Backend developer

Salary: RM 5,750 – RM 8,000 per month

About the role

This is a full-time Backend Developer role. You'll design, develop, and maintain the scalable backend services and APIs that power our mobile platform, working primarily within a modern Django + DRF codebase. You'll work from wherever you're most productive, with full timezone alignment to our Hong Kong team (UTC+8).

We are an AI-native engineering team. We heavily leverage AI-powered coding tools (Claude Code, Cursor, Copilot) for both feature development and platform maintenance, and we expect you to actively use, manage, and adapt to these workflows — not as a side experiment, but as the default way we ship.

Day-to-day, you'll collaborate directly with the founder, product, mobile, and front-end teams to refine requirements, deliver features, and resolve issues. You'll participate in AI-assisted code reviews, improve workflows with LLM tooling, write automated tests, and contribute to architectural decisions as the platform scales. Working in a lean team means real ownership from day one.

Key responsibilities

• Design, develop, and maintain scalable backend services and APIs
• Collaborate with founder, product, mobile, and front-end teams to refine requirements and deliver features
• Participate in AI-assisted code reviews
• Improve workflows with LLM tooling
• Write automated tests
• Contribute to architectural decisions as the platform scales
• Resolve issues and maintain platform reliability

About you

• Demonstrable track record adopting and getting real leverage from AI-powered coding tools (Claude Code, Cursor, Copilot)
• Working experience building production services with Django (recent versions) and Django REST Framework
• Hands-on experience with PostgreSQL schema design, indexing, and writing efficient queries
• Comfort building well-structured RESTful APIs and collaborating with client-side teams on API contracts
• Production exposure to GCP (preferred), AWS, or Azure — including basic understanding of secret management, deployment, and monitoring
• Solid grounding in security, performance, and clean code practices, with the judgment to critically review AI-generated output
• Strong written communication and ability to work autonomously in a cross-regional team
• Bachelor's degree in Computer Science, Software Engineering, or equivalent practical experience

About us

Tree3 Health is a Hong Kong-based digital health platform founded in 2021. We partner with major insurers including Prudential Hong Kong, and we're building the next generation of accessible, technology-enabled primary care. Our platform combines a distributed practitioner network, mobile-first patient experience, and integrated medication fulfillment into a single seamless workflow.