A studio that builds things to run.
Heaven Interactive is an applied-AI engineering studio in Sofia, Bulgaria. We build, test and operate production AI and software for European businesses. We are small on purpose: senior people, a clear focus, and direct contact with the people doing the work.
What we believe
Too many AI projects stop at the demo: a prototype that impresses in a meeting and never meets a real customer. We work on the part after the demo.
That part is unglamorous. A test set that catches a regression before Friday’s release. A runbook someone can follow at three in the morning. A restore that has actually been tried. A contract that says clearly where the data lives. That is where most of the intelligence in a working system sits.
We do not publish numbers we cannot show you. What we can show you: the projects on this site, the tests we run before anything goes live, and the code you own at the end.
How we work
Honest scope
If a smaller project, an off-the-shelf tool or no project at all is the right answer, we say so on the first call.Measured, then shipped
Acceptance criteria are written before the build, and nothing goes live until it passes them.Ownership
Source code, infrastructure and documentation belong to you at handover.EU by default
EU hosting unless you decide otherwise, with data locations documented.Two languages, natively
We work, write and build in Bulgarian and English.
The principals
Three principals, all in Sofia. The engineer who scopes the work is the engineer who ships it.
Denis Bozhkov
Founder · Full-stack engineer · Database architect · Engineering, data layer, runtime
Designs the data layer and the systems that run on it. Also an environment concept artist for film and games, which shows in how the studio approaches interfaces and visual craft.
Dimitar Roussev
Founder · Full-stack engineer · Database architect · Engineering, platform, integrations
Builds the platform side: integrations, voice and chat agents, and the infrastructure that keeps them running.
Milen Hristov
Co-owner · General counsel · Practising lawyer · Contracts, GDPR, compliance
Handles contracts, data-processing terms and regulatory questions in-house, so legal review is part of every engagement rather than an afterthought.
Data and compliance
EU hosting by default
We deploy in EU regions unless you decide otherwise, and document where each kind of data is processed.GDPR in the contract
Data-processing terms are drafted and reviewed by our general counsel as part of the engagement.Access follows your rules
Role-based access and audit logs are designed in and tested for each role before launch.Transparent AI
Our voice and chat agents introduce themselves as virtual assistants.
Timeline
2024: Founded in Sofia
Heaven Interactive is founded by two engineers and a practising lawyer.2024: First client platforms
A B2B platform for a professional pest-control product line, a website for a Burgas cleaning company, and an outreach optimisation app.2024: Voice-agent framework
Our production framework for Bulgarian and English voice agents, the base of every agent we have built since.2025: Products of our own
An AI dubbing platform, a biological-age tracker, a DNA and dream documentary app, and per-client dashboards for our agents.2026: Seven practice areas
The offer settles into seven practice areas under one method, and this site replaces our first one.
Start here
Bring a real problem.
Thirty minutes with an engineer who would build it. Tell us what is breaking, what you have tried and what would change if it worked.
Book a 30-minute call · info@heaven-interactive.com
- Free, no sales pitch
- Reply within one working day
- Pricing band before any spec work