Mainframe Software Developer

Mainframe Software Developer

• Location: Canberra, Melbourne, Brisbane
• Employment Type: Full-time/Permanent
• Experience Level: Mid to Senior (2 to 10+ years)
• Work on large-scale, mission-critical systems with modernisation initiatives
• Security Requirement: Due to the secure nature of this role, we are seeking candidates who are Australian Citizens or individuals with active security clearance, or those who are eligible to obtain clearance.

About the Role

We are seeking experienced Mainframe Software Developers to join a collaborative team focused on innovation, quality, and continuous improvement. This role is suited for professionals passionate about mainframe technologies and eager to contribute to high-impact systems across government and enterprise environments.

Key Responsibilities

• Design, develop, test, and maintain COBOL-based applications in a z/OS mainframe environment
• Write and optimise complex SQL queries for DB2 for z/OS
• Integrate COBOL applications with DB2 databases and IBM MQ messaging systems
• Manage user access and system security using RACF
• Participate in code reviews, debugging, and performance tuning
• Collaborate with testers, analysts, and DevOps engineers
• Contribute to system documentation and knowledge sharing
• Support continuous improvement and modernisation efforts using Micro Focus tools

Required Experience

• COBOL (e.g., IBM COBOL for z/OS)
• DB2 for z/OS and SQL query optimisation
• DB2 utilities (LOAD, UNLOAD, REORG)
• COBOL-DB2 integration
• RACF for user profile management and access control
• IBM MQ for message queue integration
• z/OS environment tools: JCL, TSO/ISPF, VSAM file handling

Preferred Experience/Qualifications

• Micro Focus Enterprise Developer / Analyzer
• Experience in mainframe application modernisation
• Familiarity with Agile and DevOps practices
• Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent experience)
• Certifications in mainframe technologies are advantageous

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