Location: Sydney, Australia Engagement: Contract (6 Months + Extendible) - Hybrid

About the Role

We are seeking an experienced API Developer with strong hands-on expertise in Java and Spring Boot to design, develop, test, and maintain reliable and scalable RESTful APIs.

The successful candidate will work in a modern microservices setting, collaborating with business stakeholders, technical teams, and Principal Engineers to deliver secure, resilient, and high-quality API and integration solutions.

The ideal candidate will have strong knowledge of REST API design, microservices, API security, relational databases, automated testing, Git, and API documentation , along with an understanding of how AI-assisted development tools can be used responsibly to improve engineering productivity and quality.

Primary Technology Stack

- Java
- Spring Boot
- REST APIs
- Microservices
- Git

Key Responsibilities

- Design, develop, test, and maintain RESTful APIs using Java and Spring Boot.
- Build scalable, secure, resilient microservices and integration solutions .
- Apply REST API design principles and industry best practices.
- Collaborate with business and technical stakeholders to understand requirements and translate them into effective API designs.
- Produce and maintain API documentation, including OpenAPI/Swagger specifications .
- Ensure APIs meet enterprise standards for security, performance, reliability, and quality .
- Implement appropriate API security mechanisms and authentication/authorization patterns.
- Participate in code reviews and contribute to engineering standards and best practices.




- Troubleshoot and resolve production issues, identifying and implementing effective root-cause fixes.
- Assess the impact of proposed API changes and plan implementation activities.
- Plan and coordinate API changes, releases, and versioning strategies.
- Communicate technical designs, decisions, risks, dependencies, delivery plans, and progress effectively.
- Work closely with cross-functional teams and present technical solutions to Principal Engineers and senior stakeholders.
- Contribute to continuous improvement across development, testing, deployment, and API management processes.
- Use AI-assisted development tools responsibly to improve productivity, code quality, documentation, and delivery outcomes.

Required Skills & Experience

- Strong hands-on experience developing applications using Java and Spring Boot .
- Solid understanding of REST API design principles and best practices .
- Experience working with microservices architecture and API integration patterns.
- Knowledge of API security concepts, including JWT, TLS, authentication, and authorization .
- Experience working with relational databases and SQL .
- Familiarity with Git or other source control systems.
- Understanding of automated testing practices and test-driven development principles.




- Experience designing and maintaining API documentation using OpenAPI/Swagger .
- Ability to assess the impact of API changes and plan implementation and release activities.
- Strong communication skills, with the ability to explain technical decisions, risks, dependencies, and timelines.
- Comfortable collaborating with cross-functional teams and presenting solutions to senior technical stakeholders and Principal Engineers.
- Basic understanding and practical exposure to AI-assisted development tools , such as GitHub Copilot, Microsoft Copilot, ChatGPT, or similar.
- Ability to use AI tools responsibly while maintaining appropriate standards for security, code quality, data privacy, and engineering governance.

Preferred Skills

- Experience working in enterprise-scale environments.
- Experience with API gateways, API management platforms, or integration platforms.
- Knowledge of CI/CD and automated deployment practices.
- Experience with cloud-based application development.
- Experience with observability, logging, and production support for APIs and microservices.

Pay:

$700.00 – $750.00 per day

Application Question(s)

- Please describe your experience with REST API design, microservices architecture, API security (JWT/TLS), and API documentation using OpenAPI/Swagger.
- Which AI-assisted development tools have you used (e.g., GitHub Copilot, Microsoft Copilot, ChatGPT), and how have you used them to improve your development productivity or code quality?

Work Location: In person

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📌 API Developer – Java / Spring Boot / REST APIs (City of Sydney)
🏢 United States Digital Space
📍 City of Sydney