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LEGACY SYSTEM RESCUE

Legacy System Rescue

Inherited a codebase nobody understands? Vendor walked away? Production held together with tribal knowledge? We come in, untangle it, and leave you with something maintainable — without a multi-year rewrite.

legacy-rescue / roadmap.yml
Audit
Stabilize
Strangler62%
Migration
No big-bang rewrites. Incremental delivery.
Rescue Capabilities

Untangle, stabilize, modernize

Capability · 01

Codebase & Risk Audit

Deep-dive review of the existing system — architecture, dependencies, hotspots, dead code, security gaps — with a prioritized remediation roadmap.

  • Static analysis + dependency graph
  • Hotspot + complexity mapping
  • Security + license audit
  • Prioritized remediation plan
Capability · 02

Stabilize Production

Stop the bleeding first. Add observability, tighten deploy pipelines, write the missing tests around the dangerous parts.

  • Observability + alerting
  • Deploy pipeline rebuild
  • Test scaffolding around hotspots
  • Incident playbook authoring
Capability · 03

Strangler-Fig Modernization

Incrementally extract modules to new tech without big-bang rewrites — keep shipping value while the platform gets healthier.

  • Module extraction roadmap
  • Strangler-fig routing
  • Anti-corruption layers
  • Zero-downtime cutover
Capability · 04

Data & Platform Migration

Database migrations (Oracle / SQL Server → Postgres), language ports, framework upgrades — done with dual-write, replay, and rollback safety.

  • DB migration (DMS / dual-write)
  • Language / framework port
  • Schema + data backfill
  • Reversible rollout
Capability · 05

Knowledge Recovery

Reverse-engineer business logic, build the runbooks and ADRs the original team never wrote, and onboard your engineers properly.

  • Business logic reverse-engineering
  • ADRs + decision logs
  • Runbook authoring
  • Team onboarding + pairing
Capability · 06

Handover & Enablement

We don't camp on your project. The goal is a clean handover — your team running it confidently after we leave.

  • Pairing-based handover
  • Internal training sessions
  • Documentation + playbooks
  • 30 / 60 / 90-day support
Tech Stack

Technologies We Use

Java.NETPHPPythonNode.jsCOBOLOracleSQL ServerPostgreSQLStrangler-FigDual-Write

Ready to Get Started?

Let's discuss your project requirements and how we can help you achieve your goals.

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