Mainframe Developer
Confirmed on the employer's own hiring board on Oct 31, 2026. First seen by Alion on Aug 19, 2026.
Job Summary We are looking for an experienced Mainframe Developer with strong expertise in designing, developing, testing, and maintaining enterprise applications on IBM Mainframe platforms. The ideal candidate should have hands-on experience with COBOL, JCL, DB2, CICS, VSAM, and other mainframe technologies.
Key
Responsibilities Develop, enhance, and maintain applications on the IBM Mainframe platform. Write and maintain programs using COBOL. Develop and modify JCL for batch processing. Work with DB2 databases, including SQL queries, stored procedures, and performance tuning. Develop and support online applications using CICS. Work with VSAM files and other mainframe datasets. Perform unit testing, integration testing, and production support. Analyze business and technical requirements and provide suitable solutions. Debug and resolve application, batch job, and production issues. Monitor and optimize batch jobs and application performance. Participate in code reviews and ensure adherence to coding standards. Collaborate with business analysts, testers, and other development teams. Support application deployment and release activities. Prepare technical documentation and maintain existing system documentation.
Required Skills Strong hands-on experience with COBOL. Good knowledge of JCL and IBM Mainframe utilities. Experience with DB2 and SQL. Hands-on experience with CICS. Knowledge of VSAM, IMS, and mainframe datasets. Experience in debugging tools such as Xpediter/Abend-AID or similar tools. Knowledge of TSO/ISPF and SDSF. Understanding of batch and online transaction processing. Strong analytical and problem-solving skills. Good communication and teamwork skills. Good to Have Experience with IMS DB/DC. Knowledge of REXX scripting. Experience with IBM MQ. Exposure to Mainframe modernization initiatives. Experience integrating mainframe applications with distributed or cloud-based systems. Knowledge of DevOps and CI/CD practices for mainframe applications. Experience in Banking, Insurance, Healthcare, or other enterprise domains. Key Technologies COBOL | JCL | DB2 | SQL | CICS | VSAM | IMS | TSO/ISPF | SDSF | IBM MQ | Mainframe Utilities
Education Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related field. Preferred Candidate Profile The ideal candidate should have strong hands-on experience in COBOL, JCL, DB2, and CICS, with the ability to independently handle application development, enhancements, production support, and troubleshooting in a complex enterprise mainframe environment.