Senior Mainframe Developer (COBOL, CICS & DB2
Listed on 2026-08-03
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Software Development
Backend Developer, SQL Developer, .NET Developer
Pay Range: $59.00 - $66.00 per hour (based on experience and internal equity)
Schedule:
Full-time, contract; long-term opportunity Work Type:
Hybrid (4 days onsite, 1 day remote)
Benefits: Health, Vision, Dental, Life Insurance, 401k, Continuing and on-demand education
Must be willing to work onsite in Torrance, CA (LA County) Sponsorship is available for this role Position SummaryWe are seeking a Senior Mainframe Developer to support enterprise Parts Applications and Supply Chain systems within a large-scale automotive environment. This role will serve as the Mainframe Systems Subject Matter Expert (SME), leading analysis, design, development, testing, implementation, and production support for mission-critical applications while partnering with project managers, business stakeholders, and development teams.
The ideal candidate brings deep expertise in COBOL-based mainframe development, enterprise architecture, SDLC methodologies, and production support, along with the ability to deliver scalable solutions supporting high-volume automotive parts and logistics operations.
Key Responsibilities- Serve as the Mainframe Systems SME supporting enterprise Parts Applications and Supply Chain initiatives
- Analyze business requirements and translate them into technical solutions and development tasks
- Lead functional analysis, detailed design, development, testing, implementation, and production support activities
- Design, develop, and maintain enterprise mainframe applications using COBOL, CICS, JCL, IMS, VSAM, and DB2
- Define architectural solutions that support scalability, maintainability, and business requirements
- Support projects ranging from large enhancements to enterprise-wide application initiatives
- Perform unit testing, integration testing, system testing, user acceptance testing (UAT), implementation, and post-production warranty support
- Collaborate with Project Managers, Business Analysts, Architects, QA teams, and business stakeholders throughout the SDLC
- Provide regular project status updates, risk identification, and technical recommendations
- Troubleshoot production issues and support ongoing application maintenance
- Ensure adherence to enterprise development standards, architecture guidelines, and change management processes
- Support Agile and Waterfall software development methodologies
- Contribute to solution architecture discussions and enterprise technology planning
- Enterprise Supply Chain and Warehousing applications
- Mainframe application development and modernization
- Production support and system enhancements
- Business requirements analysis and solution design
- Mainframe architecture and application integration
- Mission-critical automotive business systems
- Bachelor’s degree in Computer Science, Information Systems, or related field (or equivalent experience)
- Advanced expertise with COBOL, CICS, JCL, IMS, VSAM, and DB2
- Strong understanding of Software Development Life Cycle (SDLC)
- Experience performing business analysis, functional design, development, testing, implementation, and production support
- Strong analytical, troubleshooting, and problem-solving skills
- Experience supporting mission-critical production systems
- Ability to collaborate effectively across technical and business teams
- Experience working within Agile and Waterfall environments
- Stable work history within large enterprise organizations
- Experience with .NET Core, ASP.NET MVC, C#, or Angular
- Knowledge of Automotive Parts, Supply Chain, Warehousing, or Logistics systems
- Understanding of enterprise architecture, multi-tier applications, and cross-platform environments
- Experience with emerging technology standards and enterprise modernization initiatives
- Strong communication and stakeholder management skills
Experience supporting medium-to-large enterprise software implementations - 3+ years of Big 4 consulting experience preferred
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