Yerkebulan Tulibergenov
Senior Software Engineer at Square
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolYerkebulan Tulibergenov is a Senior Software Engineer in San Francisco with 11 years of experience building robust backend systems and improving developer tooling. He currently works at Square and has a strong open-source footprint in the Rust ecosystem, contributing to high-profile projects such as rust-analyzer, Cargo, and Servo where he focused on testing, memory-management refactors, and SSL/TLS improvements for a MySQL client. His background blends hands-on engineering across fintech and consumer web platforms with prior executive experience in finance, giving him a rare combination of technical depth and business acumen. Academically trained in economics and computer science (including an M.Sc. from Georgia Tech), he brings a pragmatic, systems-oriented approach and a track record of automating processes that save significant developer time. Notably, he has worked on low-level browser and compiler tooling—areas that demand careful correctness and deep language/runtime understanding.
11 years of coding experience
15 years of employment as a software developer
Certificate Program, Applications Programming, Mobile Application Development, Certificate Program, Applications Programming, Mobile Application Development at UCLA ExtensionBSc, Economic Cybernetics, BSc, Economic Cybernetics at Al-Farabi Kazakh National UniversityMSc, Economics, MSc, Economics at University of WarwickMaster of Science (M.Sc.), Computer Science, Master of Science (M.Sc.), Computer Science at Georgia Institute of TechnologyCertificate Program, Executive Leadership, Certificate Program, Executive Leadership at Cornell University
Russian, English
Stackoverflow
2,201reputation
575kreached
19answers
2questions
php
top-5%
rust
top-5%
io
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polymorphism
top-5%
Github Skills (37)
ssl10
cargo10
tls1210
package-management10
mysql10
testing10
memory-management10
browser10
tls1310
webgpu10
rust10
server10
test-automation10
garbage-collection10
polymorphism9
Programming languages (17)
Github contributions (5)
rust-lang/cargo
Jan 2022 - Jul 2022
The Rust package manager
Role in this project:
Backend Developer
Backend DeveloperContributions:16 reviews, 13 commits, 8 PRs in 6 months
Contributions summary:Yerkebulan primarily contributed to the Cargo package manager by fixing existing tests, adding new tests, and refactoring existing code. Their commits focused on enhancing the testing infrastructure, as evidenced by changes to existing test suites and the addition of new test cases related to build processes and error messages. They also refactored code by extracting functions to improve readability.
rustpackage-managercargo
servo/servo
Jul 2019 - Mar 2025
Servo, the embeddable, independent, memory-safe, modular, parallel web rendering engine
Role in this project:Back-end Developer
Back-end DeveloperContributions:2 reviews, 24 PRs, 29 comments in 5 years 8 months
Contributions summary:Yerkebulan primarily contributed to refactoring the Servo project's codebase, focusing on adding the `CanGc` argument across multiple methods and functions related to buffer management, memory allocation and the integration of WebGPU. These changes affected core components like `ReadableStream`, `WritableStream`, `SubtleCrypto`, and `GPUBuffer`, indicating efforts to improve memory management and garbage collection within the browser engine. Their work involved modifications across several files, demonstrating a focus on improving the project's internal workings.
browserrustjavascriptbrowser-engineservo
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