Paweł Przeradowski
Senior Software Engineer at Close
Madrid, Community of Madrid, Spain
Summary
🤩
Rockstar🎓
Top SchoolPaweł Przeradowski is a Senior Software Engineer with 13 years of experience, specializing in the Python ecosystem, performance optimization across multiple Python VMs, and C/C++ integration for speed-critical features. He pairs deep PostgreSQL expertise—including internals, zero-downtime migrations for TB-scale datasets, replication, and disaster recovery—with hands-on site reliability and DevOps practice on Linux and AWS. A long-time contributor to high-performance open-source projects (notably work on the japronto HTTP toolkit and C-based parser improvements), he repeatedly delivers scalable, high-RPM SaaS systems for teams across Europe and the US. Fluent in English, Spanish, Portuguese and Polish, he excels at clear technical documentation and coordinating geographically distributed teams, preferring remote roles where his mix of backend, SRE and database skills can have the most impact.
13 years of coding experience
9 years of employment as a software developer
Akademia Górniczo-Hutnicza im. Stanisława Staszica w KrakowieUniwersytet Gdański
English, Spanish, Polish, Portuguese
Github Skills (5)
c1710
c1110
parse10
networking10
performance-optimization9
Programming languages (11)
Github contributions (5)
squeaky-pl/japronto
Oct 2016 - Mar 2020
Screaming-fast Python 3.5+ HTTP toolkit integrated with pipelining HTTP server based on uvloop and picohttpparser.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:745 commits, 28 PRs, 634 pushes in 3 years 5 months
Contributions summary:Paweł primarily contributed to the development and maintenance of a screaming-fast HTTP toolkit and server. Their work involved implementing new features and fixing bugs in the core logic of the HTTP parser using C, specifically related to handling content length, chunked encoding, and various header-related functionalities. They refactored the code to improve performance and memory efficiency, focusing on using byte arrays.
http-serverpipeliningpythonuvloop
closeio/sync-engine
Sep 2021 - Feb 2023
Contributions:320 reviews, 686 commits, 1117 PRs in 1 year 4 months
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