Sr. Mainframe Developer

This role is being added to free up existing FTE capacity and accelerate delivery for the Giga z/OS Connect platform and service build, ensuring stability, scalability, and modernization of core mainframe services., * Design, develop, and support MACSS-based and mainframe applications in a complex enterprise environment

• Support project work, production operations, and platform enhancements, reducing reliance on a single SME
• Contribute to the build and expansion of IBM z/OS Connect services, enabling API and microservices integration with distributed platforms
• Partner with platform, infrastructure, and application teams to modernize and expose mainframe services
• Troubleshoot and resolve complex production issues across batch and online processing
• Participate in platform reliability, performance tuning, and operational readiness
• Document systems, processes, and service integrations to reduce operational risk
• Provide mentoring or informal leadership to junior engineers as needed

Do you have experience in Systems & applications support?, We are seeking a Senior Mainframe Developer with strong experience in MACSS and IBM z/OS environments to support a mission-critical platform that is currently single-threaded across project delivery, operations, and platform modernization work., * 7+ years of mainframe development experience

• Strong hands-on experience with MACSS (or closely related mainframe transaction/data systems)
• Expertise in COBOL, JCL, CICS, DB2, VSAM
• Experience supporting both application development and production operations
• Familiarity with IBM z/OS Connect (services, APIs, REST enablement)
• Experience working in high-availability, regulated, or mission-critical environments
• Strong problem-solving skills and ability to work independently in a single-threaded or high-ownership model

Preferred / Nice-to-Have Skills

• Direct experience building or scaling z/OS Connect EE services
• Exposure to mainframe modernization initiatives (API enablement, service wrappers, DevOps for zOS)
• Experience integrating mainframe services with distributed or cloud platforms
• Knowledge of Git, CI/CD pipelines, or DevOps practices for zOS
• Experience in financial services, insurance, or large enterprise platforms

3.73.7 out of 5 stars Nashville, TN 37201 Hybrid work $59.79 - $93.43 an hour - Contract, Pulled from the full job description

• Health insurance
• Retirement plan
• Vision insurance
• Dental insurance, The pay range that the employer in good faith reasonably expects to pay for this position is $59.79hour - $93.43/hour. Our benefits include medical, dental, vision and retirement benefits. Applications will be accepted on an ongoing basis.