Rewrite the old. Build the new. Faster with AI, accountable in production.
We rewrite legacy applications in a fraction of the usual effort, without a big bang: business rules extracted from the existing code, parity tests before the switch, old and new side by side. We quantify it after analysing your application and context. We also design, build and integrate your web and mobile applications, with AI speeding up the writing and tests deciding what reaches production.
Software has become the bottleneck
Across Belgium and Europe, experienced developers are scarce, ageing systems still carry the core of the business, and AI tools promise a speed that rarely survives an audit. Leaders need delivery that is both faster and defensible.
Legacy that holds the business hostage
The application that runs the core of the business is the one nobody dares to touch. AI-assisted rewriting finally makes replacing it a reasonable decision rather than a gamble.
Too few hands, too many priorities
Hiring senior developers takes months you do not have, while the roadmap keeps growing.
AI code nobody can vouch for
Generated code that is untested, undocumented or careless with data turns a gain in speed into a liability.
What we do
Business applications
Web and mobile tools built around how your teams really work, from internal portals to customer-facing apps, connected to the systems you already run.
Integration
APIs and data flows linking your applications, your ERP and your partners, with authentication, error handling and monitoring designed in from day one.
Application rewrite and modernisation
We read the existing code with AI, extract and document the business rules it really applies, write parity tests that prove the new system behaves like the old one, then run both side by side and switch over step by step.
AI-augmented development
AI accelerates the writing of code, tests and documentation. Specification, human review and automated checks keep control of the result, and your code and data stay within the limits you set.
Expertise & technologies
- React and TypeScript
- Python
- Node.js
- Java
- .NET / C#
- Agentic AI and MCP
- Multi-provider AI models, EU-hosted where required
- Playwright and Vitest
- CI/CD with GitHub Actions
How we work
- 01
Specify
The need is written down and approved before the code, with acceptance criteria and a level of rigour proportional to the cost of an error.
- 02
Test first
Each criterion becomes an automated test. Whether a developer writes the code or AI assists, the work is done when the tests pass and an experienced developer has reviewed it.
- 03
Deliver under control
Every change goes through automated checks on quality, security and dependencies, and ships with its documentation. Progress is shown in working software.
What changes for you
A legacy exit you can plan
The rewrite becomes a sequence of measured steps, each proven by tests, instead of a multi-year programme with a single risky go-live.
Speed you can defend
Shorter cycles from idea to production, with tests and documentation as evidence of what was built and why.
Software you can take over
Readable code, written specifications and up-to-date documentation, so your own teams can maintain the application, with or without us.
Call us when
- A critical application is understood by only one person
- Your roadmap outgrows the developers you can hire
- Systems that should talk to each other still rely on manual exports
- Your teams code with AI and you need rules that hold up
- A legacy application is too critical to stop and too costly to keep
Two ways to work together
Developers in your teams
Experienced developers join your teams, adopt your tools and rituals, and bring our way of working with AI: specify, test, review.
A turnkey project
We take responsibility for delivery, from specification to go-live, with an agreed scope, clear milestones and a single point of contact.
Questions we are often asked
Is code written with AI safe to put into production?
Only when it is treated like any other code. With us, AI assists the writing; every change is specified, covered by tests, reviewed by an experienced developer and checked for security before release.
What happens to our source code and data when you use AI tools?
We agree the rules with you before the first line: which tools are allowed, where data may be processed and what must never leave your environment. Your confidentiality and sovereignty requirements set the frame.
Can you rewrite our legacy application without stopping the business?
Yes, that is how we work. AI helps us read the old code and extract its business rules, which your experts validate. Parity tests are written before anything changes, the new and old systems run side by side, and users move over in stages, with a way back at every step.
Will our teams be able to maintain what you build?
That is the point of the method. Specifications, tests and documentation are delivered with the code, and we can organise a handover to your teams or continue supporting the application, as you prefer.
An application to rewrite, build or connect?
Tell us where it stands today. We will show you how to take it to production, and what it takes to keep it there.
