Witold Szczerba
Senior Developer, Tech Lead at Currency One SA
Greater Poland Voivodeship
Summary
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Rockstar🎓
Top SchoolWitold Szczerba is a Senior Developer and Tech Lead with 13 years of experience designing and delivering resilient, full‑stack systems across finance and enterprise domains. He led architecture and development of Poland’s largest FX platform, driving a move to microservices and asynchronous messaging that accelerated feature delivery and reduced integration costs. Pragmatic about languages and runtimes, he champions functional programming in F#, Elm and FP-style TypeScript while routinely working across Node.js, JVM, .NET, PostgreSQL and MongoDB. Witold combines hands‑on backend engineering with system-level thinking—building ledgers and cross‑service accounting—and coaching teams to adopt maintainable architectures. He also contributes practical open‑source tooling (e.g., an Angular HTTP auth module) and prefers solutions that make code easier to reason about rather than defaulting to OO patterns. Based in Greater Poland, he balances innovation curiosity with a track record of shipping production systems in heterogeneous environments.
13 years of coding experience
9 years of employment as a software developer
Bachelor of Engineering (BE), Management and Marketing, Bachelor of Engineering (BE), Management and Marketing at Politechnika Poznańska
Polish, English
Stackoverflow
123reputation
21kreached
7answers
2questions
Github Skills (17)
http-interceptor10
javascript10
package-development10
plugin-development10
authentication10
user-authentication10
angularjs10
drupal-module10
angular10
error-handling9
bower7
generics6
jestjs6
axios-mock-adapter6
haskell6
Programming languages (16)
Github contributions (5)
witoldsz/angular-http-auth
Aug 2012 - Oct 2017
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:5 releases, 74 commits, 34 PRs in 5 years 2 months
Contributions summary:Witold primarily worked on the development of an Angular module to handle HTTP authentication. Their contributions included the initial module setup, refactoring to improve maintainability (renaming the module and service), and adding a new feature to ignore specific requests. The user also extracted a core component into a separate module for better organization and fixed error handling. Furthermore, they updated the project by merging a bower.json file and making minor formatting changes, including upgrading the version.
witoldsz/api.semux.online
Jan 2019 - Feb 2021
Proxy server for https://api.semux.online and https://api.testnet.semux.online
Contributions:13 commits, 8 PRs, 11 pushes in 2 years 1 month
apiproxy-serverproxysemuxreverse-proxy
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