Bartek
From Poland (GMT+2)
8 years of commercial experience
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Bartek – Python, Django, React
Bartek is a seasoned Python developer with over 6 years of commercial experience. His interests span programming, software architecture, and DevOps. Known for his curiosity and positive attitude, he excels in web API development, databases, CI/CD practices, web API frameworks, and the cloud and is ready for complex projects.
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ASAPDirect hire
Potentially possibleExperience Highlights
Senior Backend Developer
This is a Fintech platform that enables Clients to make fiat (and crypto in the future) currency transactions, intending to have competitive pricing compared to other players, like Revolut, Wise, etc.
- Created & improved RESTful application
- Implemented transaction endpoint idempotency
- Increased and ensured test coverage
- Improved error handling
- Worked on 3rd party service integration
Senior Back-End Web Developer
This is an application that provides funding for eCommerce sellers who operate on one or multiple platforms.
- Refactored legacy system
- Raised code test coverage from ~30% to over 80%
- Decreased failure rate from 70-80% to around 1-2%
- Decreased onboarding time from ~10-15 min to <3 min
- Added monitoring, including KPI statistics for business
Software Developer
They have created an in-house CDP platform for a 3rd party customer, including data collection, processing, and analysis. The data was User gathered data used to develop Audiences for personalized ad targeting.
- Implemented API
- Implemented piggyback tracking
- Wrote unit, integration, and contract tests
- Rewrote part of docker-deployments into k8s
- Participated in project architecture design
Back-End Web Developer
The application's main feature was to create and manage Facebook and Google ad campaigns in a single place, with a simple interface, and to make it as accessible to others as possible.
- Implemented backend API to manage Facebook campaigns
- Participated in product and architecture design
- Researched Facebook and Google Ads documentation
- Wrote unit and integration tests
- Integrated with different providers