[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All MetLife jobs](https://jobs.opennash.com/companies/metlife/) · [Search jobs](/search/) MetLife # Lead Core Systems Software Engineer Manager or lead Software Engineering Listed on MetLife’s official careers site. Posted October 16, 2026. Check that it is still open and apply there. [Apply on MetLife’s careers site →](https://www.metlifecareers.com/en_US/ml/JobDetail/Lead-Core-Systems-Software-Engineer/21209) [OpenNash Jobs](https://jobs.opennash.com/) / [MetLife](https://jobs.opennash.com/companies/metlife/) / Lead Core Systems Software Engineer ## Job description Description and Requirements Lead Core Systems Software Engineer ### Role Overview MetLife is seeking a Lead Core Systems Software Engineer responsible for developing and maintaining insurance business systems built on mainframe platforms. This position plays a critical role in ensuring stable operations of existing systems while driving new product development and modernization of development environments and processes. You will be engaged in design, development, and operations based on business requirements and interacting closely with delivery teams across Japan, Malaysia and India. This is an opportunity to be involved in the modernization of critical platforms that will positively impact the lives of millions. ### Key Responsibilities Leverage AI-assisted development tools to improve code quality, automate testing, accelerate documentation, and support troubleshooting activities - Identify and apply AI-driven opportunities to enhance modernization initiatives, knowledge discovery, system analysis, and operational efficiency - Design, develop, test, and maintain mainframe applications - Analyse and design to translate business requirements into system specifications - Improve performance of batch and online processing, handle incidents, and perform root cause analysis - Manage application changes, create release plans, and prepare operational manuals - Conduct technical evaluations and implementations for modernization initiatives (e.g., development support tools, test automation, CI/CD) - Ensure design and operations comply with security and regulatory requirements - Lead, mentor, and support team members while fostering collaboration, knowledge sharing, and continuous improvement. - Provide technical direction, review designs and code, and ensure adherence to architecture, security, and quality standards - Coordinate priorities, manage delivery risks and dependencies, and communicate progress, issues, and decisions to stakeholders Candidate Qualifications Education: Bachelor’s degree or equivalent Experience: 10+ years of software development experience with preference given to candidates with prior exposure to mainframe environment (COBOL, JCL, DB2, etc.) 2+ years of experience leading teams preferred. Experience in integrating mainframe solutions with modern open standards platforms Experience in system development within companies operating in the regulated financial industry space desirable. ### Skills Strong problem-solving, analytical, and collaboration skills Expertise in mainframe technologies (COBOL, JCL, VSAM, DB2) desirable Design and tuning of batch and online processing Assembler skills preferred Understanding and practical experience in Agile development preferred - Practical experience using AI-assisted development tools to improve coding, testing, documentation, and troubleshooting productivity - Ability to evaluate and apply AI solutions for test automation, code analysis, knowledge discovery, and modernization support. ### Tech Stack Java, JavaScript, COBOL, JCL, DB2 Development management tools: Mainframe, Azure Boards, Azure DevOps GitHub Enterprise, GitHub Copilot, GitHub Advanced Security Language: English proficiency required Business-level Japanese optional ## At a glance - Posted by the employer: Oct 16, 2026 - First seen by OpenNash: Oct 18, 2026 - Last checked: Oct 18, 2026 - Listed for: 2 days[Apply on MetLife’s careers site →](https://www.metlifecareers.com/en_US/ml/JobDetail/Lead-Core-Systems-Software-Engineer/21209) ## More jobs at MetLife ### [Associate Software Engineer II](https://jobs.opennash.com/companies/metlife/jobs/be6450631e70cea49b92/) ### [Core Systems Software Engineer I](https://jobs.opennash.com/companies/metlife/jobs/3d03db19c0952556f576/) ### [EMEA Tech - Principal Software/Platform Engineer](https://jobs.opennash.com/companies/metlife/jobs/ede1403121a7b0078736/) ### [Full Stack Software Engineer (Cloud based Application)](https://jobs.opennash.com/companies/metlife/jobs/ee3722fb01c311339c2c/) ### [Full Stack Sr Software Engineer](https://jobs.opennash.com/companies/metlife/jobs/095140f566cd2498d967/) ## Similar jobs at other companies ### [C++ Software Engineer - Critical Railway Systems](https://jobs.opennash.com/companies/siemens/jobs/214a25468f7a8ddd868e/) Siemens ### [Senior Rust Software Engineer – Embedded Systems](https://jobs.opennash.com/companies/accenture/jobs/1d18888addfce15737cb/) Accenture ### [Senior Software Engineer - GoLang Microservices & Event-Driven Systems](https://jobs.opennash.com/companies/siemens/jobs/e14aa7cfb06c95379d6b/) Siemens ### [Principal, Software Engineering – InsurTech Finance Core Systems](https://jobs.opennash.com/companies/intact-financial/jobs/dd39c7d28b293d3c0843/) Intact Financial ### [Principal, Software Engineering – InsurTech Claims & Billing Core Systems](https://jobs.opennash.com/companies/intact-financial/jobs/0ecd128875eb73bd474b/) Intact Financial OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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