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Your system has grown over the years – frontend, backend, infrastructure. At some point, every change becomes a risk, every feature takes twice as long, and no developer wants to work on it anymore. We modernize step by step – in parallel operation, without a big bang.
For companies with systems on end-of-life technologies – frontend, backend, or both. For teams that can no longer find developers. For products where every change takes twice as long as necessary.
Your benefit:
Outdated frameworks, end-of-life technologies, no security patches, no community.
Every change takes twice as long because the stack works against you instead of for you.
Frontend and backend are tightly coupled – nothing can be changed independently.
No developer wants to work on a dead stack – neither in the frontend nor in the backend.
The few who know the old stack are expensive and hard to retain.
Knowledge loss with every employee change because the system has grown undocumented.
Rewriting everything at once? Too expensive, too risky, too long.
Daily business cannot wait until the migration is complete.
Dependencies between components make separation seem impossible.
Migration component by component, in parallel operation. Old and new systems run simultaneously. No production stop, no feature freeze, no big bang.
With modern technologies, your team builds features in half the time. Frontend, backend, APIs – decoupled, testable, with a growing ecosystem.
New stack with CI/CD pipeline and automated tests from day one. Each migrated component is better secured than the original.
Modern technologies are what developers want to work with. Recruiting becomes an advantage – in the frontend and the backend.
Deliver first, then commit. That’s what the pilot is for.
6-12 weeks
Which components are the most critical, what dependencies exist between frontend, backend, and infrastructure, where is the most technical debt?
Migration scope, stack decision, parallel operation architecture
Deliverables
Architecture, dependencies, technical debt – documented and prioritized
Cutover plan, sequence, parallel operation architecture
including CI/CD pipeline and development environment
old and new systems run simultaneously
Both. Legacy modernization for us means: frontend, backend, APIs, database, infrastructure – whatever is holding you back. We analyze in the assessment where the most technical debt lies and start there.
Old and new systems run simultaneously. For frontends via micro-frontend architecture or routing-based switching. For backends, new services gradually take over the tasks of the old ones. Ideally, users and customers do not notice the transition.
Depends on the size and complexity of your system. After the pilot, we will know how quickly the rest goes.
Nothing – that’s the point of parallel operation. Components are migrated one by one, and when everything is running on the new stack, we turn off the legacy code. No risk, no big bang.
Yes. New features are built directly in the new stack, existing features continue to run in the old one. This is one of the biggest advantages of gradual migration – no feature freeze.
Database migration is often a complex part of the migration strategy. We analyze in the assessment whether the existing database will be retained, gradually migrated, or operated in parallel. Data loss is not an option – that’s why we plan it carefully.
A clearly defined project with a defined scope – typically 4-12 weeks. You won’t receive a concept paper at the end, but a functioning result: real code, tested and deployed. The pilot shows you what we can do before you make a long-term decision.
After the pilot comes the proof: We look together at the results – what worked, what was worthwhile, where are the gaps? Everything measured against defined KPIs, not gut feeling. Based on this, you decide: scale, adjust, or stop. No pressure, no upselling. If the proof convinces, we go into scale – your project grows, your team grows with it, the knowledge stays with you.
No. The pilot is our recommended entry point because it creates clarity for both sides – but it’s not a must. If you already know what you need and want to get started right away, we can also jump into an ongoing project or start directly with a larger scope. We adapt to your pace.
Start as a timeboxed pilot in T&M (optionally with cap). No fixed price risk, no lock-in. You see at any time what you are paying for – and can stop at any time. But very few do.
If you still have questions, just contact us
Flo looks at your AngularJS codebase without flinching – and already sees the React app hiding inside. Our legacy whisperer.
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