Unknown Company

Mainframe z/OS Developer :: Washington, DC (Remote)

Remote • Posted 6 days ago
Remote Full Time Computer and Mathematical Occupations
Mainframe z/OS Developer - Washington, DC (Remote)
Duration: 4+ months
Seeking for an experienced Mainframe z/OS Developer will have strong expertise in IBM z/OS , COBOL , JCL , CICS , DB2 , and VSAM , with experience supporting enterprise mainframe applications and participating in modernization initiatives. This role involves developing, maintaining, troubleshooting, and enhancing mission-critical mainframe applications while collaborating with cross-functional teams to support modernization and integration efforts.
Required Skills:
  • 5 years of hands-on experience with COBOL programming on IBM z/OS.
  • Proficiency in JCL, VSAM, DB2, IMS, and CICS.
  • Experience in mainframe migration projects or modernization initiatives is preferred.
  • Familiarity with mainframe communication tools such as CICS and mainframe security protocols, including RACF.
Technical Skills:
  • Must be proficient in JCL, COBOL, VSAM, and CICS.
  • Strong knowledge of batch processing and online transaction processing.
  • Must have experience with IBM utilities, TSO/ISPF, and Abend-AID.
  • Experience with Control-D, Control-M, File-AID.
  • Knowledge of best practices in mainframe migration planning, including risk assessment and resource management.
  • Familiarity with AI/ML tools (CoPilot, WatsonX, ReDux, others) for code analysis, pattern recognition, or modernization support.
  • Understanding of AI-driven code refactoring platforms/products and the ability to leverage AI to improve testing, documentation, and process optimization.
  • Strong analytical and problem-solving abilities.
  • Effective verbal and written communication skills, especially for collaborating on mainframe integration with Java developers and migration planning.
  • Ability to work independently and in a team environment with a focus on quality and attention to detail.
Preferred Skills:
  • Experience with DevOps practices on mainframes, including tools like Jenkins and Git.
  • Prior experience with performance tuning on mainframe systems.
  • Prior experience with ServiceNow.

Mainframe z/OS Developer :: Washington, DC (Remote) in Remote at Unknown Company

This position is listed as full time and able to be worked remotely.

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