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I am a Senior .NET Full-Stack Developer with over 10 years of cloud application development experience using .NET technologies and Azure. I have designed, developed, and optimized high-performing applications that align with business goals. My expertise spans frontend, mobile, and backend development, ensuring seamless user experiences and scalable architectures. I thrive in collaborative environments, lead initiatives, and continuously explore new technologies to deliver robust solutions.…I am a Senior .NET Full-Stack Developer with over 10 years of cloud application development experience using .NET technologies and Azure. I have designed, developed, and optimized high-performing applications that align with business goals. My expertise spans frontend, mobile, and backend development, ensuring seamless user experiences and scalable architectures. I thrive in collaborative environments, lead initiatives, and continuously explore new technologies to deliver robust solutions.

SITHIRA PATHMILA PATHIRANA

PRO

Full Stack Developer, Web Developer, Back-End Developer, +2

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I am a Senior .NET Full-Stack Developer with over 10 years of cloud application development experience using .NET technologies and Azure. I have designed, developed, and optimized high-performing applications that align with business goals. My expertise spans frontend, mobile, and backend development, ensuring seamless user experiences and scalable architectures. I thrive in collaborative environments, lead initiatives, and continuously explore new technologies to deliver robust solutions.…I am a Senior .NET Full-Stack Developer with over 10 years of cloud application development experience using .NET technologies and Azure. I have designed, developed, and optimized high-performing applications that align with business goals. My expertise spans frontend, mobile, and backend development, ensuring seamless user experiences and scalable architectures. I thrive in collaborative environments, lead initiatives, and continuously explore new technologies to deliver robust solutions.

Available to hire

Sri Lanka

I am a Senior .NET Full-Stack Developer with over 10 years of cloud application development experience using .NET technologies and Azure. I have designed, developed, and optimized high-performing applications that align with business goals.

My expertise spans frontend, mobile, and backend development, ensuring seamless user experiences and scalable architectures. I thrive in collaborative environments, lead initiatives, and continuously explore new technologies to deliver robust solutions.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Beginner

Beginner

Language

English

Advanced

Work Experience

Senior Full Stack Developer/Co-Project Manager at UC Technology Group

October 1, 2022 - Present

Led design and development of cloud-based insurance solutions, delivering scalable architectures for two major projects: MyCAT Marketplace and ECM-AI. Responsibilities included requirements analysis, architecture design, CI/CD and release management, code reviews, and end-to-end full-stack development across UI, backend, and database deployments. Technologies: C#, .NET 6/7/8, Entity Framework Core, TypeScript, React, 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, PostgreSQL.

Technical Lead .NET Full Stack at 99X Technology Ltd

October 1, 2022 - October 21, 2025

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.

Consultant - Technology .NET at Virtusa Pvt. Ltd

April 1, 2019 - October 21, 2025

Contributed to the design and development of enterprise web and mobile solutions, including Pratt & Whitney HR Onboarding App, Oracle Micros, The TieBar, RideShare, and Petbarn. Delivered a Xamarin Solution Accelerator and a middleware Web API layer to integrate Magento-based e-commerce with third-party apps. Responsibilities included requirement analysis, solution design, full-stack development, and cross-platform mobile development.

Senior Full Stack Developer/Co-Project Manager at UC Technology Group

October 1, 2022 - October 28, 2025

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 at 99X Technology Ltd

October 1, 2022 - October 1, 2022

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.

Consultant - Technology .NET at Virtusa Pvt. Ltd

April 1, 2019 - April 1, 2019

Contributed to the design and development of enterprise web and mobile solutions including Pratt & Whitney HR Onboarding, Oracle Micros cloud-based hospitality system, The TieBar ecommerce platform, RideShare real-time carpooling, and Petbarn integration middleware. Responsibilities included requirements analysis, solution design, full-stack development, and cross-platform mobile development using Xamarin and Ionic.