seeking an experienced Assembler and COBOL-CICS Developer with a strong background in IBM Mainframe technologies to join our team. In this role, you will collaborate with team members to design, develop, and optimize mainframe applications while ensuring seamless integration within existing infrastructure. You will play a key part in troubleshooting, performance tuning, and adhering to best practices in enterprise software development. Responsibilities - Analyze and understand existing Assembler programs and system interfaces. - Design, develop, test, and deploy enhancements and bug fixes in IBM Assembler (HLASM). - Design, develop, test, and deploy enhancements and bug fixes in COBOL-CICS. - Perform code walkthroughs and support system and integration testing efforts. - Create and maintain technical documentation for application processes and workflows. - Assist in resolving production issues and providing ongoing application support. - Participate in performance tuning and code optimization initiatives. - Contribute to modernization efforts such as re-engineering or re-platforming mainframe workloads. Key Qualifications - Must be available to be onsite 5-days per week in our Columbus, OH office - Strong programming skills in IBM Assembler (HLASM) — mandatory. - Strong programming skills in COBOL-CICS — mandatory. - Hands-on experience with JCL, VSAM, and DB2. - Working knowledge of Changeman or similar change management tools. - Familiarity with Mainframe Utilities such as SORT and IDCAMS. - Ability to interpret functional requirements and translate them into technical solutions. Preferred Qualifications - Exposure to mainframe modernization projects, including re-engineering or re-platforming workloads. - Experience with performance tuning and optimization of mainframe applications.