Victor Koronen
Developer at Biolit
Stockholm, Sweden
Summary
🤩
Rockstar🎓
Top SchoolVictor Koronen is a pragmatic, quality-focused developer with 15 years' experience building and maintaining web backends and infrastructure, currently based in Stockholm. With an M.Sc. in Computer Science from KTH, he has delivered production systems using Ruby on Rails, Elixir, PostgreSQL, AWS, Terraform and Kubernetes across agencies and SaaS products. He led backend and DevOps work at This is ·Deploy and House of Education, owning everything from architecture and CI/CD to scaling and monitoring for high-profile white-label competition platforms. An active open-source contributor, Victor has improved core Ruby ecosystem projects like bundler and rubygems and enhanced the Fever API for the popular self-hosted RSS reader Stringer, demonstrating attention to maintainability and style. Known for clean refactors and pragmatic fixes rather than flashy rewrites, he combines deep Ruby expertise with a steady focus on long-term code health and operational reliability.
15 years of coding experience
13 years of employment as a software developer
Master of Science (M.Sc.), Computer Science, Master of Science (M.Sc.), Computer Science at KTH Royal Institute of Technology
Swedish, English, German
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (17)
dependency-manager10
apidoc10
rubygems10
enforcement10
rails10
ruby10
package-manager-tool10
sinatra10
api10
bundler10
package-manager10
ruby-on-rails10
rss-reader9
rss9
feed9
Programming languages (9)
Github contributions (5)
stringer-rss/stringer
Jul 2013 - Nov 2019
A self-hosted, anti-social RSS reader.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:177 commits, 47 PRs, 48 pushes in 6 years 4 months
Contributions summary:Victor primarily focused on improving the Fever API functionality of the project. Their contributions included implementing and refactoring features related to the OPML export process, such as changing the file extension and setting the correct content type. They also streamlined the code by renaming methods, removing unnecessary arguments, and extracting response-building logic into separate classes. Further improvements included extracting methods and refactoring the Fever API response to enhance code maintainability.
rss-readerrssrubyfeed-readerfeedjira
rubygems/bundler
Aug 2015 - Aug 2015
Manage your Ruby application's gem dependencies
Role in this project:Backend Developer
Backend DeveloperContributions:37 commits, 6 PRs, 4 comments in 14 days
Contributions summary:Victor primarily focused on code style and formatting within the Ruby on Rails project. Their contributions centered around correcting style violations identified by static analysis tools, such as the `Style/RegexpLiteral` and `Style/WhileUntilModifier` rules. These changes involved modifying code to adhere to established coding style guidelines, ensuring code quality and consistency across the `bundler` repository. Other updates included addressing nested ternary operators, method definitions, and hash parameters.
ruby-applicationrubyrubygemsdependency-manager
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.