Is your application slow or buggy?
I pinpoint the root causes — not the symptoms. Profiling, query analysis, technical debt reduction, targeted refactoring. All backed by tests to prevent regressions.
From Valenciennes, I step in quickly on struggling projects — on-site with companies in the Nord or remotely throughout France.
What I fix
- Unexplained slowdowns and timeouts
- Memory leaks and excessive CPU usage
- Bugs that are hard to reproduce or occur in production
- Unoptimized SQL queries and N+1 issues
- Technical debt and unreadable code
- Missing or broken unit tests
- Frequent regressions during updates
The tools
Frequently asked questions about optimization
How do you diagnose performance problems? +
I start with profiling (.NET profilers, monitoring tools, logs) to identify the real bottlenecks before taking action. No guesswork — every optimization is based on measured, verifiable data.
Can you intervene urgently on an application in production? +
Yes. I offer emergency interventions with a turnaround within 24 hours subject to availability. I can work on your production environment or on a copy to diagnose and deliver a fix quickly.
What is technical debt and why is it dangerous? +
Technical debt is the build-up of shortcuts and compromises in the code: missing tests, rigid architecture, outdated dependencies. It slows down new features and increases the risk of bugs. The more it accumulates, the more expensive it becomes to pay down.
Do you only work on .NET projects? +
No. I work on .NET/C#, Flutter/Dart, PHP and JavaScript/TypeScript applications. For other languages, get in touch: I can assess whether my expertise is transferable to your context.