We are the people you call at Day 1000.
A small digital engineering studio with its team in Germany and Spain, working with businesses across the EU. Small enough that you speak to the people writing the code. Kolo is Ukrainian for circle: the life of a system, from Day 0 to Day 1000 — and we stay for the whole circle.
Direct contact with the people writing the code.
No account layer between you and the engineering. You describe the problem to someone who will be in the codebase the same week.
One point of contact
Written decisions
Specialists when needed
Both ends of the line.
We have shipped first releases and we have inherited systems a decade old. The second is harder, and it is most of the work.
- Day 0
It ships
A first release small enough to put in front of real users, and structured so the second release does not require a rewrite.
LaravelReactPostgreSQL - Day 100
It changes
The data model that looked right at launch meets how the business actually works. Integrations arrive. Someone asks for a report nobody planned.
REST APIDocker - Day 1000
It is inherited
The people who wrote it have moved on. The framework is three majors behind. The system is still running the business.
PHPSymfonyMySQLThis is where most projects reach us
Taking a product from concept to a first release: data model, API, web and mobile clients, and the deployment around them. We keep the first version small on purpose.
Reading an inherited codebase, getting it running locally and in CI, upgrading it in steps, and extending it without breaking what the business already depends on.
Most of our work has happened inside other companies’ codebases and other companies’ processes.Working principle
We have spent years working as part of internal teams — their repositories, their code review, their release process, across timezones. Work like that is not judged on a portfolio. It is judged on whether the client keeps you, and that is the reference we have.
The practical detail
- Team in
- Germany · Spain
- Working with
- Businesses in Germany and across the EU
- Languages
- German · English · Spanish
- Engagements
- System-Check · Retainer · Team extension · Project · Consulting
- Hosting
- EU-based, or your own infrastructure
- Sectors
- Restaurant platforms · Data services · E-commerce

