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Job Title


Mainframe Developer


Company : Insighture Pty


Location : Sydney, Australia


Created : 2026-04-23


Job Type : Full Time


Job Description

Engineering/Development Sydney, Australia Insighture is a leading technology consultancy that drives digital transformation for businesses worldwide. With a team of over 85 expert consultants, the company delivers tailored, high-impact strategies and solutions, enabling scalable product engineering. As an AWS partner, Insighture excels in co-integrated cloud services. It has collaborated with more than 50 clients globally, guiding them through cloud adoption, DevOps transformation, enterprise modernisation, and more. The teams expertise spans CloudNative Development, Solutions Architecture, UI/UX, Quality Engineering, Data Engineering, AI/ML, and DevSecOps. These capabilities empower businesses to achieve impactful and innovative outcomes. In 2024, Insighture achieved ISO certification and was recognised as a Great Place to Work, earning three prestigious awards: Best Workplace in Sri Lanka, Best Workplace for Technology, and Best Workplace for Young People. Insighture''s technology and expertise are embedded in the work of internationally recognised care providers, global freight operations, child protection systems, and health tech platforms across Australia, the UK, and Singapore. We are seeking experienced Mainframe Developers with strong COBOL expertise to support and enhance missioncritical applications within a highavailability enterprise environment. The ideal candidate will have solid experience working across COBOL, DB2, JCL, CICS, and TSO, with exposure to web services and API integration in mainframe systems. The role requires strong problemsolving skills, the ability to work in Agile delivery environments, and experience supporting largescale production systems. Candidates with Insurance domain experience will be highly preferred. Required Experience 8+ years of solid application development experience in Mainframe environments. Experience developing and supporting high availability production systems. Prior experience working in clientfacing roles. Experience working in Agile development environments. Mandatory Skills Strong experience in Mainframe application development. Handson expertise with: COBOL, DB2, JCL, CICS, TSO. Experience developing Web Services and APIs using COBOL. Experience debugging and troubleshooting mainframe applications. Strong knowledge of batch and online transaction processing. Preferred Skills Experience in Insurance domain applications. Knowledge of enterprise system integrations in mainframe environments. Experience working in large enterprise or regulated environments. Preferred domains: Insurance systems and policy administration platforms, Claims processing systems, Insurance data processing workflows. Key Responsibilities Design, develop, test, and maintain applications within Mainframe environments using COBOL. Develop and support batch and online processing using JCL and CICS. Build and maintain DB2 database interactions, including SQL query optimization and data handling. Develop Web Services and APIs using COBOL to support enterprise integrations. Support and maintain high availability production systems ensuring system stability and performance. Troubleshoot and debug issues across COBOL, JCL, DB2, and CICS components. Perform root cause analysis for production incidents and implement longterm fixes. Enhance existing applications and implement new functionality based on business requirements. Support integration with other enterprise platforms through web services and API interfaces. Participate in system upgrades, migrations, and performance improvements. Work within Agile development teams following sprintbased delivery models. Collaborate with business analysts, architects, testers, and stakeholders to deliver highquality solutions. Participate in sprint planning, code reviews, and retrospectives. Life at Insighture We are looking for the right people who are ready to take on interesting challenges and help grow our clients businesses. #J-18808-Ljbffr