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Legacy modernisation.
Move fast without breaking what runs the business.

Modernisation is a multi-year game. We deliver it as a sequence of small, reversible cutovers — each one shipping value, none of them risking the running business.

SVC.05

Legacy modernisation.

Re-platform legacy infrastructure with minimal disruption to live operations. Strangler-pattern delivery, zero-downtime cutover.

Strangler pattern Spring Boot Java 21 TLS 1.3 Domain-driven
// What we deliver
Application assessment
Replatforming strategy
Strangler-pattern migration
Database modernisation
Mainframe offload
Monolith decomposition
API surface design
Cutover & rollback planning
// How we work

Our approach to
legacy modernisation.

Strangler-pattern delivery. Zero-downtime cutover. Audit evidence at every step.

STEP 01

Assessment & sequencing

Two-week deep dive on the legacy estate. We map dependencies, identify the highest-pain modules, and propose a sequence with measurable wins per quarter.

STEP 02

Strangler-pattern migration

New functionality goes into the new stack first. The legacy gets quieter over months — never a flag-day cutover.

STEP 03

Zero-downtime cutover

Dual-running with traffic shaping. We cut over reads first, then writes, with reconciliation manifests at each step.

STEP 04

Deprecation discipline

Old code is deleted, not orphaned. Every retired module gets a written sunset note for the audit trail.

// What you get

Outcomes,
not output.

We measure success by the business outcomes we unlock — not by tickets closed or hours logged.

Zero customer-facing downtime during migration windows.
Audit evidence at every step — no surprises for the regulator.
Lower future cost: fewer servers, fewer licences, fewer specialists holding institutional memory hostage.
// Adjacent capabilities

Related services.

These often ship together with legacy modernisation.

SVC.07

Microservices & integrations.

Explore →
SVC.08

Data & migrations.

Explore →
SVC.01

Custom software.

Explore →

Have a modernisation project to scope? Let's talk.

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