Modernise without the rewrite risk
Your existing systems hold years of business logic and data — we help you unlock that value. Incremental modernisation, AI retrofitting and re-platforming without the risk of a full rewrite. The business keeps running throughout.
What this covers
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AI Retrofitting
Add AI capabilities to systems that weren't built for it
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Strangler-Fig Pattern
Replace piece by piece — zero big-bang risk
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Re-platforming
Move to modern infrastructure, keep business logic
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API Migration
Wrap legacy in modern APIs to enable integration
What this practice covers
Every capability within this practice — from strategy through to production delivery.
AI Retrofitting
Add AI capabilities to existing systems — LLM interfaces, intelligent search, automated summaries — without rebuilding the core.
Strangler-Fig Modernisation
Replace legacy components piece by piece, running old and new in parallel until the legacy system is fully retired.
Re-platforming
Move from on-premise to cloud, monolith to containers, or end-of-life frameworks to modern stacks.
API Layer & Integration
Wrap legacy systems in RESTful or GraphQL APIs so modern frontends and third parties can integrate without touching legacy code.
Code Quality & Performance Uplift
Technical debt reduction, performance profiling, database query optimisation and codebase cleanup.
UI Modernisation
Replace legacy frontends — Winforms, jQuery, desktop apps — with modern React interfaces while keeping the backend untouched.
Our delivery process
A consistent, transparent approach — regardless of project size.
Legacy Assessment
We audit your system — architecture, dependencies, technical debt and business criticality.
Modernisation Roadmap
A phased plan that delivers value at each step — no 12-month dark tunnel.
Strangler Implementation
Build the modern replacement alongside the legacy system, migrating feature by feature.
Data Migration
Careful, validated data migration with rollback plans at every stage.
Parallel Running & Testing
Old and new systems run side by side until the new one is fully validated.
Legacy Decommission
Clean retirement of legacy components with full documentation of the new system.
You'll get the most from this if...
We work best with teams who have a real problem and the mandate to solve it.
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Enterprise software owners
You own a 10–15-year-old system the business depends on but engineers dread touching.
Enterprise · Mid-market -
Companies wanting AI, stuck on legacy
You want AI but your data is locked in a system with no API and no integration layer.
Digital transformation mandates -
Teams with runaway maintenance costs
Your legacy system costs more to maintain every year and slows new feature delivery.
CTOs · Engineering VPs -
Companies post-acquisition
An acquisition left you with a system you didn't build that you need to integrate or retire.
M&A integration
15-year-old monolith modernised into microservices without a single day of downtime
We modernised a mission-critical enterprise application using the strangler-fig pattern — building microservices alongside the legacy monolith, migrating traffic feature by feature, and decommissioning the legacy system over 18 months without any service interruption.
Related services
Ready to modernise without starting over?
Tell us about your legacy system, what's driving the need to modernise and your risk tolerance. We'll design a phased approach.