Senior Backend Engineer (Node.js / TypeScript)

About the role We build a multi-tenant management system for residential care homes for the elderly in Hong Kong, covering resident records, care records, medication management, individual care plans and home finances. Our users are frontline care home staff, and the system handles sensitive personal and health data.

Own the backend architecture: API design, PostgreSQL schema and data model decisions Lead the migration of care homes from a legacy system onto the new platform Run the system in production on AWS: deployment, monitoring, backups, incident response and performance tuning Strengthen security and data privacy, including tenant isolation, access control and audit trails Build and maintain integrations with external platforms, report generation and printing Review code, set engineering standards and mentor other developers Work with care home users to turn requirements into technical design About you 5+ years of backend development, with production systems built in Node.js and TypeScript Expert PostgreSQL skills: schema design, migrations, indexing, query tuning, transactions and locking Hands-on experience running production workloads on AWS (e.g. EC2/ECS, RDS, S3, CloudFront, IAM) Solid experience with Docker, Linux and CI/CD A track record of owning a system in production end to end, from deployment to incident recovery Good written and spoken Chinese, and able to understand how care homes work Comfortable using AI-assisted development tools M