Full-time Posted June 22, 2026
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Job Description

Our client, a IT Services and Consulting company, is looking for a Mainframe z/OS Technical Lead / L3 Engineer for their McLean, VA/Hybrid location. Responsibilities:

+ Provide technical oversight of vendor-managed mainframe operations

+ Review daily operations, incidents, RCA, changes, and releases

+ Validate vendor recommendations and ensure adherence to SLAs and ITIL processes

+ Act as escalation point for complex mainframe issues

+ Provide expert guidance on z/OS, Sysplex, WLM, JES, and RACF

+ Oversee IMS (DB/DC), DB2 for z/OS, and CICS environments

+ Review system performance, capacity, availability, and stability

+ Recommend improvements for performance, automation, and cost optimization

+ Identify risks, technical debt, and modernization opportunities

+ Review DR, BCP, backup, and recovery strategies

+ Provide architectural input for upgrades and future-state planni...

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