> Markdown version of [/jobs/ext/731601-mainframe-developer](https://www.wearedevelopers.com/jobs/ext/731601-mainframe-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mainframe Developer - **Company:** Key2Source INC - **Location:** Berkeley Heights, NJ, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Batch Processing, Customer Information Control System (CICS), COBOL (Programming Language), Software Quality, Code Review, Databases, IBM DB2, Software Debugging, Job Control Language (JCL), Job Scheduling, Application Data - **Published:** June 29, 2026 - **Apply:** https://www.dice.com/job-detail/98c158a1-08b5-4ed9-a1a3-e4dd6035a2fe ## About the Role * 5+ years of writing, testing, and debugging COBOL programs using established coding standards and best practices * 5+ years of developing and maintaining JCL scripts to manage batch processing and job scheduling * 5+ years of designing, developing, and maintaining DB2 databases to support application data needs * 5+ years of writing and maintaining CICS transaction programs to provide online access to mainframe applications ## Description * Collaborating with business analysts and project managers to gather requirements and design technical solutions * Creating and executing test plans to ensure application functionality and quality * Participating in code reviews and providing feedback to other developers to ensure code quality and adherence to standards * Troubleshooting and resolving application issues in a timely and efficient manner * Keeping up-to-date with emerging technologies and industry trends to suggest process improvements or new solutions. ## Related Videos - [Are Code Reviews Worth It? Insights from 16 Years of Review Data](https://www.wearedevelopers.com/videos/1135-are-code-reviews-worth-it-insights-from-16-years-of-review-data) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [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) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Build a CI/CD pipeline to automate code reviews and ensure code quality](https://www.wearedevelopers.com/videos/349-build-a-ci-cd-pipeline-to-automate-code-reviews-and-ensure-code-quality) - [Fault Tolerance and Consistency at Scale: Harnessing the Power of Distributed SQL Databases](https://www.wearedevelopers.com/videos/1146-fault-tolerance-and-consistency-at-scale-harnessing-the-power-of-distributed-sql-databases) ## Related Articles - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [The Best Software Developer Blogs to Read](https://www.wearedevelopers.com/magazine/156-the-best-software-developer-blogs-to-read) - [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) - [Data Science & more: The Lopez dilemma](https://www.wearedevelopers.com/magazine/10-data-science-more-the-lopez-dilemma) - [Java Basics](https://www.wearedevelopers.com/magazine/122-java-basics) - [Can coding be the next blue collar career?](https://www.wearedevelopers.com/magazine/44-can-coding-be-the-next-blue-collar-career)