Prepare for and practice interview questions from Mixpanel.

Mixpanel Interview Questions

Mixpanel Interview Guides

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

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?

Mixpanel Salaries by Position

About Mixpanel: Mixpanel is a leading product analytics software company, currently helping the world answer 81 million product questions every year. Our pioneering event-based tracking solution gives product teams the ability to gain insights into how to best acquire, convert, and retain their users across web and mobile platforms. Powerful, flexible, and easy-to-use, Mixpanel enables teams to learn from their user data and innovate rapidly in creating winning products. Today, we serve nearly 7,000 paying customers through seven offices globally in our quest to provide the most in-depth product analytics that everyone can use and trust. We are actively recruiting for multiple Software Engineers across different levels for our org! About the role Mixpanel is powered by a custom distributed database. This system ingests more than 1 Trillion user-generated events every month while ensuring end-to-end latencies of under a minute and queries typically scan more than 1 Quadrillion events over the span of a month. Over the last year, our inbound traffic has doubled. As our existing customers grow in volume and we add new ones, we expect this growth in traffic to continue. The infrastructure engineering teams are responsible for adding new capabilities and ensuring the smooth operation of the underlying systems. What you'll do at Mixpanel Mixpanel's infrastructure runs on Google Cloud Platform. We rely on Kubernetes and Docker for orchestration and containerization of our services. We primarily use Golang for writing services and all internal communication happens via GRPC. We use a combination of C and C++ wherever Golang doesn't meet our performance goals. As an engineer on the Infrastructure teams, you'll be responsible for: <ul> <li>Working with other engineers to build distributed systems that can handle data at scale</li> <li>Debugging production issues across multiple services and all levels of our infrastructure stack</li> <li>Ensuring reliability and uptime of the services you're responsible for</li> <li>Keeping an eye on how much your service costs every month and removing inefficiencies wherever possible</li> <li>Improving engineering standards and holding a high bar for code quality and simplicity</li> <li>Pushing the boundaries on how our customers analyze their product data</li> </ul> A typical project requires a thorough understanding of how not just your service works but also how it interacts with other components. Here are some projects we've worked on in the past to give you an idea of what to expect. <ul> <li>Most of the systems in our stack provide at least once semantics. As a result, we risk duplicating events that flow through them. To overcome this limitation, we added support for event deduplication that can work at our scale. Typical approaches for deduplication don't perform well on large amounts of data, so we had to do something highly custom for our stack. We wrote about this on our engineering blog << https://engineering.mixpanel.com/petabyte-scale-data-deduplication-mixpanel-engineering-e808c70c99f8 >>.</li> <li>Back in 2019, we migrated our ingestion API service from Python to Golang for better performance and type safety. We had to do this while ensuring that both systems handle data the same way. Because we had to compare, both, HTTP responses and transformed payloads, nothing out of the box worked for us. This blog post << https://engineering.mixpanel.com/safely-rewriting-mixpanels-highest-throughput-service-in-golang-mixpanel-engineering-62cd69b5ebdb >> talks about how we did the actual migration without any customer visible downtime.