Paweł Czajkowski's Work | ContraWork by Paweł Czajkowski

Paweł Czajkowski

Paweł Czajkowski

🔧 Crafting Robust APIs & Web Apps for a Decade 🛠️

Ready for work

Paweł is ready for their next project!

Warsaw, Poland

Work Services About

Warsaw, Poland

Cover image for Frontend Development for ChatGPT-like App

Frontend Development for ChatGPT-like App

Cover image for RESTful API for managing cash card

RESTful API for managing cash card

Cover image for Web runtime engine for mobile and smart TV

Web runtime engine for mobile and smart TV

Cover image for Comprehensive Software Design for Public sector

Comprehensive Software Design for Public sector

Cover image for Cloud-Hosted Web Application for Public Sector

Cloud-Hosted Web Application for Public Sector

Join 50k+ companies and 1M+ independents

For independents

Contra Pro Manage freelance projects Get verified as an expert Find jobs Get discovered Sign contracts Send invoices Commission-free payments

For companies

For companies Manage team projects Share hiring workspace Post jobs Discover contractors Sign contracts Approve invoices Global payments & tax compliance

Use Cases

For companies For freelancers For creator tools For agencies For VCs

Resources

Partner networks Advertising Hackathons Creative Human Data Human Creativity Benchmark Human in the loop API Project-based hiring calculator Guide to flexible hiring Guide for agencies Creator tools awards Customer stories Blog FAQs for freelancers FAQs for companies Referrals

Hire Freelancers

Explore all Top independents Design Engineering Marketing Music & audio Social media Video & animation Product Business consulting & HR Other

Company

Mission Careers Terms & conditions Privacy policy Cookie policy

Contact

Contact support

For independents

Contra Pro Manage freelance projects Get verified as an expert Find jobs Get discovered Sign contracts Send invoices Commission-free payments

For companies

For companies Manage team projects Share hiring workspace Post jobs Discover contractors Sign contracts Approve invoices Global payments & tax compliance

Use Cases

For companies For freelancers For creator tools For agencies For VCs

Resources

Partner networks Advertising Hackathons Creative Human Data Human Creativity Benchmark Human in the loop API Project-based hiring calculator Guide to flexible hiring Guide for agencies Creator tools awards Customer stories Blog FAQs for freelancers FAQs for companies Referrals

Hire Freelancers

Explore all Top independents Design Engineering Marketing Music & audio Social media Video & animation Product Business consulting & HR Other

Contact

Contact support

Company

Mission Careers Terms & conditions Privacy policy Cookie policy

© 2025 Contra.Work Inc