Senior Mainframe Developer (COBOL, CICS & DB2)

Delta Computer Consulting, Inc.; Rapid City (SD); Hybrid; USD 81,000 - 91,000; Full time

Benefits offered by this job

Health insurance

Vision insurance

Dental insurance

Life insurance

401k

Continuing and on-demand education

Job summary

Delta Computer Consulting, Inc. is seeking a Senior Mainframe Developer to support enterprise Parts Applications and Supply Chain systems in a large-scale automotive environment. You will lead analysis, design, development, testing, and production support as the Mainframe SME.

The ideal candidate has deep COBOL-based mainframe expertise, enterprise architecture experience, and strong SDLC knowledge, to deliver scalable solutions for high-volume parts and logistics operations.

Qualifications

• Bachelor's degree in Computer Science, Information Systems, or related field (or equivalent experience)
• Advanced COBOL, CICS, JCL, IMS, VSAM, and DB2 expertise
• 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 across technical and business teams
• Experience working within Agile and Waterfall environments
• Stable work history within large enterprise organizations

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

Skills

COBOL

CICS

JCL

IMS

VSAM

DB2

SDLC

Production support

Agile

Waterfall

Education

Bachelor's degree in CS/IS or related field

Job description

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 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

• 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

Required Skills & Experience

• 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

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