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Ionq Inc. Interview Questions

Ionq Inc. Interview Guides

<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?

<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

Ionq Inc. Salaries by Position

<p>Software Engineer - Automation & Calibration Location: Seattle, Washington, United States
Team: Software
Type: Full-Time
IonQ is developing the world's most powerful full-stack quantum computer based on trapped-ion technology. We are pushing past the limits of classical physics and current supercomputing technology to unlock a new era of computing. Quantum computing has the potential to impact every area of human society for the better. IonQ’s computers will soon redefine industries like medicine, materials science, finance, artificial intelligence, machine learning, cryptography, and more. IonQ is at the forefront of this technological revolution.
The salary range for this position is $115,692 - $151,471.
We are looking for a Software Engineer on the Automation & Calibration Team. You’ll be part of a cross-functional team whose mission is to lead IonQ on its journey to build the world’s best quantum computers to solve the world’s most complex problems.
Improving the quality and optimizing the efficiency of our quantum computers requires developing control routines and automated calibrations with our team of experimental physicist operators, and helping configure new hardware for the system. Prior experience with control theory, hardware device control, and working with scientists will be helpful; data analysis and statistical methods are even more useful.
We encourage applicants from different career paths for this position. You could be a software engineer with an emerging interest in quantum computing. You could be a quantum researcher with strong software engineering skills and desire to focus on the engineering discipline. We’d love a blend of hands-on experience as well as tactical and strategic direction.
Responsibilities:
Write code used to run physical experiments and regular quantum computer operations
Write adapters for new hardware devices and new capabilities
Automate and optimize the calibration of our systems’ physical parameters
Effectively self-manage projects, priorities, deadlines, and deliverables
Closely collaborate with cross-functional teams of physicists, electrical engineers, and other software engineers to produce higher quality quantum computations
You’d be a good fit with:
Bachelor’s degree in Computer Science, Mathematics, Statistics, Physics, or related field, or equivalent industry experience
2+ years programming experience in a general-purpose language like Python, TypeScript, Go, Rust, or C++
1+ years total employment in a software engineering role
Analysis skills in statistics, modeling, or optimization
You’d be a great fit with:
MS or PhD in Computer Science, Mathematics, Statistics, Physics, a related degree, or equivalent industry experience
Experience in machine learning
A background in digital signal processing and/or control theory
Experience in working with technical experts outside of traditional software engineering, particularly electrical engineers and physicists
Location:
This position is located in our newest facility in Bothell, WA. We are open to hiring in College Park, MD or Toronto, Canada for the right candidate.
Our HQ is located in College Park, Maryland and we are a 15 minute metro ride from Washington DC. We are actively building out our recently opened manufacturing and production facility in the Seattle, Washington area. Depending on the position, you may be required to be located in Washington DC, Seattle, Washington or the Toronto, Canada area. However, IonQ will be expanding into additional geographies both domestically and internationally so don’t let this stop you from applying.

At IonQ, we believe in fair treatment, access, opportunity and advancement for all, while at the same time striving to identify and eliminate barriers. We empower employees to thrive by fostering a culture of autonomy, productivity, and respect. We are dedicated to creating an environment in which any individual can feel welcomed, respected, supported and valued.

We are committed to equity and justice. We welcome different voices and viewpoints and do not discriminate on the basis of race, religion, color, national origin, ancestry, physical and/or mental disability, medical condition, genetic information, marital status, sex, gender, gender identity, gender expression, transgender status, age, sexual orientation, and military or veteran status, or any other basis protected by law. We are proud to be an Equal Employment Opportunity employer.
The base pay component of the offer will vary depending on multiple individualized factors, including market location, job-related knowledge, skills, and experience. Posted figures are subject to change as new market data becomes available. The total compensation package may include other elements dependent on the position and level. Details of participation in these benefit plans will be provided if a candidate receives an offer of employment. Beyond base pay, total compensation includes a range of health insurance options and other benefits which can be found on our site at ionq.co/jobs . Some of our benefits include pet insurance, legal insurance, home internet stipend, a generous PTO plan, parental/adoption leave, 401K, dental and vision plans and paid holidays.

If you are interested in being a part of this team and mission, we encourage you to apply.

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Ionq Inc. Interview Questions

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Ionq Inc. Interview Questions

Ionq Inc. Salaries by Position

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