Bartłomiej Styczyński
Senior Backend Engineer at DuckSoft
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolBartłomiej Styczyński is a Senior Backend Engineer based in Warsaw with 10 years of experience building robust Java and Go systems and leading small engineering teams. He moved rapidly from an insurance-broker background to technical leadership, combining domain empathy with pragmatic engineering and a focus on performance and team morale. At companies from Glovo to Uncapped and currently gravity9, he’s steered backend architecture, recruitment, and cross-team initiatives like hackathons and tech-debt days. As an entrepreneur he maintains DuckSoft and built a Jira plugin for bulk change reversion and time-based comparisons, showing product instincts beyond backend code. An active open-source contributor, his backend work appears in notable proxy projects (v2ray-core, trojan-go, Qv2ray) where he improved stability, parsing, and shutdown behavior across C++, Go and network protocols. He’s known for caring about code quality, good culture, and—true to his GitHub—being an INTP jack-of-all-trades who uses Arch.
10 years of coding experience
5 years of employment as a software developer
Master's degree, Social Information Technologies, Master's degree, Social Information Technologies at Polsko-Japońska Wyższa Szkoła Technik Komputerowych w WarszawieBachelor's degree, Management, Bachelor's degree, Management at SGH Warsaw School of Economics
Polish, English, Spanish, Korean
Stackoverflow
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Github Skills (24)
apim10
c-language10
qt10
testing10
proxy10
anticensorship10
url-parsing10
networking10
go10
api10
dns10
v2ray10
golang10
network10
error-handling10
Programming languages (24)
Github contributions (5)
Qv2ray/Qv2ray
Oct 2019 - Dec 2022
:star: Linux / Windows / macOS 跨平台 V2Ray 客户端 | 支持 VMess / VLESS / SSR / Trojan / Trojan-Go / NaiveProxy / HTTP / HTTPS / SOCKS5 | 使用 C++ / Qt 开发 | 可拓展插件式设计 :star:
Role in this project:
Back-end Developer
Back-end DeveloperContributions:10 releases, 45 reviews, 328 commits in 3 years 2 months
Contributions summary:Bartłomiej's commits primarily focus on modifying the core logic and internal workings of the Qv2ray application. The contributions include changes related to v2ray core placement, show main window adjustments, command-line parsing enhancements, and fixes to prevent blocking shutdown and logout scenarios. They also implemented support for a dual backend and removed a grpc dependency. These modifications suggest a focus on back-end development, including configuration management and core API interactions.
socks5v2raynaiveproxymacoslinux-windows
v2fly/v2ray-core
Jun 2020 - May 2021
A platform for building proxies to bypass network restrictions.
Role in this project:Back-end Developer
Back-end DeveloperContributions:7 reviews, 5 PRs, 9 comments in 10 months
Contributions summary:Bartłomiej primarily focused on improving the stability and maintainability of the v2ray-core project. Their work involved fixing typos and addressing errors related to DNS resolution, specifically within the DoH (DNS over HTTPS) component. In addition to bug fixes, the user removed deprecated scripts and made minor improvements to code clarity and efficiency, with a focus on the transport and KCP modules. This highlights a focus on improving the core functionality of the proxy.
proxyvlessvpnbypassproxies
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