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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Mainframe Engineer - **Company:** Vsg Business Solutions - **Location:** Merrimack, NH, United States (Remote available) - **Experience:** Expert - **Salary:** $100,000.0 - $120,000.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Amazon Web Services, Application Integration Architecture, Systems Engineering, JIRA, Customer Information Control System (CICS), Cloud Computing, COBOL (Programming Language), IBM DB2, Cursor (Graphical User Interface Elements), Software Debugging, Distributed Data Store, Distributed Systems, Job Control Language (JCL), Mainframes, Oracle (Applications), Software Maintenance, Verification and Validation (Software), SQL Databases, Systems Integration, Web Applications, Cloud Platform System, Atlassian Tools, Restful APIs - **Published:** July 11, 2026 - **Apply:** https://www.careerjet.com/jobad/use4c0332695fc5aedd2ea355ab48b67c7 ## About the Role * Mainframe Tech Stack: Deep expertise in COBOL, CICS, DB2, and JCL. * Domain Knowledge: Professional experience in the BFSI sector, specifically within Brokerage, corporate actions, Trade Settlement, or loan origination. * Data & SQL: Strong understanding of DB2; knowledge of Oracle, SQL or other distributed databases is highly preferred. * Cloud & Modernization Basics: Foundational knowledge of cloud platforms (AWS) and distributed systems to assist with potential modernization transitions. * Agile Tools: Proficiency in Jira for task tracking and project management. * Distributed Architecture: Understanding of REST APIs and the basic functionality of distributed web applications. ## Description Alternate weeks Onsite/Remote Must take assessment within 24 hours Linkedin (must have picture and full name and clients and dates must match those on resume): Must Have Skills: -COBOL, CICS, DB2, JCL - Oracle and SQL - AWS - REST APIs - Jira - Domain: Brokerage, Corporate Actions, Trade Settlement PRIOR REJCETED CANDIDATE FEEDBACK: -Not able to answer questions pertaining to DB2 Cursors, JCL Overriding -Gave vague answers for Optimization questions Role Summary This role focuses on the ongoing maintenance and support of core mainframe applications. You will be responsible for managing complex legacy logic, researching system behaviors, and ensuring the stability of brokerage platforms. While the primary focus is on mainframe technologies, a foundational understanding of cloud environments is required to support long-term modernization efforts. You are expected to independently review designs, ask critical questions, and challenge technical approaches to ensure optimal system performance. Core Responsibilities * Application Maintenance: Maintain and optimize existing mainframe applications, focusing on COBOL, CICS (online and batch), and JCL environments. * Logic & Event Analysis: Research and review existing mainframe logic to determine how events behave and document findings for technical stakeholders. * Database Management: Manage data and execute complex queries using DB2 and SQL. * Independent Research: Independently analyze system behaviors and conduct thorough design reviews to identify potential improvements or risks. * Collaborative Development: Partner closely with developers to refine technical stories and requirements within an Agile environment. Ability to understand API driven cloud applications and collaborate with modernization teams. * Debugging & Troubleshooting: Perform end-to-end analysis and debugging of production issues, including the ability to look deeply into system logs. * AI Integration: Use Copilot and other AI-assisted tools to facilitate code research, analysis, and maintenance tasks., Job Summary: The Senior Staff Electrical Engineer researches, plans, designs, develops, analyzes, and tests a variety of electronic equipment and systems, including displays, sen… + 1 month ago, Job Summary: The Senior Systems Engineer performs requirements analysis and management, technical planning, systems level design, systems integration, verification and validation… + 1 month ago, This Senior Plastics Engineer position is a hands-on manufacturing engineering role focused on improving existing processes and validating new equipment, tooling, and technologies.… + 1 month ago + Apply easily + ## Related Videos - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [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) - [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) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [".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) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [7 Cloud Computing Trends Coming in 2025 for Developers](https://www.wearedevelopers.com/magazine/412-7-cloud-computing-trends-coming-in-2025-for-developers) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The Best Software Developer Blogs to Read](https://www.wearedevelopers.com/magazine/156-the-best-software-developer-blogs-to-read) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers)