Prepare for and practice interview questions from Elevate.

Elevate Interview Questions

Elevate Interview Guides

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

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?

Elevate Salaries by Position

About Elevate Financial Services:Elevate Financial Services is a dynamic and forward-thinking financial solutions provider dedicated to transforming the financial landscape through innovation and technology. Committed to delivering inclusive and cutting-edge financial products, Elevate Financial Services strives to empower individuals and businesses globally. Location: BangaloreExperience: 5-8 years Responsibilities:<ul><li>Develop, maintain, and enhance data pipelines and workflows.</li><li>Work closely with the lead engineer to align efforts with broader project goals.</li><li>Participate in mentoring junior engineers and knowledge-sharing within the team.</li></ul> Must-Have Skills:<ul><li>Proficiency in Python, SQL, and strong understanding of Snowflake or other cloud platforms.</li><li>Expertise in data engineering practices and design patterns.</li><li>Strong problem-solving abilities and effective communication skills.</li></ul> Nice-to-Have Skills:<ul><li>Familiarity with ETL tools (e.g., Matillion, Informatica) and stream sets.</li><li>Experience with Azure DevOps and automation tools.</li></ul>

About Elevate Financial Services:Elevate Financial Services is a dynamic and forward-thinking financial solutions provider dedicated to transforming the financial landscape through innovation and technology. Committed to delivering inclusive and cutting-edge financial products, Elevate Financial Services strives to empower individuals and businesses globally. Location: BangaloreExperience: 8+ years Responsibilities:<ul><li>Act as a hands-on leader, coordinating efforts across data engineering projects and directly contributing with hands-on development.</li><li>Collaborate with the analytics team to ensure smooth delivery and alignment with business needs using Kanban workflows.</li><li>Mentor team members and ensure the application of best practices and design patterns.</li></ul> Must-Have Skills:<ul><li>Strong proficiency in Python, SQL (including Snowflake’s SQL variations).</li><li>Experience with Snowflake or equivalent cloud data platforms.</li><li>Solid knowledge of data engineering best practices, data modeling, and design patterns.</li><li>Excellent communication, collaboration, and mentoring skills.</li></ul> Nice-to-Have Skills:<ul><li>Familiarity with ETL tools like Matillion or Informatica.</li><li>Experience with generative AI tools for work acceleration.</li><li>Knowledge of enterprise scheduling tools (e.g., RMJ, Jams).</li><li>Exposure to Microsoft Azure DevOps and working in a Kanban environment.</li></ul>

Elevate Interview Questions

Elevate Interview Guides

Elevate Interview Questions

Elevate Salaries by Position

Elevate Opening Jobs