Legacy assessment
Risk map of modules, dependencies, data coupling, and deployment pain.
Monolith Modernization
Your legacy system runs the business — so we modernize it without stopping the business. Using the strangler pattern, new capabilities ship on a modern stack while the old system keeps serving traffic, route by route.
What this service entails
Modernize in slices, never in a big bang.
Big-bang rewrites stall because they compete with feature work for months. Instead, I place a routing layer in front of your monolith and carve off one capability at a time — authentication first, then billing, then the rest — each slice independently deployable and reversible.
Along the way we pay down the riskiest tech debt: brittle deploys, untested core paths, and single points of failure — with tests and monitoring added before anything moves.
What's included
Strangler routing
Edge routing that shifts traffic slice by slice with instant rollback.
Test safety net
Characterization and contract tests around core paths before migration.
Team handover
Runbooks, ADRs, and pairing so your team owns the new stack.
How we get there
01
Assess
Map risks and pick the first low-risk, high-value slice.
02
Stabilize
Add tests, monitoring, and repeatable deploys to the old system.
03
Extract
Ship slices behind the router, measuring every cutover.
04
Retire
Decommission old paths only after the new ones prove themselves.
Common questions
No. Every slice ships behind routing with dual-run verification, so users never see a cutover — only improvements.
First value ships in weeks, not quarters. Full migrations run slice by slice, so you can pause or reprioritize any time.