</li> <li>In 2021, as our traffic grew almost 100%, the cost of storing data became untenable. Our engineers worked on an incremental way to eventually realize almost $30000 in savings per month << https://engineering.mixpanel.com/saving-30000-a-month-by-improving-garbage-collection-c5b793bbb07d >>.</li> </ul> If projects like the ones listed above excite you, the infrastructure engineering team will be a great fit. What we're looking for We have openings across multiple infrastructure teams. We're looking for engineers who have: <ul> <li>A strong grasp of computer science fundamentals when it comes to dealing with distributed systems and networks. You'll routinely run into issues where "one in a million" chances actually happen in production</li> <li>A knack for problem-solving and thinking from first principles. You don't shy away from any problem, no matter the scale or impact</li> <li>A bias towards shipping early and iterating. We believe in making small incremental changes to existing systems instead of large multi-quarter undertakings</li> <li>Experience building distributed systems or is eager to build that skillset</li> </ul> Benefits and Perks <ul> <li>Comprehensive Medical, Vision, and Dental Care</li> <li>Mental Wellness Benefit</li> <li>Generous Vacation Policy & Additional Company Holidays</li> <li>Enhanced Parental Leave</li> <li>Volunteer Time Off</li> <li>Additional US Benefits: Pre-Tax Benefits including 401(K), Wellness Benefit, Holiday Break</li> </ul> please note that benefits and perks for contract positions will vary About our culture: Be Open: When knowledge becomes open, we can come together as a team to collaborate around a shared purpose. Customer Focus: Our customers success is our success. Lead Change: Everyone at Mixpanel has the capacity to make an impact on the business. Results Oriented: Driving results in a measurable way ensures we stay focused on the highest impact initiatives. One Team: We cant win without each other. Why choose Mixpanel? Were the leader in product analytics and have raised $277M from prominent investors like Andreessen-Horowitz, Sequoia, YC, and Bain Capital. Over the years, weve seen a spike in our leading indicatorssignups and weekly active userswhich have directly translated to revenue growth. Recently, we secured a $200M Series C growth investment from Bain Capital to accelerate our product development, expand our reach to customers, and more. Our award-winning teams make our continued growth possible by finding creative solutions to ever-changing challenges with scaling, reliability, design, and service. Today, were the only company single-mindedly focused on enabling the worlds most innovative companies to use data to uncover insights about their customers to build better products. Mixpanel is an equal opportunity employer supporting workforce diversity. At Mixpanel, we are focused on things that really matterour people, our customers, our partnersout of a recognition that those relationships are the most valuable assets we have. We actively encourage women, people with disabilities, veterans, underrepresented minorities, and LGBTQ+ people to apply. We do not discriminate on the basis of race, religion, color, national origin, gender, gender identity or expression, sexual orientation, age, marital status, veteran status, or disability status. Pursuant to the San Francisco Fair Chance Ordinance or other similar laws that may be applicable, we will consider for employment qualified applicants with arrest and conviction records. Weve immersed ourselves in our Culture and Values as our guiding principles for the impact we want to have and the future we are building.

