A progressive framework for building user interfaces. Vue is designed from the ground up to be incrementally adoptable.


Built for productivity. Designed with developer ergonomics in mind, its friendly APIs help you get your job done—fast.


We create digital experiences for brands and companies by using creativity & innovative technology solutions.


JavaScript runtime built on Chrome's V8 engine. It's event-driven, non-blocking I/O model makes it lightweight and efficient.


Model–view–controller (MVC) framework, providing default structures for a database, a web service, and web pages


Open-source JavaScript library for building user interfaces. Build encapsulated components that manage their own state.

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Projects We Completed


Client: Squire Our role: Project lead, front-end development in ReactJS Technologies: NodeJS, ReactJS, iOS native Location: San Francisco, New York Y combinator

Squire helps users discover barber shops based on their location. It checks the availability and helps the user to reserve a timeslot. Paying for the service is pretty easy and done in the app.

The biggest challenge with creating Squire was to build the project in three different technologies and combine them in one meaningful, production-ready product. We have managed to overcome this challenge and the results were amazing - the app ended up featuring over 1,000 shop owners. The success has not gone unnoticed, the app is featured in Techcrunch magazine.

GetSquire App - Software Development Company
GetSquire App - Software Development Company


Client: Wrap Our role: Extension of the team in San Francisco Technologies: AngularJS, Ruby, Ruby on Rails, Android Location:San Francisco Raised B round

Mobile engagement technology for deepening relationships, improving loyalty and driving commerce. Tell your story, provide service, or sell products right in the messaging feed. All with no programming, no waiting, and no apps to download.

Working on Wrap was inspiring, to say at least. 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.

Wrap screenshot 1


Client: GrandConsulting Our role: Tech lead, 100% development Technologies:Ruby, Ruby on Rails, Sockets, API Location:San Francisco Rapid development principle

Teletale is a private, enterprise application for in-house handling incoming calls from customers. It has numerous features that can help the business: integrated payment tracking, integrated payment billing, live call recording and many others.

Creating Teletale was a bit challenging. However, we managed to develop full-blown production ready app in 1 month. How? Thanks to Rapid Development approach. We clearly remember that the client's response was just "Well damn, I didn't expect that!". It has been in production since the very first day it was sent to the client.

Private app

StringWire screenshot 1
StringWire screenshot 2