Evan Purkhiser

Experiences

1. Sentry

   Senior Software Engineer

   Aug 2017 - Pres. August 2017 – Present

   Shipping Products

   • Launched Uptime Monitoring from zero to GA, owning the entire architecture across a high-concurrency Rust checker, Kafka pipeline, Python processor, and React frontend; scaled to 100k+ customer monitors.
   • Led multi-year end-to-end ownership of Cron Monitoring, evolving it from early PoC to a highly reliable system processing 60M+ daily check-ins, including timing-sensitive processors, internal anomaly detection, and frontend user experience.
   • Built Slack Integration from the ground up atop the integration platform, becoming our most used integration, 120k+ orgs.
   • Rebuilt onboarding experience with a heavy focus on clarity, polish, and micro-interactions, creating strong first impressions.

   Platform Engineering

   • Designed and implemented a generalized integrations platform (OAuth, permissions, feature gating, UI primitives), unlocking rapid development of Slack, GitHub, Jira, Vercel, etc integrations.
   • Established a shared chart rendering pipeline across frontend and backend, enabling notification charts (email, Slack, etc) to reuse frontend code, significantly reducing maintenance overhead and ensuring consistent presentation.
   • Reduced inconsistent frontend event search experiences by building a reusable, type-safe parsing grammar, enabling incremental parsing and consistent behavior across UI surfaces, while improving developer ergonomics and maintainability.

   Systems Stewardship

   • Led Python 2 → 3 migration across the monolith, unblocking dependency upgrades and future platform work.
   • Proactively led multi-year frontend modernization efforts to preempt scaling and maintainability risks. Areas included upgrading routing infrastructure (React Router 3→6), component architecture (class → functional), and testing strategy (Enzyme → React Testing Library). Enabling faster, safer iteration and higher engineering velocity across the organization.
   • Drove TypeScript adoption, converting 500+ JavaScript files to TypeScript across all aspects of Sentry's frontend application.
   • Cut CI build times by 40% via a GitHub Actions Docker test image with dependency caching.

   Organizational Level Leadership

   • Led Frontend Technical Steering Committee, accomplishing complete migration to TypeScript, organization-wide code quality initiatives, React modernizations, and testing infrastructure improvements across 7+ product teams.
   • Mentored engineers on system design, UX interaction, testing philosophy, and pragmatic tasteful decision-making.

2. Crunchyroll / VRV

   Senior Software Engineer

   Aug 2014 - Aug 2017 August 2014 – August 2017

   • Designed and developed high-performance APIs using golang to serve video content metadata.
   • Full-stack implementation of a "content partner" portal for video content management. Developed using React + Redux. Collaborated with designers to produce a polished, branded UI with an emphasis on usability.
   • Promoted quality coding standards, git best practices, review best practices, automated style lint tooling, and improved developer environment tooling throughout the organization for a high-quality developer experience.

3. Acadaware

   Lead Web Applications Developer

   Mar 2011 - Jul 2014 March 2011 – July 2014

   Developed a web application for managing Experiential Physician Education programs. Responsibilities included all stages of development, from initial requirement gathering to deployment and configuration of a production server environment via Chef.

Personal Highlights