Legacy Modernization
Big-bang rewrites are how modernisation projects fail. We use incremental strangulation: put a facade in front of the legacy system, migrate one capability at a time behind it, and keep both running until the last route is cut over.
What you receive
Concrete deliverables, defined before work starts and reviewed at handover.
- Legacy assessment with risk and dependency mapping
- Incremental modernisation roadmap
- Facade layer enabling parallel running
- Data migration with validation and reconciliation
- Regression suite protecting existing behaviour
- Progressive cutover with rollback at every step
Typical stack
- Node.js
- PostgreSQL
- Docker
- Kubernetes
- Kafka
- Nginx
Engagement models
- Programme
- Dedicated team
Services often combined with this
Custom Software Development
Bespoke platforms built around how your organisation actually works, not around a vendor's roadmap.
Web Development
Fast, accessible, SEO-ready web applications and corporate platforms built on modern React.
Mobile Apps
Native-quality Android and iOS applications, including offline-first field tools for low-connectivity environments.
Cloud & DevOps
Cloud architecture, containerisation, CI/CD and observability — with the cost model designed in.
Start with legacy modernization
Send us the context and constraints. We will come back with scope, an estimate and the risks we can see from here.
Or email walter.mussagy@gmail.com — we reply within one business day.