We migrate ageing systems to modern languages, frameworks, and cloud-ready architectures — preserving every bit of your business logic while eliminating the technical debt that's slowing you down.
If it runs your business but nobody wants to touch it — we can help.
Port Visual Basic 6 and Excel/Access VBA applications to modern .NET (C#), Python, or web-based solutions with equivalent functionality.
Rewrite Delphi and Object Pascal desktop apps in modern cross-platform frameworks like C#, Python, or Electron.
Modernise old Java EE / Struts / JSP applications to Spring Boot, microservices, or cloud-native Java 21+ stacks.
Upgrade .NET Framework 2–4.x, WinForms, and WCF applications to .NET 8+, WPF, or modern web alternatives.
Decompose large monolithic applications into independently deployable microservices with proper API boundaries.
Lift, re-platform, or re-architect on-premise applications to AWS, Azure, or Google Cloud for scalability and reduced ops overhead.
We never do a big-bang rewrite. Our phased approach keeps your business running throughout.
We analyse your existing code — size, complexity, dependencies, and undocumented business rules.
We recommend the right migration strategy — rehost, replatform, refactor, or full rewrite — with trade-offs explained.
The new system is built alongside the old one. Both run in parallel — zero forced cutover pressure.
Output parity testing confirms the new system produces identical results to the old one before any users are switched.
Users are migrated in phases with rollback capability — not all at once. Legacy system stays on standby until confidence is high.
We build the new system in parallel with the old one — both run simultaneously. Users are never forced onto the new system until it has been validated and confidence is high. We cut over in phases, starting with low-risk users or modules, with full rollback capability at every stage. There is no big-bang cutover night where everything changes at once and hope for the best.
Yes — these are exactly the stacks we specialise in. VB6, VBA, Delphi/Object Pascal, and .NET Framework 2–4.x applications are the most common legacy desktop codebases we modernise. We audit the existing code, identify all business rules (including undocumented ones embedded in the logic), and rewrite to a modern equivalent — C#, Python, or a web stack depending on what makes sense for your users and workflows.
This is the hardest part of any legacy migration — and the part most vendors underestimate. Our codebase audit phase specifically hunts for implicit logic: conditional branches with no comments, magic numbers, database triggers, stored procedures with side effects, and decades of accumulated special cases. We document everything we find before writing a line of new code. Output parity testing then confirms the new system produces identical results to the old one across real data.
No — we never recommend a full big-bang rewrite. We scope the migration in phases: core business logic first, then peripheral modules, then integrations. This keeps the project financially manageable, reduces risk, and means you start realising the benefits of the new system before the entire migration is complete. The legacy system stays operational throughout.
We include a 90-day post-migration support period in every engagement. During this window we monitor the new system, fix any issues that surface in production, and keep the legacy system on standby as a fallback. After 90 days, when the new system has proven itself in real use, we formally decommission the legacy system together with you.