Software Modernization

Escape the legacy system — without a big-bang rewrite.

We modernize and re-platform aging software incrementally, so you keep shipping and stay live the whole way. No 18-month freeze, no all-or-nothing cutover.

Plan a Modernization Talk to an Architect

Strangler-fig migration · zero-downtime cutovers · incremental delivery · risk-first

The rewrite is where companies get hurt.

Full rewrites are the classic trap: months with no shipped value, a moving target, and a risky cutover at the end where everything has to work at once.

We don't do big-bang rewrites. We use the strangler-fig pattern — standing up the new system alongside the old, routing functionality across piece by piece, and decommissioning the legacy parts as they're replaced. You get value every sprint and you're never one deploy away from disaster.

Show, don't tell

Migrate behind a routing layer — one slice at a time.

Traffic shifts to the new service gradually; the legacy path stays as a fallback until the new one is proven.

gateway.tstypescript

1// Strangler-fig: route each capability to new or legacy2gateway.route("/orders", newOrdersService)        // migrated ✓3gateway.route("/billing", { canary: 0.1, to: newBilling, fallback: legacy })4gateway.route("*", legacyMonolith)                // not yet migrated56// roll the canary 10% → 100% as metrics stay green

Cutover status

orders → new service · 100%

billing → canary 10% · errors flat ✓

rest → legacy (scheduled next)

Every slice is reversible. If a migrated capability misbehaves, traffic falls back to legacy instantly — no heroic rollback.

How a modernization runs.

Assess

Map the legacy system, its risks, dependencies, and the highest-value slices to migrate first.

Strangler layer

Stand up a routing layer so new and old can run side by side safely.

Migrate by slice

Rebuild one capability at a time on a modern stack, with tests and canary rollout.

Cut over

Shift traffic gradually with instant fallback; decommission the legacy piece once proven.

Repeat to done

Continue until the monolith is gone — value delivered the entire way.

Live the whole time

You never go dark to modernize.

Because the new system grows alongside the old, your product stays live and your team keeps shipping features throughout the migration.

Risk is spread across many small, reversible steps instead of concentrated into one terrifying launch night.

Plan a modernization

Ways to engage.

Modernization Audit

1–2 weeks

from $12,000

Legacy + risk assessment
Migration roadmap by slice
Effort + cost estimate

Start an Audit

Incremental Migration

ongoing

from $40,000

Strangler-fig migration
Slice-by-slice delivery
Zero-downtime cutovers

Start Migrating

Re-Platform

project

custom

Move to a modern stack/cloud
Data migration + parity tests
Decommission legacy

Discuss Re-Platform

Common questions.

Why not just rewrite it?

Big-bang rewrites carry enormous risk: long periods with no delivered value and a do-or-die cutover. Incremental migration delivers value continuously and keeps every step reversible.

Can you migrate while we keep shipping?

Yes — that's the entire point of the approach. New and legacy run side by side, so feature work continues during the migration.

What about our data?

Data migration with parity tests is part of the plan; we validate the new system against the old before cutting traffic over.

Which stacks do you modernize?

Most common legacy stacks and clouds. The audit identifies the target architecture and the safest migration order.

Get off the legacy treadmill.

Tell us about the system that's holding you back. We'll map a migration that keeps you live and shipping.

Plan a Modernization Talk to an Architect