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Hi, I’m Nishan Jayasinghe, a Senior Full-Stack Developer with 14+ years delivering mission-critical web applications on the Microsoft stack. I specialise in C#, .NET, React, SQL Server, and Microsoft Azure, with recent focus on architecting and maintaining large-scale Blazor and React apps for Melbourne-based product companies. I thrive in Agile/DevOps environments, design scalable microservices, and implement Clean Architecture patterns to ensure maintainable, testable software. I hold an MSc in IT from University College Dublin and am comfortable working remotely in NZ business hours. I’m passionate about mentoring teams, conducting code reviews, and upholding security-conscious development practices aligned to ISO 27001.…Hi, I’m Nishan Jayasinghe, a Senior Full-Stack Developer with 14+ years delivering mission-critical web applications on the Microsoft stack. I specialise in C#, .NET, React, SQL Server, and Microsoft Azure, with recent focus on architecting and maintaining large-scale Blazor and React apps for Melbourne-based product companies. I thrive in Agile/DevOps environments, design scalable microservices, and implement Clean Architecture patterns to ensure maintainable, testable software. I hold an MSc in IT from University College Dublin and am comfortable working remotely in NZ business hours. I’m passionate about mentoring teams, conducting code reviews, and upholding security-conscious development practices aligned to ISO 27001.

Nishan Jayasinghe

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

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Hi, I’m Nishan Jayasinghe, a Senior Full-Stack Developer with 14+ years delivering mission-critical web applications on the Microsoft stack. I specialise in C#, .NET, React, SQL Server, and Microsoft Azure, with recent focus on architecting and maintaining large-scale Blazor and React apps for Melbourne-based product companies. I thrive in Agile/DevOps environments, design scalable microservices, and implement Clean Architecture patterns to ensure maintainable, testable software. I hold an MSc in IT from University College Dublin and am comfortable working remotely in NZ business hours. I’m passionate about mentoring teams, conducting code reviews, and upholding security-conscious development practices aligned to ISO 27001.…Hi, I’m Nishan Jayasinghe, a Senior Full-Stack Developer with 14+ years delivering mission-critical web applications on the Microsoft stack. I specialise in C#, .NET, React, SQL Server, and Microsoft Azure, with recent focus on architecting and maintaining large-scale Blazor and React apps for Melbourne-based product companies. I thrive in Agile/DevOps environments, design scalable microservices, and implement Clean Architecture patterns to ensure maintainable, testable software. I hold an MSc in IT from University College Dublin and am comfortable working remotely in NZ business hours. I’m passionate about mentoring teams, conducting code reviews, and upholding security-conscious development practices aligned to ISO 27001.

Available to hire

Hi, I’m Nishan Jayasinghe, a Senior Full-Stack Developer with 14+ years delivering mission-critical web applications on the Microsoft stack. I specialise in C#, .NET, React, SQL Server, and Microsoft Azure, with recent focus on architecting and maintaining large-scale Blazor and React apps for Melbourne-based product companies. I thrive in Agile/DevOps environments, design scalable microservices, and implement Clean Architecture patterns to ensure maintainable, testable software.

I hold an MSc in IT from University College Dublin and am comfortable working remotely in NZ business hours. I’m passionate about mentoring teams, conducting code reviews, and upholding security-conscious development practices aligned to ISO 27001.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Advanced

Sinhala, Sinhalese

Fluent

Work Experience

Senior .NET / React Developer at Dijital Team / OSC Data / Pierce Solutions

June 1, 2023 - Present

Architect and develop large-scale Blazor & React web applications for Australian enterprise clients, focusing on end-to-end feature design and delivery. Design and build RESTful APIs using ASP.NET Core Web API with Clean Architecture and Microservices patterns. Implement and manage CI/CD pipelines on Azure DevOps; deploy and monitor applications on Microsoft Azure (App Services, SQL, Blob Storage). Conduct thorough code reviews, enforce best practices, and mentor junior developers within Agile Scrum teams. Collaborate with Melbourne-based Product Owners and stakeholders to translate business requirements into high-quality software solutions. Maintain SQL Server databases with complex T-SQL queries, stored procedures, and performance optimisations.

Senior Software Engineer at Content Management and Solutions (Pvt) Ltd

January 1, 2013 - June 30, 2023

Led full-stack development of a large-scale B2B/B2C e-commerce platform (inmac wstore), supporting 1M+ product catalogues across multiple stores. Migrated a legacy Classic ASP monolith to ASP.NET Core Web API (Clean Architecture), with React and Blazor-powered internal tooling. Built and maintained ASP.NET Razor / Bootstrap / jQuery frontends within a multi-tier architecture. Owned the CI/CD pipeline on on-premise Azure DevOps Server; version control with TFS and Git/BitBucket. Practised a zero-bug policy within Agile Scrum; authored unit and integration tests. Contributed to ISO/IEC 27001:2022 certification. Managed SQL Server backend: T-SQL, stored procedures, and multi-centre deployments.

Software Engineer at Peercore IT

January 1, 2011 - January 31, 2013

Developed a CRM (PeerCRM) and Transport Management System (PeerTMS) in C# .NET 4.0 / WPF / SQL Server, collaborating remotely with Australian PM and Product Owner. Applied MVVM, MVC, Singleton and Observer design patterns; worked with Ingres and SQL Server databases. Handled requirement analysis and system design documentation.

Software Developer at Cargills Ceylon PLC (Food City / KFC)

January 1, 2009 - January 31, 2011

Full SDLC ownership of internal applications for Sri Lanka's largest supermarket chain (160+ outlets). Built POS and inventory systems integrated with JDE Edwards ERP and AS400; developed SSRS / SSIS reporting. Gained broad experience: WinForms, Web Apps, MySQL, Oracle, Linux, Web Services.

Software Developer at Tonyflex Pvt Ltd

March 1, 2006 - March 31, 2008

Developed standalone and web applications using WinForms, SQL Server, PHP, MySQL, and JavaScript for manufacturing and distribution operations. Computerised manual processes end-to-end: purchasing, manufacturing, sales, and transport management.