> Markdown version of [/jobs/ext/1958984-senior-mainframe-cobol-developer](https://www.wearedevelopers.com/jobs/ext/1958984-senior-mainframe-cobol-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).

---

# Senior Mainframe Cobol Developer

- **Company:** Insight Global
- **Location:** Berkeley Heights, NJ, United States
- **Experience:** Expert
- **Salary:** $112,320.0 - $141,440.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Artificial Intelligence, Amazon Web Services, Amazon Elastic Compute Cloud, Application Lifecycle Management, Microsoft Azure, Batch Processing, COBOL (Programming Language), Code Review, System Configuration, Continuous Integration, Endevor, Job Control Language (JCL), IBM Mainframe, Job Scheduling, PostgreSQL, Mainframes, Broadcom, Software Deployment, Software Engineering, System Testing, Virtual Storage Access Methods, Software Version Control
- **Published:** August 6, 2026
- **Apply:** https://jobs.insightglobal.com/jobs/find_a_job/new-jersey/berkeley-heights/senior-mainframe-cobol-developer/job-560631/

## About the Role

* 7+ years of current experience in mainframe development and production support
 * 7+ years of experience in an IBM Mainframe environment - proficient with COBOL, JCL, VSAM, and working with IBM Mainframe ZOS toolsets.
 * AWS (ECS,Lambda,EC2 etc) / GCP /Azure

## Description

Insight Global is seeking a highly skilled and experienced Senior Mainframe Cobol Developer to join Fiserv's Office Core Processing team. You will bring to life the systems that power our credit card processing applications. Your will interact with cross-functional teams, including Application Development teams, Product Managers, Project Managers, Global Infrastructure Operations (GIO) resources, and Client/Partner IT resources. You will leverage your experience in mainframe development and support, particularly with COBOL, VSAM, JCL, and Batch processes. This role involves development, testing, and on-call production support. Design, develop, and maintain mainframe applications using COBOL, VSAM, JCL and IBM Mainframe ZOS toolsets. Provide support for development and testing environments to ensure smooth application deployment. Provide on-call production support (rotational) for mainframe applications, troubleshooting issues and providing timely resolutions. Utilize Broadcom tools (CA7,
Endevor, etc.) for job scheduling, version control, and application management. Collaborate with business analysts and stakeholders to gather requirements and implement solutions that meet business needs. Conduct code reviews and participate in system testing to ensure high-quality deliverables. Document technical specifications and maintain detailed records of system configurations and changes. Stay updated with industry trends and best practices in mainframe technologies and tools. Modern Stack will include, AI Awanress, AWS, Java, Postgres DB, Aurora DB, CICD.


## Related Videos

- [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)
- [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob)
- [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option)
- [Migrating from COBOL with AI: A Moonshot Demo](https://www.wearedevelopers.com/videos/1531-migrating-from-cobol-with-ai-a-moonshot-demo)
- [ WeAreDevelopers LIVE - the weekly developer show with Chris Heilmann and Daniel Cranney](https://www.wearedevelopers.com/videos/1365-wearedevelopers-live-the-weekly-developer-show-with-chris-heilmann-and-daniel-cranney)
- [Grappling With Clunky Old Software? Start by Understanding What’s Inside!](https://www.wearedevelopers.com/videos/1189-grappling-with-clunky-old-software-start-by-understanding-what-s-inside)

## Related Articles

- [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for)
- [10 Highest Paying Programming Languages 2025](https://www.wearedevelopers.com/magazine/150-10-highest-paying-programming-languages-2025)
- [7 Cloud Computing Trends Coming in 2025 for Developers](https://www.wearedevelopers.com/magazine/412-7-cloud-computing-trends-coming-in-2025-for-developers)
- [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)
- [The Best Software Developer Blogs to Read](https://www.wearedevelopers.com/magazine/156-the-best-software-developer-blogs-to-read)
- [Software Developer Salary in Switzerland [2023]](https://www.wearedevelopers.com/magazine/215-software-developer-salary-in-switzerland-2023)