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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Mainframe Developer - **Company:** Cognizant Technology Solutions Corporation - **Location:** Bentonville, AR, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Agile Methodology, Batch Processing, Customer Information Control System (CICS), COBOL (Programming Language), Code Review, Databases, Data Integrity, IBM DB2, Disaster Recovery, Job Control Language (JCL), Job Scheduling, Mainframes, Performance Tuning, Regression Testing, Software Engineering, SQL Stored Procedures, SQL Databases, Systems Integration, Data Logging, Warehouse Management Systems, System Availability, Information Technology - **Published:** October 4, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3418294864&tx=YT1111TTV&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role Strong hands-on mainframe development experience with COBOL, DB2, JCL, CICS, and SQL. Experience developing, maintaining, and optimizing DB2 databases, stored procedures, queries, and batch-processing solutions. Experience with JCL job streams, job scheduling, error handling, recovery procedures, and production troubleshooting. Strong understanding of the software development life cycle (SDLC), including unit, integration, system, and regression testing. Experience with production support, incident management, root-cause analysis, performance tuning, and application reliability. Ability to translate business and functional requirements into maintainable technical solutions and collaborate effectively with cross-functional teams. Experience contributing to system integration, application modernization, automation, or mainframe platform improvement initiatives. These will help you stand out Experience working with retail or warehouse management systems. Experience supporting large-scale, business-critical transactional and batch-processing environments. Experience mentoring developers, conducting code reviews, and promoting mainframe development best practices. Exposure to Agile delivery methodologies and collaboration across business and technology teams. Experience supporting mainframe modernization and improving integration, automation, scalability, or maintainability. Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field, or equivalent professional experience. ## Description As a Senior Mainframe Developer, you will make an impact by designing, developing, enhancing, and supporting business-critical mainframe applications using COBOL, DB2, JCL, CICS, and SQL. You will collaborate with business analysts, architects, technical leads, project managers, and other stakeholders to deliver reliable, scalable solutions supporting enterprise operations, including retail and warehouse management environments. In this role, you will: Design, develop, enhance, and maintain complex mainframe applications using COBOL, DB2, JCL, CICS, and SQL, supporting reliable transactional and batch processing. Develop and optimize DB2 databases, schemas, stored procedures, queries, and JCL job streams to improve performance, data integrity, system availability, and operational stability. Analyze application code, batch processes, and system workflows to identify opportunities for performance tuning, resource optimization, automation, and improved maintainability. Troubleshoot production issues, perform root-cause analysis, and strengthen exception handling, logging, monitoring, error recovery, and diagnostic capabilities to minimize recurring incidents. Collaborate with business and technology stakeholders to translate requirements into scalable technical solutions, while contributing to testing, technical documentation, code reviews, system integration, and mainframe modernization initiatives. Work model We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role's business requirements, this is a hybrid position in Bentonville, Arkansas. Regardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs. The working arrangements for this role are accurate as of the date of posting. This may change based on the project you're engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations. ## Related Videos - [Unlocking the Power of the Mainframe: Developing modern applications on z/OS](https://www.wearedevelopers.com/videos/764-unlocking-the-power-of-the-mainframe-developing-modern-applications-on-z-os) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [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) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [Cloud as the new mainframe: why the cloud hype does not reflect the dev reality](https://www.wearedevelopers.com/videos/797-cloud-as-the-new-mainframe-why-the-cloud-hype-does-not-reflect-the-dev-reality) ## Related Articles - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [The 10 C++ programming questions to expect in an interview](https://www.wearedevelopers.com/magazine/50-the-10-c-programming-questions-to-expect-in-an-interview) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [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) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers)