Krzysztof Cieślak
Otwock, Masovian Voivodeship, Poland
Summary
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RockstarKrzysztof Cieślak is a pragmatic web developer with 11 years of software experience and an active open-source footprint focused on F# and editor tooling. He has contributed to high-profile projects like Visual Studio Code, the F# compiler, Ionide, and Paket—work that spans backend language services, tooling, and editor UX improvements. His contributions frequently blend engineering and QA: expanding test suites, improving auto-completion and tooltips, and refining routing and dependency handling for real-world frameworks. Trained through a JavaScript full-stack course and driven to land his first web development role, he pairs practical front-end/back-end skills with a strong testing mindset. Known on GitHub as an “OSS Troublemaker,” he brings curiosity and a knack for improving developer experience that often surfaces as small, high-leverage fixes across complex projects.
11 years of coding experience
Stackoverflow
22reputation
54reached
6answers
0questions
Github Skills (64)
visual-studio-code10
unit-testing10
mvc-framework10
url-routing10
editors10
javascript10
electron10
compiler-development10
net10
testing10
language-service10
typescript10
dotnet10
dotnet-new10
code-completion10
Programming languages (19)
Github contributions (5)
SaturnFramework/Saturn
Dec 2017 - Feb 2022
Opinionated, web development framework for F# which implements the server-side, functional MVC pattern
Role in this project:
Back-end Developer
Back-end DeveloperContributions:24 releases, 2 reviews, 311 commits in 4 years 2 months
Contributions summary:Krzysztof primarily focused on refining the Saturn framework's core components, specifically working on its routing and controller functionalities. Their contributions include refactoring the `ScopeState` and the implementation of the `Forward` and `Forwardf` features, indicating efforts to improve the framework's routing capabilities. The commits also involved modifying and extending existing functionality and contributing to enhancements such as tests and samples for the framework.
mvcserver-sideweb-developmentfsharpbackend
ionide/ionide-vscode-fsharp
Oct 2015 - Jul 2022
VS Code plugin for F# development
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:397 releases, 8 reviews, 1173 commits in 6 years 10 months
Contributions summary:Krzysztof primarily contributed to the Ionide VS Code plugin for F# development, implementing core features. Their work included the development of tooltips, linters, and code lenses, enhancing the editing experience. They also integrated F# Interactive (FSI) support, enabling users to run code snippets directly within the editor. Additionally, the user worked on project scaffolding and various solution explorer functionalities.
vscodefsharpionidefableide
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