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# Senior Mainframe Developer / Technical Lead (COBOL) - Onsite

- **Company:** NTT DATA, Inc.
- **Location:** Nashville, TN, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Customer Information Control System (CICS), COBOL (Programming Language), Code Review, IBM DB2, Software Debugging, Distributed Systems, Fault Tolerance, Job Control Language (JCL), Mainframes, Routing, Systems Integration, Virtual Storage Access Methods, Cloud Platform System, File-aid
- **Published:** August 9, 2026
- **Apply:** https://us.experteer.com/career/view-jobs/senior-mainframe-developer-technical-lead-cobol-onsite-nashville-tn-usa-58866555

## About the Role

design, to deliver innovative solutions * Participate in architecture reviews, code reviews, testing, and production support * Identify risks and drive continuous improvement initiatives Tasks * 8+ years in enterprise COBOL, DB2, VSAM, JCL * 5+ years with CICS including Dynamic Transaction Routing * Experience with DB2 utilities, File-AID, scheduling and debugging tools * Strong understanding of distributed applications and systems integration * Experience supporting fault-tolerant, mission-critical systems * Proven ability to troubleshoot production issues and optimize performance * Experience leading technical initiatives and mentoring teams * Excellent communication and collaboration with stakeholders Key requirements * medical, dental, and vision insurance with employer contribution * flexible spending or health savings account * life and AD&D insurance * short- and long-term disability coverage * paid time off * 401k with company match

## Description

Experteer Overview In this role you will provide hands-on development and technical leadership for enterprise mainframe applications handling high-volume transactions. You will mentor teams, shape platform modernization, and collaborate with stakeholders to deliver reliable, scalable solutions. You'll drive engineering standards, performance improvements, and production support across the mainframe stack. This is a hands-on leadership role with a focus on delivering mission-critical systems at scale. Compensation / Benefits * Lead design, development, and support of enterprise mainframe apps * Mentor developers and promote engineering best practices * Design scalable architecture for data-intensive, high-volume systems * Set development standards and technical direction * Assess and optimize existing applications for performance and reliability * Collaborate with Infrastructure and Operations to plan upgrades and resolve production issues * Partner with business and technical stakeholders to deliver innovative solutions * Participate in architecture reviews, code reviews, testing, and production support * Identify risks and drive continuous improvement initiatives Tasks * 8+ years in enterprise COBOL, DB2, VSAM, JCL * 5+ years with CICS including Dynamic Transaction Routing * Experience with DB2 utilities, File-AID, scheduling and debugging tools * Strong understanding of distributed applications and systems integration * Experience supporting fault-tolerant, mission-critical systems * Proven ability to troubleshoot production issues and optimize performance * Experience leading technical initiatives and mentoring teams * Excellent communication and collaboration with stakeholders Key requirements * medical, dental, and vision insurance with employer contribution * flexible spending or health savings account * life and AD&D insurance * short- and long-term disability coverage * paid time off * 401k with company match


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