Lasindu Nuwanga Weerasinghe
Available to hire
I’m a Senior Software Engineer with 6 years of experience building scalable, resilient, observable full‑stack systems using .NET, Node.js, and Next.js. I focus on clean code, teamwork, and pragmatic engineering.
I routinely apply patterns such as DDD, TDD, Microservices, Onion Architecture, CI/CD, AI integrations, and cloud integrations to deliver robust software and maintainable systems.
Skills
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Expert
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Language
English
Advanced
Work Experience
Senior Software Engineer at Economic Development Board
May 1, 2023 - PresentDeveloped and maintained .NET APIs, libraries, batch jobs, and a large-scale CRM system in a private AWS cloud. Migrated a sizeable JavaScript codebase to TypeScript. Automated SonarQube scanning, unit testing and deployments by creating GitLab CI/CD pipelines. Strengthened security with AWS VPCs, ALB/NLB firewalls and strict IAM policies. Reduced downtime by monitoring EC2 instances with Elasticsearch and cloud logs.
Senior Software Engineer at Lukfo AI
September 1, 2023 - May 1, 2024Built AI-powered e-commerce system including conversational chat and image analysis. Created a general-purpose API using .NET and a NextJS frontend. Implemented semantic image search using Pinecone and OpenAI embeddings. Designed microservices and AI workflows; introduced Azure Service Bus for event-driven communication.
Senior Software Engineer at HCL Technologies
June 1, 2022 - September 1, 2023Built a Microsoft Dynamics 365 CRM solution for a Singapore public-sector organization. Migrated a .NET API to NestJS API to leverage MongoDB with Prisma. Reduced runtime errors by converting HTML/JS to reusable React TypeScript PCF components. Collaborated on system architecture with class diagrams and ER diagrams.
Software Engineer at QualitApps Europe
May 1, 2021 - May 1, 2022Delivered two enterprise web platforms (Leave Management and Insurance Management) for a Spanish client. Implemented notifications using SignalR and Hangfire in .NET. Improved maintainability by introducing coding standards, reducing bug-fix turnaround. Reduced releasing times by using Azure DevOps CI/CD.
Chief Technology Officer at Shield Technologies
June 1, 2020 - March 1, 2021Enhanced coordination between drivers and passengers using Google Maps APIs, in a courier service system. Increased application speed by offloading client work to server-side SSR features of NextJS. Integrated Zoom into a LMS using Zoom APIs. Built and mentored cross-functional teams, enforcing engineering best practices and participating in architecting.
Software Developer at Fiverr
August 1, 2019 - December 1, 2021Delivered 25+ custom desktop applications using .NET WinForms, C#, and VB.NET. Solely engineered requirements, prepared documents and estimated times for projects. Maintained a consistent 5-star rating through reliable delivery and clear communication.
Senior Software Engineer at Economic Development Board
May 1, 2024 - April 1, 2026Developed and maintained .NET APIs, libraries, batch jobs, and a large-scale CRM system in a private AWS cloud. Reduced runtime errors by converting a sizeable JS codebase to TypeScript. Automated SonarQube scanning, unit testing and deployments with GitLab CI/CD pipelines (YAML & PS). Strengthened security with strict IAM policies, VPCs, and ALB/NLB firewalls. Reduced downtime by monitoring EC2s and logs with Elasticsearch.
Education
Bachelor of Science: Information Technology with a specialization in Software Engineering at Sri Lanka Institute of Information Technology (SLIIT)
January 11, 2030 - November 1, 2023Bachelor of Science in Information Technology (Software Engineering) at Sri Lanka Institute of Information Technology (SLIIT)
January 11, 2030 - November 1, 2023Bachelor of Science in Information Technology with a specialization in Software Engineering at Sri Lanka Institute of Information Technology (SLIIT)
January 11, 2030 - November 1, 2023Qualifications
Google Hash Code 1st place in SLIIT
January 11, 2030 - March 9, 2026Mozilla Club 2021 & 2022
January 11, 2030 - March 9, 2026Microsoft Certified: Dynamics 365 Fundamentals (CRM)
January 11, 2030 - March 9, 2026Google Hash Code (1st place in SLIIT Mozilla Club)
January 11, 2030 - March 30, 2026Microsoft Certified: Dynamics 365 Fundamentals (CRM)
January 11, 2030 - March 30, 2026Google Hash Code - 1st place (SLIIT Mozilla Club)
January 1, 2021 - May 13, 2026Google Hash Code - 1st place (SLIIT Mozilla Club)
January 1, 2022 - May 13, 2026Microsoft Certified: Dynamics 365 Fundamentals (CRM)
January 11, 2030 - May 13, 2026Industry Experience
Software & Internet, Government, Professional Services
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