> Markdown version of [/jobs/ext/277559-senior-mainframe-engineer-cobol-db2-vsam](https://www.wearedevelopers.com/jobs/ext/277559-senior-mainframe-engineer-cobol-db2-vsam). 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 Engineer (COBOL, DB2, VSAM) - **Company:** Fmr LLC - **Location:** Smithfield, RI, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Agile Methodology, Software Applications, Unit Testing, Customer Information Control System (CICS), COBOL (Programming Language), Information Systems, Extract Transform Load (ETL), IBM DB2, Software Debugging, Job Control Language (JCL), IBM WebSphere MQ, Job Scheduling, Python (Programming Language), Mainframes, Performance Tuning, Software Engineering, SQL Databases, System Testing, Virtual Storage Access Methods, Z/OS, Informatica Powercenter, Software Application Programming, File-aid, Information Technology, Software Version Control, Control M - **Published:** May 19, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=80a39e9cd6a8f649 ## About the Role * Bachelor's degree (or foreign education equivalent) in Computer Science, Engineering, Information Technology, Information Systems, Mathematics, Physics, or a closely related field and five or more (5+) years of experience in the job offered or five or more (5+) years of experience as a technical lead in mainframe brokerage or stock plan services systems and application development. * Or, alternatively, Master's degree (or foreign education equivalent) in Computer Science, Engineering, Information Technology, Information Systems, Mathematics, Physics, or a closely related field and three (3) years of experience in the job offered or three (3) years of experience as a technical lead in mainframe brokerage and stock plan services systems and application development. * While not required, knowledge of ETL, Informatica, Java, Python, or other distributed languages is a plus ## Description * Your Demonstrated Expertise ('DE') in defining, developing, and leading an interactive team to implement scalable application solutions * Your DE in mainframe application development, automation, and support, utilizing COBOL, CICS, DB2, JCL, VSAM, MQ-Series, and SQL * Your DE in mainframe performance tuning and capacity planning, including ways to reduce I/Os, CPU Time, MSUs, and MIPs, using Strobe, iStrobe, and Platinum Detector * Your DE in mainframe application development including - file format and comparison using File-AID; version management using Endeavor; debugging and unit testing using Intertest and Abend-AID; and job scheduling using Control-M The Value You Deliver * Senior engineer working within an Agile team, including requirements gathering, development, and end-to-end testing * Defining, developing, and leading interactive team to implement application-level architecture, giving due consideration to application scalability and extensibility, and conformance to established standards * Providing on-site and on-call support as needed and acting as a subject matter expert as part of a cross-functional crisis management team * Developing applications on complex projects, components, and subsystems for the division * Recommending development testing tools and methodologies and reviewing and validating test plans * Resolving technical roadblocks involving multiple technologies and making recommendations and improvements to avoid them in the future * Collaborating with multiple layers of management to share approaches, develop solutions, and improve capabilities throughout the organization * Leading collaborative sessions and ceremonies with stakeholders and providing guidance and feedback to team members * Being responsible for QA readiness of software deliverables * Planning and conducting system testing * Developing comprehensive documentation for multiple applications or subsystems * Establishing full project life cycle plans for complex projects across multiple platforms * Being responsible for meeting project goals on-time and on-budget * Advising on risk assessment and risk management strategies for projects * Planning and coordinating project schedules and assignments for multiple projects * Acting as a primary liaison for business units to resolve various project/technology issues * Providing technology solutions to daily issues and technical evaluation estimates on technology initiatives * Performing independent and complex technical and functional analysis for multiple projects supporting several initiatives * Developing original and creative technical solutions to on-going development efforts How Your Work Impacts the Organization Develops applications and provides support on a mainframe environment, using COBOL, DB2, CICS, JCL, MQ-Series, SQL, and VSAM files. Analyzes and recommends changes in project development policies, procedures, standards, and strategies to development experts and management. ## Related Videos - [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) - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Migrating from COBOL with AI: A Moonshot Demo](https://www.wearedevelopers.com/videos/1531-migrating-from-cobol-with-ai-a-moonshot-demo) ## 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) - [10 Highest Paying Programming Languages 2025](https://www.wearedevelopers.com/magazine/150-10-highest-paying-programming-languages-2025) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Should senior developers refuse interview coding challenges?](https://www.wearedevelopers.com/magazine/29-should-senior-developers-refuse-interview-coding-challenges)