Product strategy
Define the first release, technical constraints, and a practical delivery plan.
- Product scope
- Prototypes
- Technical planning
Senior product & engineering studio · Belgrade / worldwide
We buildthe hard part.
Qubit is a senior product and engineering team for software with difficult workflows, serious technical constraints, and real operational consequences.
Selected work
The work clients bring when failure is expensive.
Our strongest work is usually inside the product: critical workflows, platform foundations, and software a team depends on every day.
Request a relevant walkthrough ↗01Digital healthcare↗
Doctor–patient platform
One secure care product spanning appointments, clinical records, messaging, payments, prescriptions, and browser-based consultations.
Product design · Full-stack deliveryJava / Spring Boot / React / Next.js
02B2B commerce↗
Multi-tenant commerce system
Complex catalogues and contract pricing turned into a clear workflow for approvals, orders, payments, and ERP-backed fulfilment.
Platform architecture · Product engineeringJava / Spring Boot / React / Next.js
03Data & analytics↗
Real-time data lakehouse
Streaming and batch pipelines, governed Iceberg data, self-service analytics, and machine-learning-ready datasets in one dependable platform.
Data platform · Backend engineeringJava / Spring Boot / Kafka / Iceberg
Some product work cannot be shown publicly. In a fit call, we can share the most relevant walkthroughs, architecture decisions, and references available for your brief.
What we do
Product judgement. Technical depth. End-to-end ownership.
We lead difficult releases, rebuilds, and platform work from the first decision through production. Senior practitioners stay on the work throughout.
Design & engineering
Design and build production software without separating the interface from the implementation.
- Web applications
- Mobile products
- Design systems
Platforms & AI
Build APIs, data systems, AI workflows, and the infrastructure required to run them reliably.
- Backend systems
- AI integrations
- Cloud infrastructure
Typical engagements
Three ways teams bring us in.
These are common starting points. We agree the scope based on the product, team, and constraints.
Launch a first release.
Take a defined problem from prototype to production with one team responsible for the product and the build.
Rebuild a critical system.
Replace a slow or fragile product while protecting the workflows and data the business already depends on.
Improve a real workflow.
Add AI where it has a clear job, with evaluation, fallback behaviour, and monitoring built into the product.
Working together
Enough structure to move fast. No delivery theatre.
Product definition
Typically 1–3 weeksFor teams that need the product, constraints, and delivery plan made concrete before committing to a build.
Focused build
Typically 6–16 weeksA small cross-functional team owns a defined release, from interface decisions through production deployment.
Embedded partnership
Monthly engagementSenior product and engineering capacity for an existing roadmap, codebase, or platform initiative.
Good fit A meaningful product problem, access to decision-makers, and a team ready to review working software regularly.
Not a fit Staff augmentation by résumé, unpaid speculative work, or a build where nobody can own product decisions.
How projects run
A clear scope. Working software. A clean handover.
A small team works from one shared backlog, with product decisions and implementation handled together.
Scope
Agree on the users, first release, technical constraints, and responsibilities before development starts.
Build
Design and engineering move together. Work is reviewed as working software throughout the project.
Ship
Launch, monitor, fix what matters, and transfer the documentation and ownership your team needs.
Senior people,
close to the work.
Qubit is a senior product and engineering team. We design and build complex software, from scope and architecture through launch and production.
The people you meet are the people doing the work. No account layer. No handoff to a junior delivery team.
More about QubitProductScope & direction
DesignSystems & workflows
EngineeringBuild & production
BelgradeWorking worldwide
Before we start
The practical questions.
If your question is more specific, put it in the project brief. We would rather answer directly than make you decode a sales page.
Can you work with our existing team and codebase?+
Yes. We start with a short product and technical audit, then agree what Qubit owns, what stays with your team, and how decisions are made.
How much does a software development project cost?+
It depends on the release, risk, and team shape. Share a budget range or ceiling early; after scoping, we will propose a realistic plan or tell you plainly when the fit is not there.
Who owns the product and source code?+
You do after the agreed invoices are settled. Repositories, infrastructure access, design files, documentation, and operating knowledge are transferred as part of delivery.
Can we start under an NDA?+
Yes. We can review an NDA before sensitive product details are shared and align with the security requirements relevant to the engagement.
What happens after launch?+
Every release includes stabilisation and handover. Ongoing product development, maintenance, or support can continue when that is the right operating model.
How do time zones work?+
We are based in Belgrade on CET/CEST, with straightforward overlap across Europe and scheduled working overlap for teams farther away.
Contact
Tell us what you're building.
A few sentences is enough. We'll reply with useful questions and a clear next step.
Prefer email?hello@qubit.rs ↗No pitch deck required. An imperfect brief is fine.