Alex Oleshkevich
Software Engineer at Investerra AG
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolAlex Oleshkevich is a seasoned full-stack software engineer with roughly 12 years of professional experience and about 20 years of hands-on coding, currently based in Warsaw and serving as CTO at Starfront Ventures while engineering at Investerra AG. He has led architecture and DevOps efforts across startups and scaleups, driving migrations (Flask to FastAPI), Kubernetes deployments, Terraform provider development, SSO/SCIM integrations, and robust CI/CD pipelines. Comfortable across Python, Go, PHP and modern front-end frameworks, Alex is a pragmatic builder who focuses on reusable modular architectures and performance optimizations for mid-range hardware. An active OSS contributor, he has improved backend capabilities of the popular Starlette ASGI framework, adding session, routing and templating enhancements that benefitted wider Python web ecosystems. He pairs hands-on feature development with mentoring and documentation, and is particularly skilled at turning messy legacy stacks into maintainable, componentized platforms.
12 years of coding experience
18 years of employment as a software developer
Bachelor’s Degree CS, Bachelor’s Degree CS at Belarusian State University
Russian, Russian, English, Polish
Stackoverflow
184reputation
13kreached
2answers
6questions
Github Skills (17)
url-routing10
middleware10
python10
http10
websocket10
asgi10
templating10
jinja29
testing8
mongodb6
dependency-injection6
doctrine-orm6
php6
doctrine6
typescript6
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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