Engineers who make it work
SiriusOne is an agentic engineering company built to take AI beyond pilots. AI does the heavy lifting, while experienced engineers own the decisions and delivery.
AI writes a lot of our code now. Every line still has an engineer who answers for it.
- 60+ selected senior specialists
- Europe based
- ISO/IEC 42001
Our values
We take responsibility for what we ship
The principles behind every decision and every delivery.
Production over pilots
We judge our work by what runs in production, not by what looks good in a demo.
Simple beats clever
We build systems your team can run and change after we leave.
A name on every decision
Agents do the work. An engineer reviews every change and answers for it.
Say it early
If a plan won't work, you hear it from us first, with an alternative.
Your process, your tools
We join how your team already works instead of asking you to adopt ours.
Knowledge stays with you
Documentation, training and handover are part of the work, so you never depend on us.
Leadership
The people who answer for your project
You'll know them by name, and they'll know your system.
Eugene Kulchitski
CEO
15+ years in IT, from hands-on delivery to leading teams behind products used across the globe
Hanna Rabotkevich
CCO
15+ years building relationships across a wide range of industries
Mikhail Vataleu
CAIO
15+ years in tech, from engineering to leading AI strategy for Fortune 500 clients
Artem Anikeyev
CTO
15+ years in cloud — from backend systems to enterprise-wide transformations
Claude Partner Network
(opens in new tab)
SiriusOne is Certified in the Claude Partner Network.
Our engineers hold Claude certifications, and Claude is the model at the core of how we build, modernise and enable.
The Claude Partner Network is how Anthropic works with the firms that put Claude into production for customers. The Services Track recognizes partners for building a certified delivery team, delivering Claude use cases for clients, and proving the work through public customer references.
Learn more about the program claude.com/partners (opens in new tab)
ISO 42001
ISO 27001
ISO 9001
GDPR
Engagement
Four ways to work with us.
Same engineers, either shape. Take a fixed piece of work, or add senior people to your own team.
Fixed price
A clear goal, an agreed budget and a delivery date. We own the result.
Dedicated team
A full team that runs your product or platform end to end, with its own lead.
Team extension
Engineers join your team and processes. You own the roadmap.
Custom mix
Start with a fixed scope, then scale or adapt as your needs evolve.
What’s next on your roadmap?
Tell us what you're working on. A senior expert will get back to you.