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Case study · Software engineering
Legacy C++ platform modernised
How we moved a business-critical processing engine onto a maintainable, supported platform — in stages, with no unplanned downtime. [Placeholder summary]
- Client
- [Client name]
- Sector
- Manufacturing
- Service
- Software engineering
- Duration
- [X] months
The challenge
An ageing system holding the business back.
[Client name] relied on a [X]-year-old C++ application to process every order. Only one supplier understood it, and each change carried real risk. [Placeholder]
Processing runs were slowing as volumes grew, and the platform could not integrate with the new ERP. [Placeholder]
Our approach
Modernise without stopping the business.
We agreed a staged plan that kept the existing system running throughout.
- Audit and stabiliseWe documented the codebase, added automated tests around critical paths and fixed the highest-risk defects.
- Wrap in an APIA new service layer exposed the engine safely, so other systems could use it without touching legacy code.
- Replace in stagesComponents were rebuilt in modern C++ and .NET one at a time, each released behind a switch with rollback.
- Hand over and supportFull documentation, training and a support agreement with defined response times.
The outcome
Faster, safer and ready to grow.
[40%]
faster order processing
[0]
hours of unplanned downtime
[X]
systems now integrated
Technology
What we used
- C++17
- .NET 8
- REST API
- SQL Server
- Azure
- GitHub Actions
Technology list is an example — update per project.
[Client quote about the outcome — e.g. the system is faster, safer and no longer a risk to the business.]
More work
Related case studies.
More projects in similar sectors and services.
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