iOS testing and automation

Developer Experience Team

Worked on several projects to improve developer workflows for thousands of internal developers working on C++ and Python.

• Improved runtime of an internal C++ build tool written in Python by up to 100x by optimizing filesystem traversal algorithm.

• Unblocked C++ data race detection tool rollout (TSAN) by classifying and fixing regressions.

• Unblocked and rolled out upgrade to C++ testing libraries by fixing regressions with large-scale refactors.

• Built alert system to warn developers before experiencing runtime and size limits in C++ CI. Greatly reduced support burden for solving these issues.

• Unblocked migration of C++/Python developers to new continuous delivery system by implementing hotfix deployment.

• Fixed bug in CI system to properly block deployment on certain broken tests. Reduced support burden for this issue.

• Built tool to enable detection and mitigation of developer experience issues across company codebase. This tool was used to unblock the rollout of a new build system to C++/Python codebase which improved build speeds by 2x.

• Improved runtime of critical-path Python CI tool by 2x (30s->15s) which reduced CI costs and improved time-to-signal.

• Unblocked and migrated Android build CI to new, unified system. Enabled code re-use with existing mobile CI.

• Performed duties as C++/Python build/CI on-call engineer for several weeks.

Infrastructure - Service Capacity

Worked on a project to improve reporting speed of a fleet-wide capacity monitoring tool. Added accompanying dashboard to improve on-call engineer workflows.

Developer infrastructure supporting Oculus VR, worked on project to migrate the existing build system of a game engine to internal build system (Buck).