About
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
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.
Technologies
Key Achievements
- 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
- Implemented security controls including JWT authentication, API request filtering, and data encryption/obfuscation for healthcare compliance
- Built streaming chat interface and middleware guardrails for a Generative AI platform serving medical professionals, including PII detection and response sanitization
- Configured VPC endpoints, security groups, and IAM roles to ensure secure, compliant cloud infrastructure
- Developed deployment automation scripts (Bash/Python) to streamline release processes
- Provided architectural guidance and code reviews to engineers and interns, maintaining zero unplanned production outages