Service 08

Legacy System Modernization with AI

The systems running your business can't stop for a rewrite — and don't need to. We use the strangler-fig pattern: wrap the legacy core, extract capabilities incrementally, and add AI at the seams, with rollback armed at every step.

First extracted capability in 4–8 weeks; full roadmap phased over months, not yearsTypical timeline
4Capabilities
4Deliverables
6Tools & platforms
Typical timelineFirst extracted capability in 4–8 weeks; full roadmap phased over months, not years

What it includes

01
Legacy assessment

A mapped inventory of your monolith or mainframe — data flows, integration points, and the riskiest dependencies — before anyone touches code.

02
Strangler-fig migration

Incremental extraction into microservices behind API facades — each slice shippable, testable, and reversible, with the legacy system as fallback.

03
AI capability injection

Document processing, intelligent routing, and predictive features added at integration seams — new intelligence without destabilizing the core.

04
Zero-downtime cutover

Parallel-run verification, shadow traffic, and staged cutovers with rehearsed rollback — migration as an engineering discipline, not a leap of faith.

What you get

What lands in your hands at the end, not activity reports.

  • System map with dependency and risk assessment
  • Migration roadmap sliced into independently shippable increments
  • Modernized services with contract tests against legacy behavior
  • Cutover and rollback runbooks, rehearsed before production

Where it is used

  • 01Healthcare: wrapping a decades-old records system with HIPAA-conscious microservices
  • 02Finance: adding document intelligence to a core banking workflow untouched since the 2000s
  • 03Logistics: connecting mainframe inventory to modern APIs and agent automation

Tools and platforms we work with

Event-Driven MicroservicesDocker ContainerizationMainframe API IntegrationServerless (AWS Lambda)gRPCStrangler Fig Pattern

Solutions that use it

The same service, framed by the problem it solves.

Related reading

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1–3 weeks for a full audit cycle, scope-dependent