IT Mainframe Developer

++IT Mainframe Developer++

Location: 100% REMOTE

Visa Type:
Citizens / / H1 B1

** Contact Name:
** Sri

The IT Mainframe Developer designs, develops, enhances, maintains, and supports enterprise applications running on mainframe platforms. The role focuses on delivering reliable, secure, and high-performing solutions for critical business systems, often supporting banking, insurance, retail, healthcare, manufacturing, or other large-scale enterprises.

• Design, develop, test, debug, and maintain mainframe applications.
• Develop and enhance applications using COBOL, JCL, CICS, DB2, and VSAM.
• Analyze business and technical requirements and translate them into application solutions.
• Perform application coding, unit testing, integration testing, and production implementation.
• Troubleshoot production issues and perform root-cause analysis.
• Optimize application performance, batch processing, and database operations.
• Develop and maintain JCL jobs, procedures, utilities, and batch processes.
• Work with DB2 databases, including SQL development, data access, and performance optimization.
• Develop and support CICS online transaction-processing applications.
• Maintain interfaces between mainframe applications and distributed/cloud systems.
• Participate in application modernization, migration, and integration initiatives.
• Perform impact analysis for system enhancements and changes.
• Prepare technical specifications, design documentation, test plans, and deployment documentation.
• Follow SDLC, change-management, security, and IT governance standards.
• Collaborate with business analysts, architects, QA teams, infrastructure teams, and other developers.
• Participate in production support and on-call rotations, where required.

• COBOL:
  Application development
• JCL:
  Batch processing/job control
• DB2:
  Database & SQL
• CICS:
  Online transaction processing
• VSAM:
  File/data management
• z/OS:
  Mainframe operating system
• TSO/ISPF:
  Mainframe development environment
• Endevor / Change Man:
  Source & change management
• Git / CI/CD:
  Increasingly used in modernization
• REXX:
  Scripting/automation
• MQ:
  Enterprise messaging
• CA7 / Control-M:
  Job scheduling

Requirements → Design → COBOL/JCL Development → DB2/CICS Development → Unit Testing → Integration Testing → QA → Production Deployment → Production Support

• Bachelor's degree in Computer Science, Information Technology, Engineering, or related field.
• Typically 5+ years of mainframe development experience for a senior position.
• Strong experience with COBOL, JCL, DB2, and CICS.
• Experience with SDLC and enterprise application development.
• Strong troubleshooting and analytical skills.
• Experience working with production-critical applications.
• Strong communication and collaboration skills.

For a Senior IT Mainframe Developer, employers commonly expect additional experience with:

• Complex COBOL application architecture
• DB2 performance tuning
• CICS transaction optimization
• Large-scale batch processing
• Production incident management
• Application modernization
• Mainframe-to-cloud integration
• API and distributed-system integration
• Technical leadership and mentoring
• Code reviews and development standards
• Migration/conversion projects