Bolek Kulbabinski
Software Engineer at Startup
San Francisco Bay Area United States
Summary
🤩
Rockstar🎓
Top SchoolBolek Kulbabinski is a seasoned software engineer with 11 years of experience building high-performance backend and networking systems in the San Francisco Bay Area. He has deep C++ and distributed-systems expertise from multiple roles at Facebook—working on DNS load balancing, Proxygen (HTTP/2 and HTTP server extensions), and payments gateway compliance—and has contributed fixes and feature work to widely used open-source projects like facebook/proxygen and smartcontractkit/chainlink. Comfortable in both large-scale production environments and early-stage startups, he focuses on protocol-level robustness, transaction handling, and reliable service isolation. His academic background includes a Master’s thesis-level distributed storage project (NebuloStore), reflecting a long-standing interest in storage and networking research. Notably, he has hands-on experience addressing tricky protocol parsing and control-flow bugs that improve stability in critical infrastructure components.
11 years of coding experience
11 years of employment as a software developer
Bachelor's Degree, Computer Science, Bachelor's Degree, Computer Science at University of Warsaw
Github Skills (16)
http10
c-language10
protocols10
go10
json-api10
cprogramming-language10
network-protocol10
proxy9
command-line-interface8
json8
golang8
command-line8
api-design8
integrations7
api7
Programming languages (6)
Github contributions (5)
smartcontractkit/chainlink
Jul 2022 - Jan 2023
node of the decentralized oracle network, bridging on and off-chain computation
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1440 reviews, 71 commits, 550 PRs in 6 months
Contributions summary:Bolek primarily worked on bug fixes and improvements to the `smartcontractkit/chainlink` repository, which is focused on building a decentralized oracle network. The user addressed issues in the configuration dumping command by returning data in a JSON API response format and made code improvements to the core command-line interface and web server. Furthermore, the user made changes that impacted core components of the repository, including the handling of external requests and allowing for customizable key paths.
golangcomputationethereumblockchaindecentralized
facebook/proxygen
Apr 2018 - Sep 2020
A collection of C++ HTTP libraries including an easy to use HTTP server.
Role in this project:Back-end Developer
Back-end DeveloperContributions:21 commits in 2 years 5 months
Contributions summary:Bolek primarily focused on enhancing the HTTP/2 and EX (Extended) transaction support within the Proxygen library. They fixed bugs related to frame parsing and handling of EX headers, addressing issues with stream management and control flow. Furthermore, the user contributed to the HTTPServer implementation by introducing and modifying classes and methods to accommodate EX transactions. These changes demonstrate a focus on extending and stabilizing core networking functionalities within the library.
http-serverc-plus-pluscppuse-http
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