Yi Cheng Email & Phone Number

Los Gatos, Ca, Us

Developer productivity / Software SDLC

China, China, Cn

* Promote and ship monorepo solutions to tiktok & devinfra developers * Repo migrations, CI/CD pipeline conversions * Educations* Sheperd 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 / prioritization * Remote cache / remote exec * Integration for bazel interfacing multiple external systems

San Francisco, Ca, Us

2020 - 2022[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 - https://drive.google.com/file/d/1N3-aza4Ql-JECbdUeei_ZglQcohoa5Bl/view2019 and Prior* Develop and maintain Pants, the main build tool in Twitter. * 3rdparty resolver migration (Coursier -> Ivy) - https://v1.pantsbuild.org/coursier_migration.html * IntelliJ Pants Plugin - https://github.com/pantsbuild/intellij-pants-plugi) 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

San Jose, Ca, Us

Infrastructure setup and configurationCloud management and automationFull stack web devopsMobile gateway solution testing

Rockford, Il, Us

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

The goal is to produce a tool to repair surface meshes that fix common problems in CAD-generated meshes such as: holes, gaps, undesired interior surface, and the following techniques are applied :•Parse the original mesh into a grid used for topology extraction•Use expansion and contraction theory to determine the desired surfaces•Use quadrics matrices to retrieve the ideal vertices for reconstruction

Champaign, Il, Us

CS225 teaching assistant (lab assistant, office hours). Course taught by Prof. Cinda Heeren. Covers: A multitude of data structures, including multidimensional dynamic arrays, linked lists, tree structures (both in general and as dictionaries), and disjoint sets/graphs, using C++ as the course language.

Cn

•Obtained and coded in PHP to pull weather information automatically from internet into MySQL

92084 Paris - La Défense, Fr

Signal Processing for Relay DevelopmentLearned signal processing skills including differential and integration that - filter exponential decay DC component out of AC current for AC restoration. - analyze restored AC to detect undercurrent in grid.Used Matlab and Simulink to simulate and analyze test algorithms of signal processing.

Master, Computer Science

B.S, Computer Engineering