Full Stack Developer (Node.js, React)

About the role

3M Consultancy is looking for a Full Stack Developer in Melbourne, Australia, to join its early-stage startup. The role involves building and scaling a Node.js backend and a React-based frontend while working closely with the founders and the early team. Experience at a software vendor (SaaS, PaaS or product company) and with microservice or service-oriented systems is required; the current system is not strictly microservice-oriented, but such experience helps shape API design, service boundaries and scalability.

Key responsibilities

• Build, maintain and iterate on the core application across the Node.js backend and React frontend.
• Develop new features end-to-end, from technical design through implementation, testing, deployment and ongoing improvement.
• Apply experience from microservice or distributed-system environments to clean system design, well-defined interfaces and maintainable service boundaries.
• Partner with founders and product stakeholders to define requirements and shape user-facing functionality.
• Take part in system design discussions, architecture decisions and long-term technical planning.
• Collaborate on integrations and workflows involving asynchronous processing, data movement or transformations.
• Help establish early engineering processes, coding standards and development best practices.
• Experiment, prototype and validate concepts quickly.

Required profile

• 3+ years of professional software development experience (flexible depending on candidate strength).
• Experience working at a software vendor or product-based company.
• Prior experience building or working within service-oriented or microservice-based systems, with an understanding of API design and system boundaries.
• Ability and willingness to work as a full-stack generalist across frontend, backend and system design.
• Strong problem-solving and debugging skills.
• Willingness to work in a fast-moving, ambiguous early-stage startup environment.

Required skills

• Strong JavaScript/TypeScript, Node.js and modern frontend frameworks (React preferred).
• Cloud environments (AWS preferred).
• Nice to have: event-driven systems, message queues, asynchronous workflows, data engineering tools (AWS Glue, AWS AppFlow, Apache Kafka), data warehouses (Redshift, Snowflake, BigQuery), CI/CD, observability, and previous early-stage startup experience.