Łukasz Sentkiewicz
Principal Software Engineer Tech Lead at LenelS2
Gdynia, Pomeranian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolŁukasz Sentkiewicz is a Principal Software Engineer and Tech Lead with over 15 years of experience building secure, serverless, and web-based systems for startups, Fortune 500s, big tech and U.S. government clients. At LenelS2 he drives the architecture and delivery of integrated access control, video surveillance and mobile solutions using React, TypeScript, Node.js and AWS/GCP while mentoring teams and instituting best practices. A competitive developer by background—winning multiple TopCoder Open Development Championships and achieving a red rating—he brings a performance-driven approach to problem solving and system design. He is an active open-source contributor, notably improving Remeda, a popular TypeScript utility library, by adding functions, fixing type issues and enhancing tests and docs. Based in Gdynia, Poland, he combines hands-on implementation with long-term technical leadership and a habit of publishing reusable libraries from his own tooling work. Peers describe him as a pragmatic technologist who enjoys hackathons and turning complex security requirements into reliable, user-friendly products.
12 years of coding experience
6 years of employment as a software developer
Inżynier (Inż.), Computer Science, Inżynier (Inż.), Computer Science at Politechnika Gdańska
Github Skills (11)
data-manipulation10
unit-testing10
typescript10
javascript10
functional-programming10
typescripts10
typescript-types10
test-driven-design9
data-structures8
data-structure8
github7
Programming languages (10)
Github contributions (5)
remeda/remeda
May 2018 - Jun 2021
A utility library for JavaScript and TypeScript.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:22 reviews, 79 commits, 67 PRs in 3 years 1 month
Contributions summary:Łukasz primarily contributed to the development of the Remeda utility library, focusing on implementing and refining various functional programming utilities in TypeScript. Their work included implementing new functions like `minBy` and `maxBy`, fixing bugs related to existing functions such as `flatten`, and addressing issues related to type safety and code structure. They also focused on improving the documentation and test coverage to enhance the usability and reliability of the library.
javascripttypescriptutility
typeless-js/typeless
Mar 2018 - Jul 2020
A complete toolkit for building scalable React apps with Typescript.
Contributions:126 commits, 76 PRs, 163 pushes in 2 years 4 months
reacttypescriptreduxrxjs
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