Resolved critical directory traversal security vulnerabilities across the SaaS platform, materially strengthening API security posture and eliminating a high -severity exposure.

Refactored client -side secret handling to server -side processing and integrated AWS SSM Parameter Store, eliminating hardcoded credentials across the codebase.

Designed and implemented AWS Lambda cold -start optimisation strategies, reducing p95 latency by ~30% and improving overall system responsiveness.

Migrated legacy monolithic .NET 4.8 components to a scalable serverless architecture using AWS Lambda and API Gateway, enabling independent scaling per service.

Delivered a React -based operational dashboard providing real -time system health monitoring, incident tracking, and CI metrics.

Skill set:

- C#
- .NET Core
- .NET 8
- ASP.NET MVC
- Entity Framework
- REST APIs
- Hang fire
- Microservices

Minimum Years of Experience 8+

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📌 .Net Developer (Central Coast)
🏢 XPT Software Australia Pty
📍 Central Coast