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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Mainframe Developer / Technical Lead (COBOL) - Onsite - **Company:** NTT DATA Corporation - **Location:** Nashville, TN, United States (Remote available) - **Experience:** Expert - **Salary:** $92,408.0 - $213,906.0 - **Contract:** Permanent contract - **Skills:** Application Performance Management, Unit Testing, Customer Information Control System (CICS), COBOL (Programming Language), Software Quality, Code Review, IBM DB2, Software Debugging, Distributed Systems, Fault Tolerance, Job Control Language (JCL), Mainframes, Routing, Performance Tuning, Systems Integration, Virtual Storage Access Methods, Transaction Processing (Computing), Enterprise Software Applications, Cloud Platform System, File-aid - **Published:** August 7, 2026 - **Apply:** https://careers-inc.nttdata.com/talentcommunity/apply/1416818200/?locale=en_US ## About the Role * 8+ years of experience developing enterprise applications using COBOL, DB2, VSAM, and JCL. * 5+ years of experience with CICS, including knowledge of Dynamic Transaction Routing. * Experience with DB2 utilities, File-AID, scheduling tools, and debugging tools. * Strong understanding of distributed applications and systems integration. * Experience supporting high-volume, fault-tolerant, mission-critical systems. * Proven ability to troubleshoot complex production issues and optimize application performance. * Strong analytical and problem-solving skills with the ability to identify risks and implement effective solutions. * Experience leading technical initiatives and mentoring development teams. * Excellent communication and collaboration skills with technical and business stakeholders. * Ability to manage multiple priorities and deliver results in a fast-paced environment. Preferred Qualifications * Experience within Brokerage, Capital Markets, Banking, or Financial Services. * Experience with platform modernization and performance optimization initiatives. * Experience working with geographically distributed Agile teams. What You'll Bring * Strong technical leadership with a hands-on development approach. * Expertise in designing and supporting scalable enterprise mainframe applications. * A passion for mentoring engineers and driving technical excellence. * A continuous improvement mindset with a focus on quality, reliability, and operational excellence. Pay Transparency ## Description We are currently seeking a Senior Mainframe Developer / Technical Lead (COBOL) - Onsite to join our team in Nashville, Tennessee (US-TN), United States (US)., We are looking for a Senior Mainframe Developer / Technical Lead to provide technical leadership for enterprise mainframe applications supporting high-volume, mission-critical transaction processing. This role combines hands-on development, solution architecture, mentoring, and platform modernization to deliver reliable, scalable solutions that support key business initiatives., * Lead the design, development, and support of enterprise mainframe applications. * Provide technical leadership and mentor developers while promoting engineering best practices. * Design and maintain scalable architecture for high-volume, data-intensive systems. * Establish and enforce development standards, code quality, and technical direction. * Evaluate existing applications and recommend enhancements to improve performance, scalability, and reliability. * Partner with Infrastructure and Operations teams to plan upgrades, optimize system performance, and resolve production issues. * Collaborate with business and technical stakeholders to deliver innovative solutions and improve customer experience. * Participate in architecture reviews, code reviews, unit testing, production support, and troubleshooting. * Identify technical risks, recommend solutions, and drive continuous improvement initiatives. ## Related Videos - [Data Fabric in Action - How to enhance a Stock Trading App with ML and Data Virtualization](https://www.wearedevelopers.com/videos/253-data-fabric-in-action-how-to-enhance-a-stock-trading-app-with-ml-and-data-virtualization) - [Creating a routing app with Google Maps API from scratch](https://www.wearedevelopers.com/videos/831-creating-a-routing-app-with-google-maps-api-from-scratch) - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [A Technical Introduction to Bitcoin's 2nd Layer- The Lightning Network](https://www.wearedevelopers.com/videos/15-a-technical-introduction-to-bitcoin-s-2nd-layer-the-lightning-network) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) ## Related Articles - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Should senior developers refuse interview coding challenges?](https://www.wearedevelopers.com/magazine/29-should-senior-developers-refuse-interview-coding-challenges) - [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Software Developer Salary in Switzerland [2023]](https://www.wearedevelopers.com/magazine/215-software-developer-salary-in-switzerland-2023)