Mikkel Kjeldsen is a Chief Software Engineer based in Aarhus with 14 years of experience building reliable, user-focused software across finance and retail. He has led backend architecture and technology decisions at large organizations (Salling Group, Danske Bank), driving database migrations, search improvements, and operational cost savings while mentoring teams in modern practices. Comfortable across Java, Python, Rust and Linux tooling, he combines hands-on coding with strategic platform work—having improved build reliability, caching for high-traffic e-commerce, and protobuf-based integrations. He also contributes to open-source projects, improving maintainability and UX of tooling such as a popular Linux web dashboard. Known for clear documentation, pragmatic trade-offs, and teacherly instincts, he smooths onboarding and shortens feedback loops through process and tooling. His work emphasizes making software that helps people while keeping systems simple, observable, and cost-effective.
14 years of coding experience
10 years of employment as a software developer
Master of Science - MS Computer Science, Master of Science - MS Computer Science at Aarhus University
Contributions summary:Mikkel primarily focused on improving the codebase's maintainability and code quality. Their contributions include significant whitespace and comment formatting improvements, aiming for consistent code style across the project. They also made several functional improvements, such as modularizing the dashboard script and fixing refresh button functionality. Furthermore, they addressed several bugs and code inefficiencies to improve the user experience.
Contributions:1 PR, 3 pushes, 3 branches in 5 years
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Mikkel Kjeldsen - Chief Software Engineer at Danske Bank