Open to opportunities

Sathieskumar Sudeshkar

@sathieskumarsudeshka

I build full-stack Java and .NET applications with secure APIs, measurable performance improvements, and production-focused architecture.

Sri Lanka

Message

What I'm looking for

I'm looking to build secure, scalable full-stack products where I can deepen my Java/Spring Boot and .NET experience, contribute to thoughtful engineering practices, and solve real user and performance problems.

I've contributed to OpenMRS, an EMR platform used in 40+ countries, with five merged pull requests across its O3 frontend and Java core backend. I improved UUID generation in openmrs-core from 539.8 ns to 5.9 ns per UUID at 32 threads by removing shared-monitor contention.

At Variosystems, I build internal workspace tooling from Blazor WebAssembly components through ASP.NET Core backend logic, streamlining three-plus workflows and delivering two feature modules in Agile sprints.

I also built FreshLink, a B2B fish-supply marketplace with 54 REST endpoints, JWT authentication, PostgreSQL, Redis, and CI-tested concurrency and authorization safeguards. My work spans Java, Spring Boot, React, TypeScript, C#, WPF, and Python.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Software Developer Trainee

Current

Variosystems

Feb 2026 - Present (7 months)

Building internal workspace tooling in Blazor .NET WebAssembly and ASP.NET Core, streamlining workflows and shipping feature modules in Agile sprints.

Blazor ASP.NET Core .NET MVVM Agile