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Ruwan Madusanka

@ruwanmadusanka

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I build scalable cloud, payment, and real-time web applications with Node.js, React, TypeScript, and AWS.

Sri Lanka

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What I'm looking for

I'm open to remote opportunities where I can lead delivery, build scalable cloud and real-time systems, mentor engineers, and work closely with clients on meaningful products.

I've built scalable web, cloud, payment, and real-time systems for Random Software, 99x, and freelance clients using Node.js, TypeScript, React, Angular, NestJS, and AWS.

At 99x, I delivered backend and web features for Up Norway, redesigned CI/CD with GitHub Actions and AWS CodePipeline, refactored approximately 70% of legacy code, and optimized payment transaction workflows.

I rewrote Conforma/Ceepos from Cordova to React Native, reengineered its backend with LoopBack 4, and implemented real-time notifications, QR scanning, automated pipelines, and Jest testing.

I also lead delivery for document management, event publishing, project collaboration, and video-rendering platforms, contributing architecture, code reviews, mentoring, production support, and AI-driven workflow automation.

Experience

Work history, roles, and key accomplishments

Current

Associate Tech Lead

Current

Random Software Ltd

Aug 2024 - Present (2 years 1 month)

Developed scalable solutions using Node.js/serverless, TypeScript, MySQL, TypeORM, MongoDB, Angular 20 and AWS. Owned unit testing, production issues, technical bug management and development tasks.

NodeJS TypeScript MySQL TypeORM MongoDB Angular AWS Serverless Unit Testing AI DLC Synthflow LLM LangGraph

Current

Freelancing Software Engineer

Current

Self Employed

Jan 2017 - Present (9 years 8 months)

Led development of multiple projects including a Document Management System, an event publishing platform, and a project management platform. Utilized a variety of technologies including Angular, NestJS, MongoDB, AWS, PostgreSQL, React, Next.js, and Node.js.

Angular NestJS MongoDB S3 EC2 Docker Docker Compose Nginx PostgreSQL TypeORM React Next.js Signals MobX NodeJS MySQL NATS Real Time Collaboration

Senior Software Engineer

99x

Jan 2020 - Aug 2024 (4 years 7 months)

Built backend and web features using Node.js/serverless, TypeScript, TypeORM, Angular, Next.js, AWS and MySQL RDS. Worked directly with clients, UI/UX and technical teams to clarify requirements and deliver solutions.