Senior Software Engineer – Mainframe

Job summary

Senior-level mainframe engineer responsible for delivering secure, resilient, and maintainable enterprise application solutions across delivery, modernization, and production support. This role partners across business, technology, QA, architecture, and operations to deliver quality outcomes aligned to enterprise SDLC, risk, regulatory, and technology standards. Primary Responsibilities 1.

Qualifications

• into quality application changes that support reliable batch, online, interface, and data-processing capabilities.
• Troubleshoot application, transaction, batch, interface, data flow, restart/recovery, and downstream impact issues.
• Prepare technical specifications, implementation and backout plans, support documentation, and delivery estimates with clear ownership of risks, dependencies, quality, and production stability.
• SDLC, Quality & Release Readiness
• Execute SDLC activities across
• analysis, estimation, design, coding, testing, documentation, change control, and release readiness.
• Apply GitLab and DevOps practices for source control, branching, merge requests, peer review, traceability, CI/CD, deployment planning, and implementation validation.
• Prepare and execute unit, integration, regression, batch validation, data reconciliation, UAT support, production verification, and defect resolution activities.
• Improve reliability and delivery quality through peer review, code quality, test coverage, automation, release evidence, and post-production validation.
• Modernization, Integration & Stability
• Support modernization initiatives including API enablement, data integration, technical debt reduction, platform resiliency, and modern IBM z development practices.
• Contribute to integration designs across mainframe, distributed platforms, cloud-connected applications, MQ, APIs, and data movement patterns.

Responsibilities

• Senior-level mainframe engineer responsible for delivering secure, resilient, and maintainable enterprise application solutions across delivery, modernization, and production support.
• Mainframe Software Engineering & Delivery
• Own delivery of secure, resilient, performance-aware mainframe solutions across the full lifecycle from analysis and design through implementation, validation, and production support.
• Translate business and technical
• Works independently on complex technical assignments with guidance from the Technology Team Lead, Engineering Lead, or Architect.
• Coordinates small to medium technical work efforts and provides technical guidance to less experienced engineers as needed.
• Escalates technical risks, delivery issues, design gaps, control concerns, and operational impacts appropriately.
• Education Required
• Associate’s degree and a minimum of 5 years of systems analysis and/or application development experience; or
• In lieu of a degree, a combined minimum of 7 years of higher education and/or work experience, including a minimum of 5 years of systems analysis and/or application development experience.
• Required Experience
• IBM z/OS mainframe application development experience with COBOL, CICS, JCL, DB2 for z/OS, VSAM, TSO/ISPF, SDSF, Easytrieve+, and related

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