Donie Sweeton

Backend Software Engineer with 3+ years of experience building scalable fintech systems using C#, .NET, and PostgreSQL. Skilled in microservices architecture, event-driven architecture, and RESTful API development. Experienced in developing high-performance systems processing 500+ transactions per second (TPS). Strong expertise in backend development, system design, and database tuning for real-time financial applications.

Software Engineer at Global Software Solutions (TVL) Pvt. Ltd. (2025-01 – 2026-06)

• Built and optimized.NET microservices for fintech payment infrastructure processing 500+ TPS with 99.9% uptime.
• Improved API throughput by 25% using ASP.NET Core and Entity Framework Core query optimizations.
• Implemented event-driven architecture using Kafka and Redis, reducing processing latency by 30%.

Software Engineer at Qantler Technologies (2022-11 – 2024-09)

• Developed scalable ASP.NET Web APIs improving system performance and response times by 30%.
• Optimized PostgreSQL indexing for high-concurrency workloads, reducing database deadlocks by 15%.
• Implemented backend safeguards and input validation to enhance system reliability and data integrity.

Bachelor of Engineering in Computer Science – Francis Xavier Engineering College (2023)