Base pay range A$140,000.00/yr - A$160,000.00/yr This range is provided by Change Recruitment. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Location Location: Sydney - Hybrid (2/3 Days Work From Home) About the Company My client is an innovative, high-growth Defence Tech company operating at the forefront of AI/ML, sensor fusion, and complex data systems. Backed by strong investment and serving customers across the world, they are rapidly scaling both their product capabilities and global presence. With a strong engineering culture and a focus on delivering impactful solutions, my client offers the opportunity to work on projects that make a tangible difference in the real world. The Role They are seeking a Backend Software Engineer to join their agile development team. The ideal candidate will bring a strong understanding of backend best practices and a track record of delivering high-quality, scalable solutions. Key Responsibilities Architect, build, and maintain backend systems that enhance functionality and user experience Implement automated testing to ensure platform stability and reliability Collaborate with engineering peers to design, release, and support new features Take ownership of services and code in production environments Manage and optimise relational databases for performance and scalability Ideal Experience Minimum 3 years experience in backend software development Strong proficiency with Node.js Experience with NestJS Solid understanding of REST APIs, microservices, and backend development best practices Experience working in Unix/Linux environments Competitive salary package with performance-based incentives Access to cutting-edge technology and tools in defence and AI/ML Professional development opportunities, including training and certifications Contribute to projects with national security importance and global reach What you'll get / Benefits Work with cutting-edge technology in defence and AI/ML Professional development opportunities, including training and certifications Collaborative, engineering-driven culture This is a chance to join a talented engineering team tackling complex, high-impact challenges. The work you do will directly contribute to building secure, scalable backend systems that support mission-critical applications. For those who thrive in a high-growth environment and enjoy building from the ground up, this role offers the opportunity to make a genuine impact. Apply now for immediate consideration or contact for more details. Key details Seniority level: Mid-Senior level Employment type: Full-time Job function: Information Technology Industries: Technology, Information and Media #J-18808-Ljbffr