Mixpanel's mission is to help the world learn from their data. We've made it ridiculously easy to run extremely complex queries across massive amounts of data, all in real-time - our reports are literally to-the-second.

We're currently processing over 10 billion transactions per month from gaming, mobile, social, and e-commerce companies world-wide. This volume of data, and types of analysis we do, give us some uniquely interesting problems to solve: scaling, data integrity, building api's, availability, and data visualization.

Our engineers

• Demonstrate world-class programming ability.
• Build the tools they need to move fast.
• Care deeply about system reliability, code quality, and frontend architecture.
• Will dig through source code other people wrote to fix problems no matter what.
• Are 80% vim and 20% emacs.

Mixpanel front-end engineers write massive amounts of Javascript,  as well as Python, HTML, and CSS.  

Interfaces as complex as ours are extremely challenging to build, and we take the challenge seriously - Javascript makes up 56% of our entire codebase.  We use excellent tools like jQuery, underscore, and Backbone, as well as a variety of internal frameworks and systems.

Expectations

• You have mastered one (any) programming language. We write C, Python, and Javascript heavily.
• You have a core understanding of fundamental computer science concepts.
• You have built (and are dying to show us) something you're proud of, outside of work/school.

Financial considerations

• We are backed by amazing top-tier investors including: Sequoia Capital, Max Levchin, Michael Birch, and Keith Rabois.

Challenge

• What's the hardest thing you have ever built? Explain it in as much detail as you would like. Email jobs@mixpanel.com with your answer and resume.