Product & R&D
We turn ambiguous ideas into shippable scope. Architecture, prototyping and the hard technical bets — de-risked before you spend a sprint on them.
Budapest · R&D studio & venture builder
We build, ship and back technology ventures.
Kopaxgroup is a Budapest R&D studio and venture builder. We architect, build and operate ambitious software — for clients shipping at scale, and for ventures of our own. Senior hands, end to end.
- 0+
- years building
- 0M+
- users served
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- continents shipped from
Built for production, at scale
From regulated finance and online brokerage to national platforms serving millions of users.
The stack we ship with
TypeScriptReactNode.jsGoRustSolidityPythonKotlinSwiftPostgreSQLDockerKubernetesArgoCDTerraformCloudflareAWSNext.jsGraphQL
What we do
One studio, the whole delivery chain
From the first whiteboard to the on-call rotation. We take ownership of outcomes, not tickets.
Build & ship
Full-stack delivery with modern stacks: TypeScript, React, Node, edge and cloud-native. Tested, reviewed and continuously deployed.
Team augmentation
Plug a senior, pre-vetted team into your roadmap. They ramp fast, follow your standards, and leave you with maintainable code.
DevOps & platform
CI/CD, infrastructure-as-code, observability and cost control. We set up the pipeline and the cloud from A to Z, then keep it boringly reliable.
Fractional CTO
Technical leadership on demand: roadmap, hiring, architecture reviews and the calls investors want to hear answered.
Web3 & DeFi
Smart contracts, on-chain integrations, wallets and trading systems — built by people who have shipped them in production.
Who we work with
One studio, several ways to engage
We keep every door open — because we operate as builders, not as a vendor.
Companies
Build & ship at a senior level
Need complex software architected, built and delivered — not just staffed? We run it end to end: cloud, backend, web and mobile, with the execution speed of engineers who have shipped flagship platforms to millions of users.
Start a conversation Founders & investorsIncubate, build, back, operate
We co-found and operationally build digital businesses — seed the idea, build the product, stand up the infrastructure, and stay in the room as operators. Venture building led by a founder who has built and run companies.
Start a conversation Partners & teamsA senior R&D force multiplier
Studios, agencies and engineering teams partner with us to extend what they can credibly take on — cloud architecture, web3 and DeFi, AI automation and hard-problem delivery, on demand.
Start a conversationHow we work
A delivery model built for trust
- 01
Discover
We map the goal, the constraints and the risks. You get a clear scope and a straight answer on feasibility.
- 02
Assemble
We compose the right team — senior engineers matched to your stack and domain, led hands-on by our CTO.
- 03
Ship
Short iterations, continuous delivery, visible progress. Code reviewed, tested and deployed from day one.
- 04
Scale
We harden, document and hand over — or stay on as your long-term engineering partner. Your call.
Where we go deep
Domains we know inside out
Not generalists pretending. These are fields we have built and operated real systems in.
Talent on demand
Need a team yesterday?
We assemble senior, pre-vetted engineers around your roadmap — embedded in your workflow, accountable to your goals, managed by us.
30+yrs
Who leads it
A founder who builds, ships and operates
Kopaxgroup is led by a 30-year engineer and serial founder — CTO, cloud architect and operator who has shipped flagship platforms to millions of users and built companies from scratch. The people who scope your project are the people who run it.
CTOLead EngineerDevOpsFullstack Engineer
More about the studio References
What the people who shipped with us say
“Dimitri is an impressive developer, standing out for his speed of execution and his ability to tackle subjects, whether particularly complex or entirely new. He played a decisive role for 3 years and quickly established himself as a reference for several teams. He has been a true asset to the team.”
“I worked with Dimitri on an application used by more than 2 million users. The stakes were high and quality was key — it was very reassuring to work with him. His ability to get work done while keeping a close eye on quality helped a lot when delivering new features. I would recommend without doubt.”
“He worked with unparalleled determination on the most structuring functionalities of the project. With his technical expertise, he quickly established himself as a lead within our development team. He was the bearer of many technical improvement projects. I recommend him strongly.”
“I worked in Dimitri’s team on a national project as a senior developer. I really appreciated his speed of execution, his ability to handle a huge workload in record time while maintaining impeccable code quality, and the full extent of his technical expertise — which helped to unlock the team several times.”
“Dimitri masters many technologies covering the entire field of DevOps. He manages projects in their entirety — develops tested code, sets up the CI/CD pipeline, and deploys it on infrastructure he has built from A to Z. He integrates new APIs and external services without delay. I highly recommend him.”
“Dimitri has a lot of energy and finds ingenious solutions that meet the needs of the project — with quality and on time. His broad knowledge of technologies lets him make the right technical choices. I highly recommend.”
Where we are
Based in Budapest, building worldwide
Our studio sits in the heart of Budapest. We work async-first across European and global time zones — and we are on-call when it counts.
Start a conversationHave a project that has to ship?
Tell us what you are building. We will tell you, honestly, how we can help.