Michał Chołuj
Senior Node.js Developer at SportsBroker
Cracow Metropolitan Area Poland
Summary
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SeniorMichał Chołuj is a Senior Node.js developer based in the Cracow area with over a decade of hands-on experience building scalable real-time systems using Node.js, TypeScript, Nest/Express, Socket.IO, Redis and AWS. He has led architecture and delivery of high-throughput services—most notably a voting platform that processed ~40,000 votes per second—while steering teams and product decisions as a former founder and lead developer. Comfortable across backend, cloud, and frontend stacks, he pairs pragmatic engineering with curiosity-driven problem solving to turn complex requirements into reliable, production-ready solutions. Currently contributing to multiple engagements including SportsBroker and Pragmatic Coders, he brings a strong operational focus and a history of adopting emerging web technologies to improve system resilience and performance.
11 years of coding experience
13 years of employment as a software developer
English
Github Skills (7)
expressjs6
middleware4
nodejs4
async-await4
async4
handlers4
javascript3
Programming languages (1)
Github contributions (5)
michal-choluj/express-promisify-router
Nov 2020 - Nov 2020
Write Express middleware and route handlers using async/await
Contributions:5 releases, 25 commits, 14 PRs in 3 days
expressjsasync-awaitjavascriptexpresshandlers
michal-choluj/nest-boilerplate
May 2022 - Sep 2023
Contributions:2 pushes, 1 branch in 1 year 3 months
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