Przemysław Szelenberger
Freelance Senior Full Stack Engineer at FTK Development
Bytom, Silesian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolPrzemysław Szelenberger is a seasoned Senior Full Stack Engineer with over 12 years of professional experience and a programming journey that began at age nine, now focused on React, TypeScript, Node.js and scalable web architectures. He has delivered production systems across media, fintech and SaaS—contributing to video platforms at Squarespace, transactional tooling and security hardening at the Warsaw Stock Exchange, and high-traffic frontends for global publishers. Comfortable across frontend and backend stacks, he blends hands-on coding with architectural decision-making, CI/CD, and custom tooling to improve developer experience. Known for pragmatic problem-solving, he has built bespoke build and deployment pipelines when conventional tools were constrained and led full remediation efforts after security audits. Based in Bytom, Poland, he brings deep practical experience with databases (Postgres, Mongo), caching (Redis), and containerized deployments.
12 years of coding experience
17 years of employment as a software developer
BS, Information technologies, BS, Information technologies at WSTI
Stackoverflow
51reputation
31kreached
1answer
0questions
Github Skills (45)
javascript10
nodejs10
react10
math9
css9
codebase8
csscomb8
sublime7
textmate7
android6
certification6
sublime-text6
emmet6
gulp5
plugin4
Programming languages (9)
Github contributions (5)
th3mon/Angular2-GettingStarted
Nov 2016 - Nov 2023
Sample Angular 2 application
Contributions:1 PR, 2 pushes, 1 branch in 7 years 1 month
typescriptangular-2angular-sampleangular
th3mon/stateful-monad
Jun 2018 - Nov 2023
https://egghead.io/courses/state-monad-in-javascript
Contributions:1 PR, 5 pushes, 2 branches in 5 years 5 months
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