Job Description
Location: Sydney, Australia Engagement: Contract (6 Months + Extendible) - Hybrid
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About the Role
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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.
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The successful candidate will work in a modern microservices environment, collaborating with business stakeholders, technical teams, and Principal Engineers to deliver secure, resilient, and high-quality API and integration solutions.
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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.
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Primary Technology Stack
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Java
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Spring Boot
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REST APIs
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Microservices
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Git
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Key Responsibilities
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Design, develop, test, and maintain RESTful APIs using Java and Spring Boot.
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Build scalable, secure, resilient microservices and integration solutions.
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Apply REST API design principles and industry best practices.
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Collaborate with business and technical stakeholders to understand requirements and translate them into effective API designs.
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Produce and maintain API documentation, including OpenAPI/Swagger specifications.
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Ensure APIs meet enterprise standards for security, performance, reliability, and quality.
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Implement appropriate API security mechanisms and
authentication/authorization
patterns.
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Participate in code reviews and contribute to engineering standards and best practices.
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Troubleshoot and resolve production issues, identifying and implementing effective root-cause fixes.
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Assess the impact of proposed API changes and plan implementation activities.
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Plan and coordinate API changes, releases, and versioning strategies.
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Communicate technical designs, decisions, risks, dependencies, delivery plans, and progress effectively.
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Work closely with cross-functional teams and present technical solutions to Principal Engineers and senior stakeholders.
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Contribute to continuous improvement across development, testing, deployment, and API management processes.
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Use AI-assisted development tools responsibly to improve productivity, code quality, documentation, and delivery outcomes.
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Required Skills & Experience
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Solid hands-on experience developing applications using Java and Spring Boot.
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Solid understanding of REST API design principles and best practices.
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Experience working with microservices architecture and API integration patterns.
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Knowledge of API security concepts, including JWT, TLS, authentication, and authorization.
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Experience working with relational databases and SQL.
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Familiarity with Git or other source control systems.
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Understanding of automated testing practices and test-driven development principles.




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Experience designing and maintaining API documentation using OpenAPI/Swagger.
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Ability to assess the impact of API changes and plan implementation and release activities.
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Strong communication skills, with the ability to explain technical decisions, risks, dependencies, and timelines.
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Comfortable collaborating with cross-functional teams and presenting solutions to senior technical stakeholders and Principal Engineers.
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Basic understanding and practical exposure to AI-assisted development tools, such as GitHub Copilot, Microsoft Copilot, ChatGPT, or similar.
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Ability to use AI tools responsibly while maintaining appropriate standards for security, code quality, data privacy, and engineering governance.
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Preferred Skills
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Experience working in enterprise-scale environments.
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Experience with API gateways, API management platforms, or integration platforms.
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Knowledge of CI/CD and automated deployment practices.
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Experience with cloud-based application development.
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Experience with observability, logging, and production support for APIs and microservices.
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Pay:
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$****** – $****** per day
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Application Question(s)
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Please describe your experience with REST API design, microservices architecture, API security (JWT/TLS), and API documentation using OpenAPI/Swagger.
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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?
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Work Location: In person
#J-*****-Ljbffr

📌 Api Developer - Java / Spring Boot / Rest Apis (New South Wales)
🏢 United States Digital Space
📍 New South Wales