Backend API Developer

Duration: 12 month contract, with a 12 month extension option

Location: Brisbane, Melbourne, Sydney

Company Overview

BLACKROC is partnering with a large federal government agency to recruit a Backend API Developer. This is a genuine chance to work on digital services used by hundreds of thousands of Australians, inside a team that has made contemporary AI-assisted development part of how they work — not an afterthought.

Role Purpose

You'll design, build and support the backend services and consumer APIs that power a large-scale suite of web applications, portals and mobile apps. Working within a multidisciplinary delivery team, you'll deliver secure, scalable services that sit as a consistent integration layer between customer-facing digital channels and the enterprise platforms behind them. You'll be expected to use AI-assisted development tools as a primary delivery mechanism, while owning the quality, security and maintainability of everything that ships.

Key Responsibilities

- Design, develop, test and maintain secure, scalable backend services and consumer APIs using Golang and GraphQL
- Develop and support cloud-native applications deployed to Kubernetes and AWS EKS
- Collaborate with frontend developers, Salesforce developers, integration teams and solution architects to deliver end-to-end solutions
- Design and implement authentication, authorisation and secure integration patterns across web, portal and mobile channels
- Use contemporary AI-assisted development tools to accelerate implementation, testing, troubleshooting and documentation
- Contribute to platform reliability, observability, security and operational excellence

Required Skills & Experience





- Demonstrated experience building secure, scalable backend services and APIs in Golang, in enterprise or large-scale digital environments
- Strong knowledge of API design and integration patterns, including GraphQL, authentication and authorisation, API lifecycle management and service-to-service communication
- Experience developing and operating cloud-native applications on Kubernetes and AWS, including Amazon EKS
- Solid grounding in source control, automated testing and CI/CD pipelines
- Demonstrated use of contemporary AI-assisted engineering tools, backed by strong underlying engineering fundamentals
- Excellent collaboration and communication skills across technical and non-technical stakeholders
- Australian citizenship and the ability to obtain a Baseline security clearance (mandatory)

Preferred Skills & Qualifications

- Experience with Cloudflare technologies, including Zero Trust, Access, Tunnels and edge security
- Experience designing consumer-facing API platforms serving web, portal or mobile ecosystems
- Exposure to enterprise integration architectures such as Salesforce or MuleSoft
- Experience in government, regulated or highly governed technology environments

Please click the 'Apply' button to submit your resume. For more information please contact Usama at [email protected] or on [0414 330 211](tel:0414 330 211). At BLACKROC Recruitment, we are committed to fostering diversity, equity, and inclusion. We welcome applications from individuals of diverse backgrounds, including those with lived experiences. If you require any adjustments during the recruitment process, please don't hesitate to reach out to the above-mentioned BLACKROC Consultant.

📌 Backend API Developer (Sydney)
🏢 BLACKROC Contingent
📍 Sydney