About Mixpanel Mixpanel is a leading product analytics software company, currently helping the world answer 81 million product questions every year. Our pioneering event-based tracking solution gives product teams the ability to gain insights into how to best acquire, convert, and retain their users across web and mobile platforms. Powerful, flexible, and easy-to-use, Mixpanel enables teams to learn from their user data and innovate rapidly in creating winning products. Today, we serve nearly 7,000 paying customers through seven offices globally in our quest to provide the most in-depth product analytics that everyone can use and trust. We are actively recruiting for multiple Software Engineers across different levels for our org! About the role Mixpanel engineering is a small team that works quickly, prioritizing getting value to customers and iterating to make those experiences even better. We offer the most powerful product analytics tool while still focusing on making the user experience delightful. The full stack engineers have the freedom to move about the stack to deliver value to customers without being blocked by ownership silos. This means doing everything from building snappy UIs and fast and reliable services to leveraging our powerful query engine to get the customers answers that help them deliver great products. We are looking for folks who seek to understand and own customer problems, participating in every step of the development life cycle from ideation to delivery and maintenance. We encourage ownership and autonomyif you see customer pain points, you will be empowered to fix them. There is no "not my problem" at Mixpanel. All customer problems are ours to fix. We believe that our UX is a key differentiator, and we invest heavily in UI, aiming for a snappy and intuitive experience. We believe in Product-Led Growth, that even enterprise adoption of software tools starts with individual users and the way to get there is through creating a user experience that gets customers to answers quickly. Responsibilities At Mixpanel Engineering, Product, and Design (EPD) work closely in pods to define the product and experiences. You'll be collaborating closely with your EPD team to create a vision for delightful and intuitive UX, then work to deliver the most impactful features for our customers. You'll be owning key pieces of the product, maintaining them, and always advocating for improvements to make the user experience even better, adding to our growing shared components library and expanding our design system << https://design.mixpanel.com/ >> . Youll be working on our web app, which is built in Python, running Django, with an open source JavaScript framework << https://github.com/mixpanel/panel >> running the front end. Everything is run on Google Cloud Platform, using Kubernetes and Docker for orchestration and containerization of our services. A typical project requires working across our stack, creating endpoints for your feature as well as developing and deploying the UI. Here are some projects we've worked on in the past to give you an idea of what to expect. A way for customers to share their metrics publicly, a pain point for customers who want to easily share their data on social media or with executive leadership. This feature required keeping an eye on security so unintentional data would not be leaked for customers, but would enable easier collaboration. We rebuilt our Live View from the ground up and rebranded to Events << https://help.mixpanel.com/hc/en-us/articles/4402837164948-Events-formerly-Live-View- >>. Our goal was to improve users trust and make debugging their data and query results easier. With these goals in mind, we removed a number of limitations from Live View, improved key work flows, and tightened the UX. We also drastically simplified both the back-end and front-end architecture resulting in a more performant and maintainable product. The end result is a more powerful tool for our users and a simpler codebase for our developers. We revamped our dashboards UI to improve the workflow for creating and saving analyses that also had the nice side effect of making our data model clearer. This required us to iterate and polish while learning more about how customers used and worked around our product in their day to day. We applied these learnings to smooth our workflows even more while continuing to set the stage for more series of improvements. We redesigned our query builder to allow users to instantly see the results of their changes on one screen. This was required balancing competing requirements of visual space for the query builder and the ability to see two things at once, resulting in a more intuitive UX. We made segmentation faster allowing users to customize what they can compare at the query time vs deciding everything they will ever need at the time they develop your product. What we're looking for <ul> <li>We are hiring full stack engineers at all levels across all teams.</li> <li>You take ownership of problems with a focus on delivering value to users/customers.</li> <li>You can deliver solutions that are pragmatic in approach.</li> <li>You have experience with web application architecture and principles.</li> <li>For more senior roles: You have a proven track record of launching and maintaining large-scale web products.</li> </ul> Benefits and Perks <ul> <li>Comprehensive Medical, Vision, and Dental Care</li> <li>Mental Wellness Benefit</li> <li>Generous Vacation Policy & Additional Company Holidays</li> <li>Enhanced Parental Leave</li> <li>Volunteer Time Off</li> <li>Additional US Benefits: Pre-Tax Benefits including 401(K), Wellness Benefit, Holiday Break</li> </ul> please note that benefits and perks for contract positions will vary About our culture: Be Open: When knowledge becomes open, we can come together as a team to collaborate around a shared purpose. Customer Focus: Our customers success is our success. Lead Change: Everyone at Mixpanel has the capacity to make an impact on the business. Results Oriented: Driving results in a measurable way ensures we stay focused on the highest impact initiatives. One Team: We cant win without each other. Why choose Mixpanel? Were the leader in product analytics and have raised $277M from prominent investors like Andreessen-Horowitz, Sequoia, YC, and Bain Capital. Over the years, weve seen a spike in our leading indicatorssignups and weekly active userswhich have directly translated to revenue growth. Recently, we secured a $200M Series C growth investment from Bain Capital to accelerate our product development, expand our reach to customers, and more. Our award-winning teams make our continued growth possible by finding creative solutions to ever-changing challenges with scaling, reliability, design, and service. Today, were the only company single-mindedly focused on enabling the worlds most innovative companies to use data to uncover insights about their customers to build better products. Mixpanel is an equal opportunity employer supporting workforce diversity. At Mixpanel, we are focused on things that really matterour people, our customers, our partnersout of a recognition that those relationships are the most valuable assets we have. We actively encourage women, people with disabilities, veterans, underrepresented minorities, and LGBTQ+ people to apply. We do not discriminate on the basis of race, religion, color, national origin, gender, gender identity or expression, sexual orientation, age, marital status, veteran status, or disability status. Pursuant to the San Francisco Fair Chance Ordinance or other similar laws that may be applicable, we will consider for employment qualified applicants with arrest and conviction records. Weve immersed ourselves in our Culture and Values as our guiding principles for the impact we want to have and the future we are building.

