Paweł Polewicz
CEO at Backend Developers LTD
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolPaweł Polewicz is a seasoned technology leader and founder with 12+ years of experience building and managing backend systems, technical teams, and executive support services for startups. He has led companies from CTO to CEO roles, most recently founding Reef Executive Assistants to solve the real-world productivity bottleneck for overloaded founders by providing senior-level assistants with per-second billing and no lock-in. Technically hands-on, Paweł contributed performance-focused back-end improvements to the popular BleachBit project, optimizing file processing and CPU usage. His career spans building high-throughput streaming platforms and creating QA and engineering functions from scratch, demonstrating an uncommon blend of systems-level engineering and operational leadership. Based in Warsaw, he pairs pragmatic engineering instincts with a founder’s understanding of decision fatigue, enabling teams and executives to scale without burning out.
12 years of coding experience
21 years of employment as a software developer
Production Engineering, Production Engineering at Warsaw University of TechnologyEngineer's degree, IT, Engineer's degree, IT at Wyższa Szkoła Technologii Informatycznych w Warszawie
English, Polish
Stackoverflow
3,771reputation
1.6mreached
72answers
0questions
unix
top-5%
linux
top-5%
Github Skills (20)
filesystem10
python10
performance-optimization10
fileio10
binary-files10
unix9
linux9
data-structures8
data-structure8
algorithms8
algorithm8
shell6
socket6
graphviz6
hex-editor6
Programming languages (14)
Github contributions (5)
bleachbit/bleachbit
Jul 2019 - Jul 2019
BleachBit system cleaner for Windows and Linux
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 commits, 3 PRs, 7 comments in 26 days
Contributions summary:Paweł focused on optimizing the performance of the BleachBit cleaner, primarily within the `Action.py` file. The contributions involved implementing caching mechanisms to speed up file processing, improving path filtering efficiency, and refactoring code to reduce CPU usage. These changes included refactoring file path handling, utilizing the `scandir` library, and generally refactoring to increase performance.
bleachbitpythonwindowsdisk-cleanerprivacy
reef-technologies/cookiecutter-rt-django
Sep 2018 - Oct 2022
CookieCutter template for Django application projects with docker-compose etc.
Contributions:59 reviews, 49 commits, 34 PRs in 4 years 1 month
pythondjangodockercomposedocker-compose
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