Platform Modernisation

Legacy platforms modernised in slices - without stopping the business

Where this usually starts

None of this is unusual. It is what a fintech platform looks like a few years after it started working.

A platform nobody on the team wants to touch, let alone extend
Releases that take a fortnight of manual checking before anyone trusts them
One person who understands the settlement logic, and no backup for them
Integrations that break every time a dependency or a lender API updates

What you get

Your legacy platform modernised incrementally, riskiest flows first, while the business keeps running throughout.

It is familiar ground: we have built our own broker and lender CRM, lender matching engine and quote engine, each recorded and screenshotted on its own page.

How the engagement runs

1

Audit findings become the slice plan

The Platform & Delivery-Risk Audit's remediation roadmap gets ordered into 90-day slices, riskiest flows first - money, then data, then UX. You see the full slice plan before any slice starts.

2

Acceptance criteria agreed in writing

Before we touch code on a slice, we agree in writing what “done” looks like for it - the specific behaviour, data and flows that must work, and how we'll prove it.

3

Build and cut over slice by slice

Each slice ships against its own production cutover plan, so nothing routes around the live system. The business keeps taking applications and processing settlements throughout.

4

You sign off, then the next slice starts

Each slice is checked against its written criteria before we call it done. Sign-off is yours to give; the next slice begins once you have.

What's included

90-day delivery slices
Riskiest flows tackled first - money, then data, then UX
Written acceptance criteria per slice
Production cutover plan per slice
The business keeps running throughout - no downtime cutover

What we need from you

Structured time from whoever holds the tribal knowledge - usually a few hours a week once a slice is underway - and a decision-maker who can sign off acceptance criteria without a long approval chain.

What "done" means

Each slice has its own written acceptance criteria, agreed before build starts. “Done” is not a demo - it is that slice's flows working in production, cut over without downtime, and signed off against what was written down at the outset.

Questions this answers

Can we modernise without a big-bang rewrite that risks the business?
How do we keep releasing safely while this work is happening?
What happens to the person who is the only one who understands the old system?

Timeframe

90-day slices, scoped to a program length that fits your platform

Not included

  • Big-bang rewrites
  • Open-ended refactoring

Start with the audit

Modernisation engagements are scoped from the findings of aPlatform & Delivery-Risk Audit.