Move off legacy systems with less manual grind
We modernise legacy systems using AI-assisted code analysis, refactoring and migration tooling, cutting the manual effort of moving off systems nobody wants to touch.
What you get
Scope is agreed with you up front and tailored to your situation. These are the building blocks.
Codebase discovery
Automated analysis and documentation of undocumented systems, dependencies and business rules.
Refactoring and translation
AI-assisted conversion and cleanup of code, with every change reviewed by an engineer.
Test generation
Characterisation tests that capture current behaviour so migrations can be verified, not assumed.
Staged cut-over planning
Incremental migration paths that reduce risk and keep the business running.
Is this right for you?
Organisations running ageing applications whose original authors have moved on, where risk and cost of change keep postponing modernisation.
Common starting points
- Understanding and documenting a poorly documented system
- Moving code to a modern language or framework
- Breaking a monolith into maintainable components
- Building a safety net of tests before changing critical code
From first call to results
Short feedback loops and working output at every step, in overlap with your time zone.
Inventory
Catalogue code, data and integrations and agree what to migrate, retire or keep.
Understand
Extract business rules and build tests that pin down current behaviour.
Transform
Migrate in stages, using AI assistance with human review at each step.
Validate & cut over
Compare old and new behaviour, then switch over with a rollback plan.
Frequently asked
Is AI-generated code reliable enough for this?
AI speeds up the work, but engineers review every change and tests confirm behaviour matches the original.
Will the business be disrupted?
We plan for incremental cut-over and parallel running where possible to limit disruption.
What languages and platforms do you handle?
Scope depends on the system. Share what you run and we will say honestly whether it is a good fit.
Explore more of what we do
Tell us what you are trying to achieve
Share a few details and we will reply with an honest view on whether and how we can help.
Contact Qualsys