Maintained and extended the custom distributed database at the core of Mixpanel across the ingestion, storage, and query services
• Improved query performance, decreased file sizes, and reduced loading times by adding a new file format to custom database
• End-to-end implementation of new services and custom database primitives for Group Analytics
• Improved stability, readability, and maintainability of query code by rewriting old legacy backend implementation of Mixpanel’s Signal report
Reduced query team oncall burden from 3+ off-hours incidents per week to less than one
• Established practices for post-alert RCA
• Drove multiple rounds of work removing old alerts and making noisy alerts more reliable and less flappy
• War on Incorrect Error Codes: Defined and enforced error interfaces between layers of the query stack and from query stack to the frontend, enabling better retry policies and more accurate alerting
• Established dashboard tracking alerts—business hours and off hours—to monitor health and allow early detection of pager/alert burden
• Human policy improvements: “two overnight alerts triggers early handoff to a fresh human”
Maintained internal C and C++ style guides and coding standards, improving codebase readability by ensuring consistent conventions, naming, and patterns
Recognized source of information and excellence
• Onboarded employees new to the company or just wanting to dig deeper into the query stack
• Mentored employees new to ERG leadership roles
• Resource for questions about historical context and deep system expertise
Founding lead of Mixability, Mixpanel’s disability ERG, and later co-lead of WeRQ, Mixpanel’s LGBTQIA+ ERG
