Modernize and accelerate software
Modernize your legacy system without stopping the business.
We use AI to understand, document and migrate old systems in weeks instead of years, with tests that make sure everything keeps working the same way.
The problem
The system nobody dares to touch.
Nobody really knows how it works
The people who wrote it are gone, there is no documentation, and every change depends on one or two people.
Every change is slow and risky
What should take days takes months, because nobody knows what might break.
Unsupported versions
Outdated languages, frameworks and servers that add security risk and block any improvement.
How it works
Understand first, then migrate.
Diagnostic
AI reads the whole codebase and we build a map of the system, its dependencies and its risks.
Docs and tests
We generate up-to-date documentation and automated tests that lock in how it works today.
Staged migration
We upgrade versions, split modules or move to the cloud, one piece at a time.
Go-live
The new runs alongside the old until a controlled cutover, without stopping the business.
What you get
A system that is yours again.
- Complete map and documentation of the system, that your team can read and maintain.
- Automated test safety net that protects every change, now and later.
- Migrated code in your repository reviewed by engineers, not just generated by AI.
- A trained team and a clear plan for the next stages.
Works with what you already use
Timeline and price
- Diagnostic1 to 2 weeks
- Each migration stage4 to 8 weeks
- PriceFixed scope and price per stage
FAQ
What people usually ask us.
Do we need to stop the system during the migration?
No. We migrate piece by piece, and the new runs alongside the old until it is proven.
Does AI write all the code?
AI speeds up reading, documentation, tests and migration, but an engineer reviews every change before it reaches production.
What happens to my team?
They work with us throughout the project and come out ready to carry on alone.
What if the system is very large?
We start with the module that has the highest return or the highest risk, and move forward in stages, each with a fixed price.
Book a diagnostic
Tell us what you want to automate.
We reply within one business day with a few questions and a time to talk. Calls in English or Spanish.
hello@southkeel.com