IDMS Mainframe Consultant

The IDMS Mainframe Consultant is responsible for the development, enhancement, and support of mission-critical mainframe applications supporting core business operations. This role provides deep technical expertise in mainframe COBOL applications, online and batch processing, and mainframe database technologies, with a strong focus on stability, performance, and production support.

The consultant works closely with cross-functional teams-including developers, QA analysts, operations, and business stakeholders-to maintain and modernize legacy systems while ensuring high availability and operational integrity. The role requires hands-on involvement in application development, problem determination, production support, and change management activities across multiple environments., * Design, develop, maintain, and support batch and online mainframe applications

• Analyze and resolve production issues, including root-cause analysis and long-term remediation
• Support online transaction processing, dialogs, and screen flows used in daily operations
• Develop and maintain JCL job streams, batch processes, and supporting utilities
• Participate in application deployments, promotions, backout, and recovery procedures
• Perform data analysis, impact assessment, and system troubleshooting across environments
• Collaborate with technical and non-technical stakeholders to deliver reliable solutions
• Document system behavior, processes, and technical solutions to support knowledge transfer

• Strong experience in mainframe application development and support
• Proficiency in COBOL programming for both batch and online processing
• Expertise in mainframe database concepts, including schema design, data navigation, and utilities
• Solid understanding of z/OS environments, job scheduling, and workload processing
• Experience with change management, source control, and multi-environment promotion cycles
• Proven ability to diagnose and resolve complex production issues independently
• Strong analytical, documentation, and communication skills

Preferred technical and professional experience

Nice to Have

• Experience supporting regulated, high-availability, or mission-critical systems
• Exposure to system optimization, performance tuning, or modernization initiatives
• Ability to mentor team members and assist with knowledge transfer efforts

IBM is committed to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, caste, genetics, pregnancy, disability, neurodivergence, age, veteran status, or other characteristics. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

A career in IBM Consulting is built on long-term client relationships and close collaboration worldwide. You'll work with leading companies across industries, helping them shape their hybrid cloud and AI journeys. With support from our strategic partners, robust IBM technology, and Red Hat, you'll have the tools to drive meaningful change and accelerate client impact. At IBM Consulting, curiosity fuels success. You'll be encouraged to challenge the norm, explore new ideas, and create innovative solutions that deliver real results. Our culture of growth and empathy focuses on your long-term career development while valuing your unique skills and experiences.