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About

NW

Nigel Wong

Senior Software Engineer

Singapore

I'm a full-stack engineer with 4+ years of experience building scalable applications across healthcare and enterprise domains. Currently at Synapxe, Singapore's national healthtech agency, I lead development of systems that serve 1,000+ clinics nationwide, from patient care dashboards to GenAI platforms for medical professionals. My work spans the full stack: Spring Boot and Angular backends, React frontends, and AWS infrastructure with services like ECS, Lambda, and API Gateway.

I care about building things that actually work at scale. That means writing secure, compliant code for sensitive healthcare data, optimizing database queries to cut execution times by 75%, and architecting cloud migrations that halve page response times. I've led projects end-to-end, from gathering requirements with clinical stakeholders to deploying on production infrastructure with zero unplanned outages.

Before healthtech, I worked on defence platforms serving 300,000+ SAF personnel and started out in enterprise networking at Infosys. I hold a BSc in Computer Science with a specialisation in Digital Systems Security, and I'm an AWS Certified Solutions Architect and Developer Associate. I'm currently exploring GenAI applications, including RAG architecture and LLM-assisted development workflows.

Experience

Senior Software Engineer

Synapxe

Oct 2023 - Present

Leading development of healthcare applications at Singapore's national healthtech agency, spanning AI platforms, patient care systems, and COVID-19 infrastructure serving 1,000+ clinics nationwide.

  • Led end-to-end development of a nationwide Patient Care Summary dashboard using Spring Boot, Angular, and PostgreSQL, serving 1,000+ clinics across Singapore
  • Architected AWS infrastructure migration from EC2 to ECS Fargate, reducing page response times from ~10s to ~4s
  • Designed S3-based data ingestion pipeline with 10 custom Lambda functions to receive, decrypt, and process clinical data from upstream SFTP systems
JavaSpring BootPythonReactAngular

Software Engineer

NCS Pte Ltd

Nov 2021 - Oct 2023

Full-stack development on NSPortal ESS, a self-service platform serving 300,000+ active and reserve Singapore Armed Forces personnel.

  • Refactored Java Spring Boot codebase to improve code maintainability and system performance for a platform serving 300,000+ defence personnel
  • Optimized DB2 queries, achieving 75% reduction in execution time and 90% query cost reduction
  • Managed production deployments using IBM WebSphere, ensuring reliable releases for high-traffic defence application
JavaSpring BootDB2IBM WebSphereJIRA

Systems Engineer

Infosys

Aug 2020 - Oct 2021

Network infrastructure support and development for enterprise clients

  • Resolved complex network issues for enterprise-level corporate networks, developing systematic troubleshooting expertise
  • Completed internal Spring Boot certification, building foundation for transition to application development
NetworkingSpring BootTroubleshooting