Mariusz Marciniak
Freelance Software Architect at Freelance Software Development
Krakow, Lesser Poland Voivodeship
Summary
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Rockstar🎓
Top SchoolMariusz Marciniak is a Freelance Software Architect based in Krakow with 10 years of experience designing high-performance, highly distributed automation platforms. He has built production-grade systems across C++, Go, Node.js and TypeScript, tackling challenges from social media scraping and Amazon review sentiment pipelines to automated arbitrage betting and custom sneaker bots. His background includes low-level systems work—network tunneling and a custom HTTP server—and research-grade information retrieval for offline Wikipedia search on low-end Android devices, highlighting both systems and algorithmic depth. Mariusz often works solo on core technologies, favoring reliability, concurrency and performance engineering across Kafka, MySQL/MongoDB and modern front-end stacks. He combines hands-on implementation with architecture-level thinking, frequently delivering end-to-end solutions that bridge research ideas and production constraints. An appetite for cross-platform portability and squeezing big data into constrained environments is a recurring, distinguishing theme in his work.
10 years of coding experience
9 years of employment as a software developer
Informática de Sistemas, Informática de Sistemas at Universitat Autònoma de BarcelonaIES Mig-Món Súria
English, Spanish, Catalan, Polish
Github Skills (25)
vnc10
vnc-client10
server10
vnc-server10
rewrite9
web-application9
desktop-application9
novnc9
remote-desktop9
react8
guacamole8
vpn7
openvpn7
server-side7
macos6
Programming languages (3)
Github contributions (5)
VPNht/openvpnserv2
Apr 2017 - Jan 2018
OpenVPN service rewrite
Contributions:66 commits, 22 pushes, 6 branches in 9 months
rewritevpnwireguardopenvpn
VPNht/desktop-legacy
Mar 2017 - Jan 2018
Contributions:88 commits, 47 pushes in 10 months
desktop-applicationmac-oselectronwindowsvpn
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