Senior Mainframe Developer (COBOL, CICS & DB2)

Compensation & Location

Location: Torrance, CA

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

‼️ ONLY W2 – NO CORP to CORP – NO 3rd Parties

Position Summary

We 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

What You'll Be Working On

• Automotive Parts Management Systems

• Enterprise Supply Chain and Warehousing applications

• Mainframe application development and modernization

• Production support and system enhancements

• Large-scale enterprise application projects

• Business requirements analysis and solution design

• Mainframe architecture and application integration

• Mission-critical automotive business systems

Required Skills & Experience

• Bachelor's degree in Computer Science, Information Systems, or related field (or equivalent experience)

• Strong experience developing enterprise mainframe applications

• 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

• Experience designing scalable enterprise application architectures

• 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

Desired Skills

• 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