Alex Oleshkevich
Software Engineer at Investerra AG
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolAlex Oleshkevich is a seasoned full-stack software engineer based in Warsaw with 11 years of experience across Python, PHP, Go, JavaScript and Rust, complemented by strong DevOps skills. He has driven architecture and delivery in both startups and established teams, leading migrations (Flask to FastAPI), Kubernetes deployments, CI/CD pipelines and reusable component frameworks. At Orca Security he developed a Terraform provider in Go and maintained SSO/SCIM integrations, and he contributes to the popular Starlette ASGI framework—improving routing, session cookies and template context processors. He builds pragmatic, performance-conscious microservices and developer tooling optimized for mid-range hardware, while mentoring teams to adopt modular, plug-and-play architectures. That combination of framework-level open-source work and infra-focused engineering lets him move easily between high-level design and production reliability.
11 years of coding experience
18 years of employment as a software developer
Bachelor’s Degree, CS, Bachelor’s Degree, CS at Belaruski Dziarzhauny Universitet
Russian, Russian, English, Polish
Stackoverflow
184reputation
13kreached
2answers
6questions
Github Skills (18)
url-routing10
middleware10
python10
http10
websocket10
asgi10
websockets10
templating10
jinja29
testing8
mongodb6
dependency-injection6
doctrine-orm6
php6
doctrine6
Programming languages (11)
Github contributions (5)
encode/starlette
Mar 2019 - Jan 2023
The little ASGI framework that shines. 🌟
Role in this project:
Back-end Developer
Back-end DeveloperContributions:54 reviews, 9 commits, 30 PRs in 3 years 10 months
Contributions summary:Alex primarily contributed to the Starlette framework's backend functionality, addressing issues related to middleware, routing, and templating. They implemented session cookie enhancements, added route representation functionalities, and introduced template context processors. Furthermore, the user fixed bugs, refined code formatting, and updated documentation to improve usability and address missing route details.
asgipythonwebsocketsframeworkasync
alex-oleshkevich/php-fast-xml-parser
Oct 2014 - Jul 2018
Fast SAX XML parser for PHP.
Contributions:19 commits, 3 PRs, 16 pushes in 3 years 9 months
saxxmlphpxml-parserparser
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