Sithira Pathmila Pathirana

Available to hire

NET technologies and Azure.

About

I am Sithira Pathmila Pathirana, a .NET Full-Stack Developer with over 11 years of experience in cloud application development using .NET technologies and Azure. I have designed, developed, and optimized high-performing applications that align with business goals, spanning frontend, mobile and backend development to ensure seamless user experiences and scalable architecture.

I am passionate about delivering robust software solutions, collaborating with stakeholders, and continuously learning new technologies to drive value across projects and teams.

  • 12 years' experience
  • Joined October 2025

Industry experience

  • Software & Internet
  • Computers & Electronics
  • Professional Services
  • Media & Entertainment
  • Financial Services

Work experience· 8 roles

Technical Lead .NET Full Stack · 99X Technology LtdOct 2022 – Oct 2022 · 1 mo

Designed and developed finance-based solutions for Adra by Trintech, including multiple sub-projects: Setup and Auth (permissions and authentication), Private NuGet Repository (core API features such as versioning, documentation, authentication, caching, and logging), Files Hub (secure file transfers), and Shared API (read-only data retrieval). Responsibilities included requirements analysis, architecture design, CI/CD, code quality and best practices, and end-to-end development across UI, backend, and databases.

Senior Full Stack Developer/Co-Project Manager · UC Technology GroupOct 2022 – Oct 2025 · 3 yrs 1 mo

Contributed to designing and developing cloud-based solutions in the insurance domain, ensuring scalable and efficient architecture for two major projects: MyCAT Marketplace and ECM-AI. Responsibilities included requirement analysis and architecture design, CI/CD and release management, code reviews, and full-stack development across UI, backend, and data storage. Technologies used included C#, .NET 6/7/8, EF Core, TypeScript, ReactJS, Hangfire, SignalR, Tailwind, Azure Web Apps, Azure SignalR Service, Azure Storage, AWS ECS, AWS Lambda, AWS SQS, AWS S3, AWS API Gateway, Microsoft SQL Server, and PostgreSQL.

Technical Lead .NET Full Stack · 99X Technology LtdOct 2022 – Oct 2025 · 3 yrs 1 mo

Designed and developed finance-focused solutions for Adra by Trintech, ensuring scalable architecture across multiple sub-projects. Key contributions included IdentityServer4-based authentication/authorization, a private NuGet repository for reusable core functionalities, a secure Files Hub, and a read-only Shared API. Responsibilities encompassed requirement analysis, architecture design, CI/CD and release management, code reviews, and end-to-end full-stack development.

Senior Full Stack Developer/Co-Project Manager · UC Technology GroupOct 2022 – Present · 4 yrs 2 mos
Technical Lead, .NET Full Stack · 99X Technology LtdApr 2019 – Oct 2022 · 3 yrs 7 mos
Consultant - Technology .NET · Virtusa Pvt. LtdApr 2019 – Apr 2019 · 1 mo
Consultant - Technology .NET · Virtusa Pvt. LtdApr 2019 – Oct 2025 · 6 yrs 7 mos
Consultant - Technology .NET · Virtusa Pvt. LtdSep 2014 – Apr 2019 · 4 yrs 8 mos

Education

B.Sc. (Hons) in Computing Science · University College Dublin2010 – 2014
B.Sc. (Hons) in Computing Science · University College Dublin2010 – 2014
B.Sc. (Hons) in Computing Science · University College Dublin2010 – 2014
B.Sc. (Hons) in Computing Science · University College Dublin2010 – 2014

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