Salary: $190K - $220K Super Hybrid: 2 days a week in the Sydney office We're exclusively hiring a Staff Software Engineer to join a SaaS scale-up that's conquered the Australian market, and now has global expansion targets for 2025. This role is a critical hire for their next phase of growth, as they transition to version 2.0, raise standards, and strive for engineering excellence. You'll lead greenfield projects on critical backend systems that process billions of transactions annually Role Characteristics: 90% hands-on coding: Primarily with Java, Spring Boot, Node.js, Microservices, AWS, Kubernetes, Docker, and Kafka. Involvement in architectural decisions, bridging design and execution. Focus on observability and building solid foundations. Solve complex, undefined problems with a constructive, problem-solving mindset. Emphasis on discovery and proof of concepts (POC) Collaborate with 25 engineers (40 company-wide) to deliver critical backend systems. What We're Looking For: Staff/Principal-level ICs with a proven track record as backend engineers. Expertise in Java, Spring Boot, Microservices. Deep knowledge of AWS and Kubernetes, focused on secure, scalable architecture. Passion for solving hard problems. Experience with event-driven architecture (Kafka). Background in SaaS, B2B, or payments platforms (bonus). Collaborated in cross-functional teams. How to apply: Follow the clicks and submit your CV to maxsustainrecruit.com