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Mainframe Systems Engineer

ZealoTech People
Washington, DC Other
POSTED ON 12/11/2025 CLOSED ON 12/16/2025

What are the responsibilities and job description for the Mainframe Systems Engineer position at ZealoTech People?

Mainframe Systems Engineer – Contract to Hire

Location: Remote with occasional travel to Washington, DC (1–3 times per year)

Citizenship: U.S. Citizenship required

Clearance: Must be able to obtain a Public Trust

Employment Type: Contract to Hire (initial 6 months on contract, then full-time hire)Overview

Seeking a Mainframe Systems Engineer to support, manage, and enhance a large-scale z/OS environment for a Federal program. Role is primarily remote with minimal travel.Eligible States

AZ, DC, FL, GA, OH, OK, ME, MD, NC, SC, TX, UT, VA, WVRequired Qualifications

  • Bachelor’s degree 8 years, or 12 years of relevant experience
  • Strong z/OS experience including:
  • MVS/JES/USS commands
  • WLM, JCL, REXX, CLIST
  • SDSF, TSO/ISPF, IPCS
  • Unix, STCs, batch processing
  • Collecting documentation for IBM support
  • Experience with tools:
  • LRS VPS/DRS
  • MVS Quick Ref
  • Connect Direct
  • TN3270 tools (Rumba, Reflection)
  • FTP clients
  • Mainframe hardware/software upgrade experience
  • Disaster Recovery failover and failback experience
  • Working with IBM developers and vendors on defects/errors/performance issues
  • Audit support experience
  • Strong troubleshooting and Root Cause Analysis skills
  • Excellent written and verbal communication
  • Ability to work independently and manage priorities

Key Responsibilities

  • Support and maintain daily mainframe system operations
  • Install, maintain, and upgrade system hardware/software
  • Analyze performance and optimize system efficiency
  • Conduct system checks and troubleshoot proactively
  • Develop mainframe procedures, policies, and management processes
  • Ensure full hardware/software/application integration
  • Manage backups and data recovery
  • Provide technical support to users/teams
  • Create/maintain system documentation
  • Apply patches, updates, and maintain system security
  • Develop and maintain Disaster Recovery plans
  • Collaborate with developers and analysts
  • Participate in on-call rotation (evenings/weekends/emergencies)
  • Stay current with mainframe technology advancements

Additional Details

  • U.S. Citizenship required
  • Public Trust clearance required
  • Remote with limited annual travel (1–3 times)

Salary : $72 - $76

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