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.
Numbers & Facts
Location
Washington, DC (Remote)
Skills
Analysis Skillsunmatched
Artificial Intelligence (AI)unmatched
Best Practicesunmatched
Cobol Programming Languageunmatched
Communication Skillsunmatched
Compuware Abend-AID Fault Managerunmatched
Compuware File-aidunmatched
Cross-Functionalunmatched
Detail Orientedunmatched
DevOpsunmatched
Documentationunmatched
Gitunmatched
IBM CICS (Customer Information Control System)unmatched
IBM DB2unmatched
IBM IMS Databaseunmatched
IBM Product Familyunmatched
IBM TSO/ISPFunmatched
IBM z-OS Operating Systemunmatched
Identify Issuesunmatched
JCL (Job Control Language)unmatched
Javaunmatched
Jenkinsunmatched
Mainframe Computerunmatched
Mainframe Operating Systemunmatched
Pattern Matchingunmatched
Performance Tuning/Optimizationunmatched
Presentation/Verbal Skillsunmatched
Problem Solving Skillsunmatched
Process Improvementunmatched
RACF (Resource Access Control Facility)unmatched
Refactoringunmatched
Resource Managementunmatched
Risk Analysisunmatched
Security Protocolsunmatched
ServiceNowunmatched
Software Administrationunmatched
System Migrationunmatched
Team Playerunmatched
Transaction Processing/Managementunmatched
Writing Skillsunmatched
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