Senior Full Stack Developer – Contract (Auckland)

About the role

We are looking for a Senior Full Stack Developer to design, build and maintain end‑to‑end web applications for our Auckland team. The role involves both front‑end and back‑end development, ensuring high performance, security and scalability.

Key responsibilities

• Design, develop, test, deploy and maintain full‑stack web applications.
• Build responsive, accessible front‑end interfaces using React and/or Angular.
• Develop secure, scalable back‑end services and APIs with Java and Spring Boot.
• Design and optimise database models and queries for relational or NoSQL stores.
• Integrate internal and third‑party systems via REST APIs and secure authentication mechanisms.
• Collaborate with product owners, architects, designers, QA, DevOps and security teams.
• Participate in sprint planning, estimation, backlog refinement and other agile ceremonies.
• Contribute to code reviews, debugging, performance tuning and production issue resolution.
• Write and maintain unit, integration and API tests to ensure reliable delivery.
• Create and maintain technical documentation, including API specifications and deployment guides.

Required profile

• Strong hands‑on experience with JavaScript, TypeScript and modern front‑end frameworks (React and/or Angular).
• Proven expertise in Java and Spring Boot for building back‑end services and APIs.
• Good understanding of RESTful API design, JSON, authentication, authorisation and API security.
• Experience with secure API design, vulnerability awareness, secrets handling, role‑based access control and OWASP guidelines.
• Familiarity with relational and/or NoSQL databases such as PostgreSQL, MySQL, SQL Server, MongoDB or Oracle.
• Solid knowledge of HTML5, CSS3, responsive design, accessibility and UI engineering best practices.
• Experience writing unit, integration and API tests using appropriate frameworks.
• Proficiency with Git, pull requests, code reviews, CI/CD pipelines and Agile/Scrum delivery.
• Strong debugging, problem‑solving and communication skills.

Required skills

• JavaScript
• TypeScript
• React
• Angular
• Java
• Spring Boot
• REST APIs
• JSON
• Authentication & authorisation
• API security (OWASP)
• PostgreSQL
• MySQL
• SQL Server
• MongoDB
• Oracle
• HTML5
• CSS3
• Responsive design
• Accessibility
• Unit testing
• Integration testing
• API testing
• Git
• CI/CD pipelines
• Agile/Scrum