Experiences

Software Engineer at Bytedance

Promote and ship monorepo solutions to tiktok & devinfra developers
- Repo migrations, CI/CD pipeline conversions
- Educations
Shepherd monorepo practices for migrated teams
- Trunk health enforcement and management
- Improve CI architecture and performance
Infra and tooling for monorepo solutions
- Packaged bazelisk / bazel / configs to adapt to internal environments
- Metrics for progress tracking / prioritizaion
- Remote cache / remote exec
- Integration for bazel intefacing multiple external systems

[Infra] Develop and maintain build infrastructure including
- build stats collection service for real time and offline analysis
- build cache service scalable to handle tens of thousand build workers
- Mac build farm that supports mac builds from developer machines
[Bazel Migration] Socialize, plan, design, and implement build tool migration from Pants to Bazel, interfacing customer teams and tooling teams to better support the migration.
- Collaborate with Managed CI team (Twitter’s custom code submission system which consists of tens of thousands of workers) to find and test code built by both build tools incrementally and safely.
  - Establish and maintain performance and reliability baseline and monitoring
- Collaborate with VM team to develop and execute the plan for company wide migration from JDK 8 to JDK 11 with minimal friction with Bazel migration.
- Mentor and work with junior engineers to maximize team throughput and resiliency
- BazelCon 2021 Talk - Migrating Twitter’s Monorepo from Pants to Bazel - 2021 - [Slides]

Develop and maintain Pants, the main build tool in Twitter.
- 3rdparty resolver migration (Coursier -> Ivy)
- IntelliJ Pants Plugin IDE integration with Pants.
Distributed build cache for Pants
Real time metrics for IntelliJ IDEA performance and usages
Maintain Android build system with
- Gradle / Android Studio / Android Gradle Plugin upgrades
- Establish performance metrics baseline and monitoring by integrating with Gradle Enterprise

Solve kinematics mathematically on different types of fiber placement machines.
Implement robotic kinematics algorithms with C++ to improve the speed.
Apply software engineering patterns and heuristics measures to maximize the performance and ease of code management.

Master, Computer Science, 2012 - 2013

B.S, Computer Engineering, 2008 - 2012