Modernisation & rescue

Unstick a legacy or half-modernised system without a freeze: bounded extraction, strangler coexistence, and debt triage matched to business risk.

Founder-led. Fixed scope. Ownership left with your team.

The Problem

Big-bang rewrites stall. Lift-and-shift freezes hide the same design. Teams need a path that keeps revenue online while the architecture improves under real traffic.

Who This Is For

  • Product and engineering leaders stuck between a brittle core and a rewrite nobody finishes.
  • Teams whose "modernisation" programme has no safe cutover or coexistence plan.
  • Organisations that need to extract value from a system they cannot fully stop.

What We Deliver

Practical rescue steps in the codebase, not a multi-year programme slide deck.

  • Bounded extraction

    Pull the highest-value slice first so progress is visible and reversible.

  • Stabilise-in-place

    Stop the bleeding on critical paths before larger structural change.

  • Strangler and coexistence

    Old and new run side by side until cutover criteria are real.

  • Debt triage

    What to pay down, wrap, or leave alone, ranked by business risk.

How We Work

Three stages. You keep the system when we leave.

  1. 1
    Read the system

    Map critical flows, ownership, and freeze points.

  2. 2
    Stabilise then extract

    Secure the path, then move one bounded slice.

  3. 3
    Coexist and cut over

    Exit criteria your team can run without us.

What You Leave With

  • A live coexistence path instead of a freeze-or-rewrite false choice.
  • Clear debt priorities tied to risk, not a pure technology wishlist.
  • Ownership of the next extraction steps inside your team.

Discuss your modernisation

Outline the system, what is frozen, and what must keep running. We reply with a technical read. Free, no obligation.

Or email info@mayordomo.co.uk with a short outline.