Matias Korhonen
Senior Software Engineer at Venuu
Helsinki, Finland
Summary
🤩
Rockstar🎓
Top SchoolMatias Korhonen is a Senior Software Engineer with 17 years of experience building Ruby, React, and mobile-first applications from Helsinki. He has shipped production React Native apps and Ruby on Rails backends for healthcare at Kaiku Health and now drives engineering at Venuu, briefly serving as Interim CTO. A hands-on full-stack developer, he contributes to notable open-source projects like RubyGems and Rails Girls Guides, improving security and front-end UX. He’s also organised major Ruby community events (Euruko, Frozen Rails), reflecting a mix of technical depth and community leadership. Notably, his work spans real-time systems and distributed tools—examples include front-end and WebSocket work for the AWS Lambda–powered Goad load tester.
17 years of coding experience
14 years of employment as a software developer
BBA Web Application development Managing information systems, BBA Web Application development Managing information systems at Haaga-Helia University of Applied Sciences
English, Finnish
Stackoverflow
886reputation
167kreached
4answers
2questions
Github Skills (30)
ruby-rails10
javascript10
password-protection10
rubygems10
css10
rails10
user-interface10
security10
ruby10
front-end-development10
passwords10
html10
react10
activemodel10
websocket9
Programming languages (20)
Github contributions (5)
goadapp/goad
Jan 2016 - Feb 2019
Goad is an AWS Lambda powered, highly distributed, load testing tool
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:5 releases, 103 commits, 12 PRs in 3 years 1 month
Contributions summary:Matias primarily focused on developing the front-end user interface for the Goad application, creating components for forms and results displays using React. They integrated a form for URL input and demo results. The user also implemented features to handle binary downloads and incorporated WebSocket functionality for real-time result updates, utilizing technologies such as React, JavaScript, and WebSockets.
aws-lambdalambdatesting
rubygems/rubygems.org
Aug 2019 - Sep 2021
The Ruby community's gem hosting service.
Role in this project:Back-end Developer
Back-end DeveloperContributions:4 reviews, 22 commits, 4 PRs in 2 years 1 month
Contributions summary:Matias primarily focused on enhancing the security and functionality of the RubyGems.org service. Their contributions involved integrating password validation using Unpwn to prevent the use of compromised passwords, moving messages to localization files, and improving the password reset process. The user also made improvements to the gem signature verification process by storing certificate chains in the versions table.
rubyrubygemspackage-manager
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