Jostein Kjønigsen
Software Architect at SuperOffice ASA
Oslo, Norway
Summary
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RockstarJostein Kjønigsen is a seasoned Software Architect in Oslo with 13 years focused on C#/.NET, backend design, integrations and database-driven web solutions, and deep expertise in Microsoft SQL Server administration and optimization. A former Microsoft Certified Trainer, he blends product development experience from SuperOffice with hands-on consulting and training roles, ensuring pragmatic, maintainable architectures. He is equally comfortable in open-source and Linux ecosystems, contributing to notable projects like workspacer (improving lifecycle and concurrency robustness) and enhancing C# support in Emacs LSP and core Emacs modes. Known for meticulous refactoring, resource management, and interoperability work, he often surfaces subtle stability and tooling improvements that pay off in production.
13 years of coding experience
9 years of employment as a software developer
Norwegian, English, German
Stackoverflow
311reputation
122kreached
7answers
1question
Github Skills (35)
javascript10
tree-sitter10
wp-api10
windows10
typescript10
language-server-protocol10
winapi10
emacs-lisp10
netframework10
gmail10
emacs10
typescript-types10
dotnet-core10
window-management10
nodejs10
Programming languages (33)
Github contributions (5)
workspacer/workspacer
Oct 2019 - Jan 2023
a tiling window manager for Windows
Role in this project:
Backend Developer
Backend DeveloperContributions:291 reviews, 85 commits, 187 PRs in 3 years 4 months
Contributions summary:Jostein primarily contributed to the backend of the "workspacer" project, a tiling window manager for Windows, by implementing improvements and fixing existing issues. They focused on code quality by utilizing explicit types and refactoring code. A significant portion of their work involved resource management and lifecycle improvements, with the implementation of the `IDisposable` interface. Furthermore, the user made changes to improve the stability of the application, specifically in regard to preventing concurrency issues and avoiding potential runtime errors.
windowswin32tiling-window-managerwindowtiling
KartikTalwar/gmail.js
Nov 2016 - Oct 2022
Gmail JavaScript API
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:73 reviews, 317 commits, 124 PRs in 6 years
Contributions summary:Jostein significantly enhanced the `gmail.js` library by adding support for Node.js integration, enabling modular loading via `require()` and improving compatibility with build tools like Browserify. They also added TypeScript support, including type declarations to improve code maintainability and type safety for users of the library. Furthermore, the user contributed to the library's utility by adding features that made it easier to integrate with different environments and frameworks.
apijavascriptgmailjavascript-apigoogle-docs
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