Featured projects
Over the years, we have created a number of high-quality apps using different technologies
Our products
We are continuously creating new solutions that transform the way you work
Ruby.ci
Best CI platform for your Rails application
2-min setup with no extra code, tools & UI built for your Ruby on Rails Application
Most complex code for best user experience
Combining Elixir, Ruby and React
Sniffler
The most attentive code reviewer
When a GitHub pull request is opened or updated Sniffler simply integrates with your workflow
Sniffler scans and reports errors with your code and helps you fix them whenever possible
GitPuller
Pull request manager
Get the complete transparency in your product development process without risking access to Intelectual Property
GitPuller does not require actual access to the code on Github
Featured projects
Here are a few recent works we are proud of. For more check our Portfolio
The Next Closet
Marketplace
The largest marketplace for second hand designer brands in Netherlands
Building and maintaining web and mobile app with millions of visitors per month
O.school
Educational platform
Judgment-free, science-based sexual wellness platform · Initial product planning and execution · A virtual classroom app, based on live streaming technology and moderated chat · Featured on Techcrunch
Check outMoviePilot
Your guide to films & cinemas
Alternative of IMDB for Germany speaking market with huge number of visitors
We are sole technology partner using Ruby
on Rails and React for several years
Boardspan
Governance application
One of the leaders in data analytics, board governance and recruiting to help boards do their best work
Being only technology partner for 5+ years and in charge of whole tech stack including API and cross-platform solution
Maintaining good quality with ~95% test coverage
Raised angel and 2 rounds of VC funding
WRAP
Mobile engagement technology
Tell your story, provide service, or sell products right in the messaging feed. All with no programming, no waiting, and no apps to download
The Wrap was a big startup that raised Series B funding. At the time we were working together, Kolosek team had a chance to partner up with around 100 people from the San Francisco office
