Open to opportunities

Nipun Silva

@nipunsilva

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Senior full-stack developer focused on secure, scalable web applications and modernization.

Sri Lanka

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What I'm looking for

I’m looking for a role where I can build secure, scalable web systems end-to-end, lead collaboration in remote teams, and own production-grade delivery—especially modernization and security-focused engineering with strong code review and Agile execution.

I’m a Full-Stack Software Engineer with 6 years of experience designing, building, and maintaining secure, scalable web applications across the full development lifecycle—from requirements through deployment and production support. I currently lead an 8-person team on a 24-month, 9-system legacy modernisation programme.

My work spans React.js front ends, Java/Spring Boot back ends, and relational/NoSQL databases. I own end-to-end technical direction across the SDLC—requirements, architecture, UI/UX-aligned design, testing, deployment, and production support—while collaborating closely with product managers, designers, and cross-functional engineering teams in a remote setting.

Security is a core part of how I build. I delivered a national digital identity integration that passed all VAPT audits with zero critical findings, implementing PKI, digital certificates, and OAuth 2.0-based identity flows with security as the primary design constraint. I’m comfortable owning code review standards, troubleshooting production issues, and applying security patches across enterprise environments.

Beyond feature delivery, I improve system foundations: I authored reusable internal Java libraries adopted across Spring Boot microservices to reduce duplicate code, and I’ve led migrations to secure Java Spring Boot microservices with event-driven messaging. I also enjoy deep technical exploration through public projects, like my ECIES fintech architecture work, to continuously strengthen applied security architecture.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer (Project Lead)

Current

Maritime Port Authority of Singapore

Feb 2024 - Present (2 years 5 months)

Project Lead leading a cross-functional 8-person team modernising 9 legacy enterprise web systems into a secure Java/Spring Boot microservices architecture across the full SDLC. Built the SingPass National Digital Identity integration and delivered it with PKI/digital certificates and OAuth 2.0, passing VAPT/security audits with zero critical findings and supporting 50+ downstream systems.

Java Spring Boot Microservices REST APIs NoSQL OAuth PKI VAPT Production Support SDLC

Senior Software Engineer

Zincat Technology

Aug 2022 - Feb 2024 (1 year 6 months)

Led migration of a legacy system to secure Java Spring Boot microservices, integrating Kafka for event-driven messaging and OAuth for access control, and optimised Oracle SQL query performance. Also owned full-stack ERP delivery with Java Spring Boot, React/Redux, REST APIs, OAuth, and Kubernetes/Docker deployments, plus Agile ceremonies, code reviews, and mentoring.

Java Spring Boot Microservices Kafka OAuth Oracle React Redux REST APIs API Gateway MySQL Docker Kubernetes Agile Scrum Code Review Mentor

Freelance Full Stack Developer

Self-Employed

Jul 2020 - Feb 2024 (3 years 7 months)

Delivered end-to-end RESTful backend APIs and responsive frontends for remote clients using Java/Spring Boot, Angular/React, Redux, MySQL, and Docker while managing multiple concurrent engagements.

Java Spring Boot Angular React Redux REST APIs MySQL Docker

Junior Software Engineer

Zincat Technology

Aug 2021 - Aug 2022 (1 year)

Developed and maintained ERP web application modules using Spring Boot, React.js/Redux, MySQL, and containerised deployments with Docker and Kubernetes.

Java Spring Boot React Redux MySQL Docker Kubernetes REST APIs

Trainee Software Engineer

Feanix Labs

Jul 2020 - Jul 2021 (1 year)

Built training projects spanning Java Spring Boot, Vue.js, React Native, Quasar, Golang, and Python to gain foundational full-stack development experience.

Java Spring Boot Vue.Js React Native Python Full Stack Developer