Principal Software Engineer (Node.js | React | TypeScript)

About the job

Job Title: Principal Software Engineer (Node.js | React | TypeScript) Location: Remote Employment Type: Full-time Experience Level: 10+ years Work Roster: 9AM-5PM AEST Who You Are If this sounds like you, we’d love to meet you: • You take ownership of your work and enjoy delivering end-to-end features that make an impact. • You write clean, maintainable code and care about quality, from testing and CI/CD to thoughtful reviews. • You love solving problems, whether it’s debugging, optimising, or shaping architecture. • You’re a true team player who values open collaboration, feedback, and shared growth. • You’re always learning, exploring new tech, side projects, or AI innovations that keep you sharp. About the Role We are seeking a highly skilled Principal Software Engineer with strong expertise in modern web technologies to join our client's team. The ideal candidate will be proficient in Node.js, TypeScript, and React (v18+), with a solid understanding of backend and frontend development, testing frameworks, API integrations, and authentication mechanisms. You will play a key role in designing, developing, and maintaining scalable web applications while collaborating closely with cross-functional teams to deliver high-quality software solutions. Candidates who can effectively leverage AI tools to optimise their development workflow will stand out. Key Responsibilities • Develop, test, and maintain high-quality web applications using Node.js, TypeScript, and React (18+) • Design and implement RESTful APIs and integrate with external systems • Build responsive and performant UIs using Tailwind CSS and TanStack Query • Implement robust authentication and authorization using OAuth, OIDC, and session-based mechanisms • Ensure high code quality with Vitest testing frameworks • Write efficient and maintainable SQL queries and optimize database interactions • Manage source code effectively using Git and collaborate via code reviews and branching workflows • Utilise AI-powered coding assistants (e.g., Claude Code, GitHub Copilot) to improve productivity and maintain code quality • Work with Linux-based environments for development and deployment • Collaborate with designers, product managers, and backend teams to deliver seamless features Core Requirements • Proficiency in Node.js and TypeScript • Strong experience with React (v18+) and modern React patterns • Familiarity with Vitest or Jest testing frameworks • Proficiency in SQL and relational database concepts • Skilled in Tailwind CSS and TanStack Query • Strong understanding of OAuth, OIDC, and session-based authentication • Experience in API development and external API integrations • Competent in using basic Linux command line tools • Strong command over Git for version control and collaboration • Demonstrated ability to maximize AI tools for enhanced development efficiency Highly Desirable Requirements • Experience with Bun and Hono frameworks • Familiarity with AWS CDK for infrastructure as code • Knowledge of PostgreSQL and Drizzle ORM • Hands-on experience with Docker and container-based development • Experience in container-based testing (e.g., Testcontainers) • Exposure to monorepo-based development environments • Proficiency with VS Code and productivity-enhancing extensions

Requirements

• Node.js
• TypeScript
• React
• Tailwind CSS
• SQL

Preferred Technologies

• Node.js
• TypeScript
• React
• Tailwind CSS
• SQL