Mainframe Developer

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Mainframe Developer

• Location: Henrico, Virginia 23233
• Work model: On-site
• Posted 2 weeks ago
• Job ID: JPC - 210628

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Job Description

Mainframe Developer - Senior Applications Specialist (Remote, Virginia)

[About the Role]

Join a high-impact team as a Senior Mainframe Applications Developer, supporting mission-critical enterprise systems for a stable, multi-year project. This is a unique opportunity to engage in a structured knowledge transfer with a senior subject matter expert and take ownership of essential legacy applications. Contribute to modernization and migration efforts, ensuring business continuity for a major transportation/logistics environment. Remote work is available, with preference for candidates in Virginia or the Mid-Atlantic region.

[Responsibilities]

• Maintain and enhance complex mainframe applications on IBM z/OS platforms
• Analyze and modify COBOL, JCL, CICS, DB2, and VSAM legacy codebases
• Diagnose and resolve production issues, performing root-cause analysis
• Support application modernization and mainframe-to-modern-platform migration initiatives
• Map application dependencies and integrations between legacy and modern systems
• Collaborate with internal teams, including DBAs, storage, and application groups
• Document and participate in a comprehensive knowledge transfer process
• Ensure compliance with SOX requirements for order-to-cash business processes
• Provide limited production support, including occasional early-morning batch job investigation

[Required Skills and Experience]

• 7+ years of IBM z/OS mainframe development
• Senior-level COBOL development proficiency
• Advanced hands-on experience with JCL, CICS, DB2, VSAM
• Proven troubleshooting, debugging, and root-cause analysis ability
• Experience maintaining and enhancing existing enterprise applications
• Ability to independently understand and modify legacy codebases
• Strong written and verbal communication skills
• Meticulous attention to detail and collaborative mindset

[Preferred Skills]

• Application modernization and migration experience
• API and system integration background
• Knowledge of transportation, logistics, or supply chain systems
• Familiarity with CA7, Tidal, FTP, or similar batch scheduling tools

[Benefits]

• Long-term, stable contract (3-5 years) with growth and skill-building opportunities
• Structured mentorship and knowledge transfer from a senior expert
• Flexible remote work with occasional onsite collaboration if local
• Supportive, team-oriented environment with experienced professionals
• Monday-Friday, 8:00 AM - 5:00 PM Eastern schedule

[How to Apply]

Submit your resume and a brief cover letter highlighting your mainframe application development experience. Candidates must be authorized to work in the United States without sponsorship.

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Job details

Job ID JPC - 210628

Location Henrico, Virginia, United States

Work Model On-site

Job Type C2C

Posted September 30, 2026

Skills Must-Haves Senior-level COBOL development experience Strong troubleshooting/debugging skills JCL CICS DB2 VSAM Experience working independently in IBM z/OS environments Ability to understand and modify existing legacy codebases

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