Application Modernisation
Keystone Legacy Refresh
Refactored a 15-year-old policy system into a modern, maintainable architecture - without a risky rewrite.
15-yr system modernised · no downtime
Application Modernisation2025
- Client
- Keystone Insurance
- Industry
- Insurance
- Timeline
- 20 weeks
- Year
- 2025
- Built with
- .NET · React · SQL Server · Azure
The story
What Keystone Insurance needed
Keystone's core policy system was 15 years old and terrifying to change - every small update risked breaking something no one fully understood.
We modernised it in careful slices - refactoring, adding test coverage and hardening security - so the team can move fast again, with no big-bang rewrite.
Highlights
What we delivered
✓Incremental refactoring
✓Test coverage added
✓Security hardening
✓No business disruption
Results
The outcome
15 yrSystem modernised
0Downtime
FullTest coverage
“We can finally change our core system without holding our breath.”
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