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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mainframe Developer/Lead - **Company:** Avanciers LLC - **Location:** United States - **Experience:** Expert - **Contract:** Temporary contract - **Skills:** Java (Programming Language), Agile Methodology, JIRA, Customer Information Control System (CICS), CLIST, COBOL (Programming Language), Code Review, Databases, IBM DB2, DB2 SQL, Software Debugging, Distributed Systems, Job Control Language (JCL), IBM WebSphere MQ, Rexx (Programming Language), IBM Information Management System, Mainframes, SQL Stored Procedures, Systems Integration, Virtual Storage Access Methods, Extensible Markup Language (XML), Z/OS, Tso/ispf, File Transfer Protocol (FTP), Enterprise Software Applications, Mainframe Programming, Production Code, Maintaining Code, Apache Kafka, Restful APIs - **Published:** August 1, 2026 - **Apply:** https://www.dice.com/job-detail/60aee7d3-a2e2-4cf7-9792-dbf4fbef1e6a ## About the Role We are seeking an experienced Senior Mainframe Developer with 10+ years of hands-on experience in IBM z/OS Mainframe technologies. The ideal candidate will be a self-starter who can independently manage deliverables, interact directly with client stakeholders, and drive development initiatives with minimal oversight. This role requires strong technical expertise across Mainframe development, database technologies, and production support within large enterprise environments. Mainframe Skills * Experience (10+ years) in developing, debugging, and maintaining code in a large corporate environment with IBM-Z/OS Mainframe applications * Experience with Mainframe development suite, COBOL, JCL, CICS, MQ, VSAM including both batch and real-time processes. * CICS Main view, REXX, CLIST · Proficient in FTP/NDM/File-Mover, CA-7, IBM Utilities, Intertest, File Aid, TSO/ISPF/SDSF, File Manager, Changeman, SORT * Experience with debug tools like Xpediter * Strong Database design and development skills in IMS DB, DB2, DB2 SQL and Stored Procedures * Experience with IBM WebSphere MQ messaging solution * Exposure to distributed Technologies - Java, Kafka, Rest Web Service, XML, * Experience integrating Mainframe systems with distributed applications. * Experience working in Agile/Scrum environments. * Prior experience in banking, financial services, insurance, or large enterprise organisations. ## Description * Develop, maintain, and support secure, high-quality production code using COBOL, JCL, VSAM, DB2, and CICS. * Analyse, troubleshoot, and resolve complex application issues in production and non-production environments. * Perform code reviews and provide technical guidance to development teams. * Identify opportunities to automate recurring issues and improve application stability and operational efficiency. * Participate in Agile ceremonies, estimate user stories, and document development activities in JIRA. * Ensure adherence to enterprise architecture standards, security policies, risk management controls, and development best practices. * Collaborate with cross-functional teams, architects, business analysts, and client stakeholders. * Drive development activities independently with minimal supervision. * Support large-scale enterprise applications and mission-critical systems. ## Related Videos - [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) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) - [".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) - [Integrate your Cognitive Assistant with 3rd-party DBs and software](https://www.wearedevelopers.com/videos/249-integrate-your-cognitive-assistant-with-3rd-party-dbs-and-software) ## Related Articles - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [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) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [Software Developer Salary in Switzerland [2023]](https://www.wearedevelopers.com/magazine/215-software-developer-salary-in-switzerland-2023) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers)