State-of-the-art
front-end & back-end systems
Why state-of-the-art? Because every app we create is a unique piece of work
which our team, in cooperation with you, has dedicated its time to
Web Development
Our developers and designers are there to find the best and the most creative solutions for you and help you end up with a reliable product and user experience
Custom Mobile Apps
Mobile apps are timeless. With their number constantly rising, we make sure to deliver an amazing experience combined with high performance across multiple platforms
User Experience
A good user experience should speak to the end user's emotions. Why? Because it's your user's perception of the product that is going to set you apart from all the other apps out there and your competition
Round-the-clock care for your products
We always know what is ongoing and have a good advice
Quality code which will be presented
through excellent UX
The Kolosek team consists of development and designer teams which make sure that clients get to fully experience our product development process — from coming up with a project idea, to design and front-end development, all the way to back-end development
..and also
- Product research
- UI UX Design
- Test driven development
- DevOps
- Project management
- Marketing & Sales
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
Prioritizing privacy & security
We believe in process driven development & privacy of the data
ISO 9001:2013, ISO 27001:2013 USA certification
From the blog
Usually we are writing about what we are interested in doing. Visit our Blog for more
Media Queries
Reading this post, I take it you know things like internet(daaah), browser, responsiveness and good music (I can only hope). With that in mind I will continue the story... Every presentation made for the browser (web presentation) in today's world, can be seen through millions of different devices (if
Problem Solved: Navigation on Scroll
A challenge we recently faced was that we needed to create a navigation that shows only when scrolling up. How did we solve it? Well, firstly, the HTML for the form was created. Keep in mind that while creating the form, Bootstrap was used. Here we have solved the problem