Location: Australia (Remote or Onsite options available) Clearance: Australian Citizenship required ; Baseline Security Clearance preferred About the Role We are seeking experienced Mainframe Developers and Testers to join a major government technology program focused on modernizing and maintaining critical systems. This is an opportunity to work on large-scale, high-impact projects that underpin essential national service About the Role We are seeking experienced Mainframe Developers and Testers to join a major government technology program focused on modernizing and maintaining critical systems. This is an opportunity to work on large-scale, high-impact projects that underpin essential national services. Requirements Key Responsibilities Develop, maintain, and enhance mainframe applications using COBOL, JCL, DB2, and related technologies. Work on Forms development and integration Perform rigorous testing and quality assurance for mainframe systems. Collaborate with cross-functional teams to ensure system stability and compliance. Troubleshoot and resolve complex technical issues in production environments. Skills & Experience Proven experience in mainframe development and/or testing . Strong knowledge of COBOL, JCL, DB2, VSAM , and related tools. Familiarity with Agile methodologies and modern DevOps practices. Excellent problem-solving and communication skills.