Mainframe Infra Engineer

TechDigital Group; McLean (VA); On-site; USD 120,000 - 150,000; Full time

Job summary

TechDigital Group is looking for a Mainframe z/OS Technical Lead to oversee outsourced mainframe services in McLean, Virginia. Your role will involve providing technical oversight, guiding a small internal team, and managing vendor operations to ensure adherence to SLAs.

The ideal candidate will have over 10 years of experience with strong expertise in z/OS, IMS, DB2, and CICS, as well as knowledge of JCL and COBOL. This position offers opportunities for technical leadership in an evolving operational landscape.

Qualifications

• 10+ years of strong hands-on mainframe experience.
• Expert knowledge of z/OS, IMS, DB2, and CICS.
• Understanding of JCL, COBOL, and batch processing.
• Experience with vendor-managed or outsourced environments.

Responsibilities

• Provide technical oversight of vendor-managed mainframe operations.
• Review daily operations, incidents, and changes.
• Validate vendor recommendations and ensure SLAs adherence.
• Act as escalation point for complex mainframe issues.
• Provide expert guidance on z/OS, Sysplex, WLM, JES, and RACF.

Skills

Mainframe experience

z/OS expertise

IMS knowledge

DB2 knowledge

CICS knowledge

JCL understanding

COBOL proficiency

Batch processing

Vendor management experience

Influence and guidance

Job description

Job Title

Mainframe z/OS Technical Lead / L3 Engineer

Job Description

We are seeking a senior Mainframe Z/OS Technical Lead to act as the client-side SME overseeing outsourced mainframe services and guiding a small internal team.

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 planning
• Communicate technical insights clearly to leadership and stakeholders

Required Skills

• 10+ years of strong hands-on mainframe experience
• Expert knowledge of z/OS, IMS, DB2, CICS
• Strong understanding of JCL, COBOL, and batch processing
• Experience with vendor-managed or outsourced environments
• Ability to influence, challenge, and guide vendors constructively

Preferred

• Mainframe modernization or optimization experience
• ITIL process exposure