincon Research Corporation, our primary business is innovating, developing, and fielding digital signal processing (DSP) products and services for the United States Defense and Intelligence Communities in support of national security. Rincon Research Corporation seeks a Software Engineer to create cutting edge software and cloud computing solutions to challenging national security and defense signal processing, geolocation, and communication problems. You will work in a multi-disciplinary R&D environment with similarly skilled and motivated electrical engineers, mathematicians, and computer scientists/engineers in a highly rewarding personal and professional environment. Come join the team that is creating cutting edge signal processing, geolocation, and communication systems for the future What are the primary responsibilities in the Advanced Software Engineer position? Core responsibilities include designing real-time cloud processing solutions, implementing advanced signal processing and geolocation algorithms with efficient software, testing with real data, and providing applications to front-line customer facilities. You create effective user interfaces and data visualization tools. A key responsibility is staying up-to-date with the latest technologies, tools, and methodologies and experimenting with new technologies to incorporate innovative solutions into RRC projects. RRC personnel can expect to work across all functional areas: systems engineering, development, integration and test, deployment and O&M, and experience the direct mission feedback from the customer and seeing your project provide real-world contributions that make a significant difference. You're encouraged and expected to propose things that you believe will improve the applications and frameworks you're working in. The ability to work unsupervised with minimal direction and the ability to self-start is a must. What required background will make you successful? Degree (Bachelor's, Master's, or PhD) in Computer Engineering or Computer Science Minimum 8 years' experience in software engineering-related discipline Proficient in modern software engineering practices for testability and readability Proficient in C++ and Python in LINUX environments Demonstrated ability to design software systems to ensure they achieve functionality, performance, scalability, and maintainability requirements Able and willing to obtain and maintain a TS/SCI security clearance - US citizenship required Additional desired background: DevOps and Cloud computing Experience (Gitlab, CI/CD, CVE mitigations, Docker, Kubernetes, PIP) Agile development processes Ability to mentor other engineers and provide technical advice to project leaders Current TS/SCI clearance Where is the position located? This position is located at our Tucson, AZ office. Remote work/telework is not available for this position. What benefits does RRC offer? 100% employer-paid premiums for family medical and dental insurance, employee life insurance, short-term and long-term disability (STD & LTD) Flexible reimbursement spending accounts for medical expense and dependent care Immediate participation and vesting in the company's Employee Stock Ownership Plan (ESOP) and 401(k) Plan Employer contributions to RRC's ESOP Employer matching contributions to the company's 401( k) Plan Employer discretionary contributions to the company's 401(k) Plan Compensatory (Comp) Time Education Reimbursement Flexible reimbursement spending accounts for medical expenses and dependent care Flexible work schedule, hours, and casual work environment Best-in-industry employee perks including meals, holiday parties, company picnics, service reimbursements, charitable donation matching, beverages, and more Rincon Research Corporation is an equal opportunity employer and considers qualified applicants for employment without regard to race, color, creed, religion, national origin, sex, sexual orientation, gender identity and expression, age, disability, veteran status, or any other protected factor.</p>

Rincon research corporation Interview Questions

Rincon research corporation Interview Guides

Rincon research corporation Interview Questions

Rincon research corporation Salaries by Position

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