> Markdown version of [/jobs/ext/2573825-senior-mainframe-developer](https://www.wearedevelopers.com/jobs/ext/2573825-senior-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). --- # Senior Mainframe Developer - **Company:** MetLife - **Location:** Clarks Summit, PA, United States - **Experience:** Expert - **Salary:** $105,000.0 - $140,000.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Artificial Intelligence, Automation of Tests, Bioinformatics, Customer Information Control System (CICS), COBOL (Programming Language), Software Quality, Code Review, Continuous Integration, IBM DB2, DevOps, Github, Job Control Language (JCL), Mainframes, Software Engineering, Microsoft Power Automate, GitHub Copilot, Technical Debt, Mainframe Programming, Information Technology, Programming Languages - **Published:** August 1, 2026 - **Apply:** https://www.careerjet.com/job/uscf827f641782758392ccd197407bdf08/eaa ## About the Role * Bachelor's degree in Computer Science, Information Technology, Engineering, or equivalent professional experience. * Strong mainframe application development experience including COBOL, JCL, CICS, DB2, or similar programming languages. * Ability to work effectively across technical and business teams while managing competing priorities in a fast-paced environment. * Robust analytical and problem-solving skills with experience diagnosing complex production issues and remediating currency and security vulnerabilities. * Experience participating in application modernization, legacy transformation, and application decommissioning initiatives. * Effective program management, communication, collaboration, and stakeholder management skills., * 5+ years of experience in designing, developing, testing, deploying, and supporting mainframe applications. * Experience with AI-assisted software engineering tools, such as GitHub Copilot, Microsoft Copilot, or similar technologies. * Experience with CI/CD pipelines, Agile development methodologies, and DevOps practices. * Demonstrated ability to mentor junior mainframe engineers, influence technical direction, and drive engineering best practices across teams. * 3+ years of experience supporting Retail Life and Annuity products. Location Expectation: This is a hybrid role requiring a minimum of 3 days per week in office. ## Description When you join MetLife's Global Technology team, you'll be part of a forward-thinking group dedicated to shaping the future of digital solutions for customers worldwide. You'll develop, maintain and support technology applications and delivery, leveraging AI, automation, and contemporary ways of working to enhance experiences and drive business outcomes. Your work will simplify complex processes, improve tech resiliency, and ensure high-performing, seamless solutions that power life's most important moments. In this dynamic environment, you'll collaborate with talented peers across teams and functions, expanding your skills in impactful ways. Ready to push boundaries and set new industry standards? Join us and help drive the future of technology forward. The Opportunity The Senior Full Stack Software Engineer is responsible for modernizing, reimagining, supporting, and retiring mainframe applications across the MetLife Holdings Classic Agile Release Train. The ideal candidate will possess deep mainframe development and engineering capabilities with technologies including COBOL, JCL, CICS, DB2, or similar programming languages. This role plays a key part in maintaining the stability of applications, while advancing MetLife's modernization strategy through the transformation of legacy mainframe platforms, adoption of AI-enabled engineering practices, and retirement of aging technologies. Guided by our purpose - always with you, building a more confident future - and our strategy focused on stronger growth, attractive returns and all-weather performance, this is an exciting opportunity to help shape the future of MetLife Holdings technology and support the Annuity & Life Insurance Next Evolution migration., * Lead the application modernization and decommissioning initiatives, including application rationalization, dependency analysis, migration activities, and retirement of legacy platforms while ensuring compliance with business, regulatory, and operational requirements. * Create and maintain mainframe applications' batch processes to support business functions, improve operational efficiency, and enable the reliable delivery of business capabilities. * Oversee application quality, code reviews, automated testing, production support, and continuous improvement initiatives. * Manage technical enhancements, ChangeMan to GitHub modernization efforts, platform currency and security activities, and technical debt reduction across assigned applications. * Develop and maintain applications using mainframe programming languages and GitHub Copilot with human-in-the-loop processes. * Coordinate with product owners, architects, business analysts, operations teams, and external partners to ensure successful delivery of requirements., MetLife is an Equal Opportunity Employer. All employment decisions are made without regards to race, color, national origin, religion, creed, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity or expression, age, disability, marital or domestic/civil partnership status, genetic information, citizenship status (although applicants and employees must be legally authorized to work in the United States), uniformed service member or veteran status, or any other characteristic protected by applicable federal, state, or local law ("protected characteristics"). If you need an accommodation due to a disability, please email us at accommodations@metlife.com. This information will be held in confidence and used only to determine an appropriate accommodation for the application process. MetLife maintains a drug-free workplace. ## 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) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [DevOps Maturity Check – a way to balance autonomy and alignment](https://www.wearedevelopers.com/videos/58-devops-maturity-check-a-way-to-balance-autonomy-and-alignment) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [How Much FAANG Companies Actually Pay Software Engineers in 2025](https://www.wearedevelopers.com/magazine/230-how-much-faang-companies-actually-pay-software-engineers-in-2025) - [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) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Software Developer Salary in Switzerland [2023]](https://www.wearedevelopers.com/magazine/215-software-developer-salary-in-switzerland-2023) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)