Primeline

Solution

Modernize your legacy system without a risky rewrite

We migrate legacy systems incrementally — strangler-fig, not big-bang — so you keep shipping while the foundation rebuilds itself underneath.

The problem

Your stack is slowing the team down — every change is risky and slow.

The outcome

A modern, typed, observable system the team is fast in again.

Start this engagementTimeline · 12–24 weeks

Fit

Who this is for

  • Engineering leaders inheriting legacy stacks
  • Teams losing velocity to incidents and tech debt
  • Companies modernizing for an acquisition or audit

What you get

  • Strangler-fig migration plan
  • Typed, modular, tested boundaries
  • CI/CD, observability, and rollback safety
  • Documentation your team will actually read

Deliverables

  • Migration plan with sequencing, risks, and rollback paths
  • Typed, modular replacement for each bounded context
  • Observability stack covering both old and new during cutover
  • Architecture decision records and onboarding docs

How it runs

A clear path from where you are to where you want to be.

01

Map

Bounded contexts, dependencies, where the bleeding is.

02

Plan

Strangler-fig migration plan with rollback at every step.

03

Migrate

One bounded context at a time, parity-tested in production.

04

Hand off

Legacy retired, team faster, docs your engineers will read.

FAQ

Modernize your legacy system — common questions

  • No. Big-bang rewrites are how good products die. We migrate one bounded context at a time, in production, with the new and old running side by side until parity is proven. Cutover is a flag flip, not a launch event.

Let's get to "a modern, typed, observable system the team is fast in again".

Tell us where you are today. We'll write back with the smallest engagement that gets you there.