Andrzej Telezynski
Senior Systems Engineer at Erlang Solutions Ltd.
Warsaw, Masovian Voivodeship, Poland
Summary
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RockstarAndrzej Telezynski is a Senior Systems Engineer based in Warsaw with 14 years of hands-on experience building and maintaining reliable infrastructure. Currently at Erlang Solutions, he brings deep operational knowledge of distributed systems and pragmatic engineering practices. Andrzej combines long-term production support experience with a systems-level perspective, enabling teams to reduce toil and improve uptime. Though his public GitHub footprint is minimal, his sustained tenure in systems roles suggests strong expertise in Erlang/OTP ecosystems and mission-critical deployments. Colleagues would describe him as steady under pressure and focused on practical, maintainable solutions.
14 years of coding experience
Github Skills (25)
android-client10
xmpp10
erlang10
messaging10
elixir10
mongooseim10
otp10
chat10
gleam10
fault-tolerant10
jabber10
fault10
scalable10
beam9
erlang-otp9
Programming languages (2)
Github contributions (5)
telezynski/MongooseIM
May 2019 - Jul 2019
MongooseIM is a mobile messaging platform with focus on performance and scalability
Contributions:16 pushes, 4 branches in 1 month
messaging-platformperformancemessagingmongooseimmongodb
esl/MongooseIM
Nov 2018 - Mar 2025
MongooseIM is Erlang Solutions' robust, scalable and efficient XMPP server, aimed at large installations. Specifically designed for enterprise purposes, it is fault-tolerant and can utilise the resources of multiple clustered machines.
Contributions:23 reviews, 19 PRs, 47 pushes in 6 years 5 months
fault-tolerantscalablexmpp-servererlangxmpp
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