Tomasz Lemiech
Senior OSS Specialist at Polkomtel
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolTomasz Lemiech is a Senior OSS Specialist with 11+ years designing and operating service provider networks, focused on IP, MPLS, Carrier Ethernet and packet transport for mobile (GSM/UMTS/LTE). Based in Warsaw, he combines deep Cisco routing/switching/firewall expertise with LAN/WAN architecture and hands-on troubleshooting across large telco environments at Polkomtel. He brings a practitioner’s understanding of operational realities—automations and standardization—gained from progressive roles in network planning, architecture and OSS. An active contributor to open-source SDR tooling, he has improved rtl-airband’s robustness by fixing build issues, handling signals and hardening audio streaming over networks, showing a knack for bridging radio systems and packet networks. Practical, detail-oriented and curious, he pairs carrier-grade networking skills with a hobbyist’s appetite for software-defined radio and low-level systems fixes.
11 years of coding experience
10 years of employment as a software developer
Warsaw University of TechnologyXIV Liceum Ogolnoksztalcace im. S. Staszica, Warszawa
English, Polish
Github Skills (6)
c-language10
system-design10
cprogramming-language10
network-programming9
audio-streaming9
signal-handling8
Programming languages (6)
Github contributions (5)
rtl-airband/RTLSDR-Airband
Jan 2015 - Dec 2022
Multichannel AM/NFM demodulator
Role in this project:
Back-end & System Engineer
Back-end & System EngineerContributions:16 releases, 15 reviews, 419 commits in 8 years
Contributions summary:Tomasz contributed to the core functionality of the "rtl-airband" project, addressing compilation issues and implementing signal handling, including ignoring SIGPIPE and properly releasing GPU memory. They also added features like displaying Shoutcast server status messages. Furthermore, the user focused on network-related improvements by switching to the asynchronous libshout API and introduced robust measures to improve the reliability of audio stream transmission, like reconnecting when the Shoutcast queue size becomes too large.
raspberry-piaviationsoftware-defined-radiopropagationmultichannel
szpajder/dumphfdl
May 2021 - Nov 2022
Multichannel HFDL decoder
Contributions:9 releases, 266 commits, 1 PR in 1 year 5 months
aircraftaviationsoftware-defined-radiortlsdrmultichannel
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.