[Full Time] Senior Software Engineer, Distributed Systems (Remote-friendly but US only) at Mixpanel (United States) | BEAMSTART Jobs <h3>Senior Software Engineer, Distributed Systems (Remote-friendly but US only)</h3>Mixpanel United States Date Posted02 Mar, 2023 Work LocationSan Francisco, United States Salary Offered$211500 $258500 yearly Job TypeFull Time Experience Required6+ years Remote WorkYes Stock OptionsNo Vacancies1 available About Mixpanel:Mixpanel is a leading product analytics software company, currently helping the world answer 81 million product questions every year. Our pioneering event-based tracking solution gives product teams the ability to gain insights into how to best acquire, convert, and retain their users across web and mobile platforms.Powerful, flexible, and easy-to-use, Mixpanel enables teams to learn from their user data and innovate rapidly in creating winning products. Today, we serve nearly 7,000 paying customers through seven offices globally in our quest to provide the most in-depth product analytics that everyone can use and trust.We are actively recruiting for multiple Software Engineers across different levels for our org!About the roleMixpanel is powered by a custom distributed database. This system ingests more than 1 Trillion user-generated events every month while ensuring end-to-end latencies of under a minute and queries typically scan more than 1 Quadrillion events over the span of a month. Over the last year, our inbound traffic has doubled. As our existing customers grow in volume and we add new ones, we expect this growth in traffic to continue. The infrastructure engineering teams are responsible for adding new capabilities and ensuring the smooth operation of the underlying systems.What you'll do at MixpanelMixpanel's infrastructure runs on Google Cloud Platform. We rely on Kubernetes and Docker for orchestration and containerization of our services. We primarily use Golang for writing services and all internal communication happens via GRPC. We use a combination of C and C++ wherever Golang doesn't meet our performance goals.As an engineer on the Infrastructure teams, you'll be responsible for:<ul><li>Working with other engineers to build distributed systems that can handle data at scale</li><li>Debugging production issues across multiple services and all levels of our infrastructure stack</li><li>Ensuring reliability and uptime of the services you're responsible for</li><li>Keeping an eye on how much your service costs every month and removing inefficiencies wherever possible</li><li>Improving engineering standards and holding a high bar for code quality and simplicity</li><li>Pushing the boundaries on how our customers analyze their product data</li></ul>A typical project requires a thorough understanding of how not just your service works but also how it interacts with other components. Here are some projects we've worked on in the past to give you an idea of what to expect.<ul><li>Most of the systems in our stack provide at least once semantics. As a result, we risk duplicating events that flow through them. To overcome this limitation, we added support for event deduplication that can work at our scale. Typical approaches for deduplication don't perform well on large amounts of data, so we had to do something highly custom for our stack. We wrote about this on our engineering blog << https://engineering.mixpanel.com/petabyte-scale-data-deduplication-mixpanel-engineering-e808c70c99f8 >>.</li><li>Back in 2019, we migrated our ingestion API service from Python to Golang for better performance and type safety. We had to do this while ensuring that both systems handle data the same way. Because we had to compare, both, HTTP responses and transformed payloads, nothing out of the box worked for us. This blog post << https://engineering.mixpanel.com/safely-rewriting-mixpanels-highest-throughput-service-in-golang-mixpanel-engineering-62cd69b5ebdb >> talks about how we did the actual migration without any customer visible downtime.</li><li>In 2021, as our traffic grew almost 100%, the cost of storing data became untenable. Our engineers worked on an incremental way to eventually realize almost $30000 in savings per month << https://engineering.mixpanel.com/saving-30000-a-month-by-improving-garbage-collection-c5b793bbb07d >>.