Open to opportunities

oshini Poojitha Gunawardana

@oshinipoojithagunawa

Message

I am a C#/.NET software engineer specializing in cloud and web applications.

New Zealand

Message

What I'm looking for

I’m seeking a long-term software engineering role building cloud-native C#/.NET systems in Agile teams, with opportunities for technical ownership, mentoring, and professional growth.

I hold a BSc (Hons) in Information Technology and an MBA in IT, with 8+ years building robust C#/.NET solutions. I focus on delivering scalable, maintainable software using modern patterns and cloud services.

I have built end-to-end systems including a clinic & pharmacy management platform, a property management suite, and migrated legacy lab and ERP systems to modern architectures. I introduced React for frontend work, led backend design using .NET Core, and implemented event-driven, CQRS-based services.

Technically, I apply SOLID principles, domain-driven design, unit testing, CI/CD, Docker, and monitoring to ensure production reliability. I have hands-on experience with Azure (Functions, Service Bus, Logic Apps, Blob/Queue storage, API Management, Cosmos DB) and AWS monitoring tools.

I enjoy working in Agile teams, mentoring junior engineers, running demos and knowledge transfers, and taking technical ownership. I am seeking long-term roles where I can grow, contribute to impactful projects, and help teams deliver high-quality software.

Experience

Work history, roles, and key accomplishments

Current

Intermediate C# Developer

Current

Green Leaf Solution Limited

Jan 2025 - Present (7 months)

Developing an end-to-end clinic and pharmacy management system for CBD products, building prescription, payment, and inventory features and integrating partnered pharmacies via secure .NET APIs.

C#).NET Core SQL Server Azure REST Git Shopify Agile

C# Developer

Hill Laboratories

Mar 2023 - Jan 2025 (1 year 10 months)

Contributed to migrating a legacy WinForms lab system to a modern WPF/MVVM architecture and developed .NET Core microservices to improve scalability and reliability of lab analytical workflows.

C#).NET Core WPF MVVM Microservices AWS RabbitMQ Docker SQL Server

Associate Technical Lead

JRC Software (Pvt) Ltd

Aug 2021 - Mar 2023 (1 year 7 months)

Built and maintained core features across multiple property-management apps, designed scalable .NET Core backends using Azure serverless components, and applied CQRS and event-driven patterns to improve system modularity.

C#).NET Core Azure Functions Angular React SQL Server Event Driven Architecture

Senior Software Engineer

Fairleigh Software Services Private Limited

Jul 2018 - Aug 2021 (3 years 1 month)

Maintained and enhanced an internal business process monitoring portal, introduced React.js for frontend improvements, and developed backend .NET Core services and real-time dashboards for system health monitoring.

C#).NET Core React Elasticsearch Webhooks SQL Server IIS Git

Executive Software Engineer

Stretchline Pvt Ltd

Sep 2017 - Jul 2018 (10 months)

Supported and optimized Epicor ERP manufacturing workflows across Sri Lankan and Indonesian plants, resolving live issues and automating production logic using C# and SQL Server stored procedures.

C#)SQL Server T SQL Stored Procedures Performance Tuning

Software Engineer

Virtusa Private Limited

Jan 2016 - Sep 2017 (1 year 8 months)

Developed and maintained multiple client systems including aircraft maintenance CMS and field service reporting tools, delivering testable C#/.NET code and mentoring junior engineers during project work.

C#)WPF MVVM JavaScript SQL AutoFac Git

Associate Software Engineer

Virtusa Private Limited

Dec 2014 - Jan 2016 (1 year 1 month)

Contributed to scalable data movement and web systems for enterprise clients, implementing Web APIs and front-end features while following best practices for testable code and documentation.