</li></ul>If projects like the ones listed above excite you, the infrastructure engineering team will be a great fit.What we're looking forWe have openings across multiple infrastructure teams. We're looking for engineers who have:<ul><li>A strong grasp of computer science fundamentals when it comes to dealing with distributed systems and networks. You'll routinely run into issues where "one in a million" chances actually happen in production</li><li>A knack for problem-solving and thinking from first principles. You don't shy away from any problem, no matter the scale or impact</li><li>A bias towards shipping early and iterating. We believe in making small incremental changes to existing systems instead of large multi-quarter undertakings</li><li>Experience building distributed systems or is eager to build that skillset</li></ul>Benefits and Perks<ul><li>Comprehensive Medical, Vision, and Dental Care</li><li>Mental Wellness Benefit</li><li>Generous Vacation Policy & Additional Company Holidays</li><li>Enhanced Parental Leave</li><li>Volunteer Time Off</li><li>Additional US Benefits: Pre-Tax Benefits including 401(K), Wellness Benefit, Holiday Break</li></ul>please note that benefits and perks for contract positions will varyAbout our culture:Be Open: When knowledge becomes open, we can come together as a team to collaborate around a shared purpose.Customer Focus: Our customers success is our success.Lead Change: Everyone at Mixpanel has the capacity to make an impact on the business.Results Oriented: Driving results in a measurable way ensures we stay focused on the highest impact initiatives.One Team: We cant win without each other.Why choose Mixpanel?Were the leader in product analytics and have raised $277M from prominent investors like Andreessen-Horowitz, Sequoia, YC, and Bain Capital. Over the years, weve seen a spike in our leading indicatorssignups and weekly active userswhich have directly translated to revenue growth. Recently, we secured a $200M Series C growth investment from Bain Capital to accelerate our product development, expand our reach to customers, and more. Our award-winning teams make our continued growth possible by finding creative solutions to ever-changing challenges with scaling, reliability, design, and service. Today, were the only company single-mindedly focused on enabling the worlds most innovative companies to use data to uncover insights about their customers to build better products.Mixpanel is an equal opportunity employer supporting workforce diversity. At Mixpanel, we are focused on things that really matterour people, our customers, our partnersout of a recognition that those relationships are the most valuable assets we have. We actively encourage women, people with disabilities, veterans, underrepresented minorities, and LGBTQ+ people to apply. We do not discriminate on the basis of race, religion, color, national origin, gender, gender identity or expression, sexual orientation, age, marital status, veteran status, or disability status. Pursuant to the San Francisco Fair Chance Ordinance or other similar laws that may be applicable, we will consider for employment qualified applicants with arrest and conviction records. Weve immersed ourselves in our Culture and Values as our guiding principles for the impact we want to have and the future we are building. <h3>About Mixpanel </h3><h3>Product analytics to help convert, engage, and retain more users.</h3> Company Size: 251 - 500 People Year Founded: 2009 Country: United States Company Status: Actively Hiring Looking for Partners Looking for Clients Raising Funds <h3>Share This Job</h3> <h3>More Full Time Jobs </h3> <h3>Senior Engineer </h3>San Francisco Full Time $150 - $180000 yearly <h3>RADAR Product Engineer </h3>Berkeley, CA Full Time $110000 - $140000 yearly <h3>Senior Growth Marketing Manager </h3>San Francisco Full Time <h3>Strategic FP&A Lead </h3>Mexico City, Mexico Full Time <h3>Full-stack Engineer </h3>San Francisco Full Time $80000 - $220000 yearly <h3>More Companies Hiring </h3> <h3>Karate Labs </h3>United States <h3>NimbleRx </h3>United States <h3>Respaid </h3>United States <h3>Automat (formerly lasso) </h3>United States <h3>Spruce Systems </h3>United States BEAMSTART brings you the latest news, databases, and jobs from all around the world on startups, technology, and business. Stay updated with industry news, plug-in to exciting community events, and discover incredible career opportunities with the world's most innovative companies. <h3>Discover Jobs </h3><ul><li>Full Time </li><li>Part Time </li><li>Contract </li><li>Internship </li><li>Volunteer </li><li>Companies </li><li>Candidates </li><li>Post a Job </li><li>For Recruiters </li></ul> <h3>Our Company </h3><ul><li>News </li><li>Jobs </li><li> Database </li><li>About Us </li><li>Download App </li><li> More </li></ul> Copyright 2023 BEAMSTART . All Rights Reserved. #J-18808-Ljbffr

Mixpanel Interview Questions

Mixpanel Interview Guides

Mixpanel Interview Questions

Mixpanel Salaries by Position

Mixpanel Opening Jobs