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Mainframe Support Engineer

Square Hiring

 

St. Louis, MO, USA

Posted On: 15+ days ago
Experience: 6+ years
Availability: Hybrid
Openings: 1
Category: Mainframe Support Engineer
Tenure: Contract - Corp-to-Corp
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Description

You will own L2/L3 production support for mainframe environments, managing incidents and restoring services to minimize business impact.

This role is on-site.

Responsibilities

  • Handle L2/L3 production support tickets and perform incident triage, analysis, and resolution within SLAs.
  • Execute standard operating procedures, runbooks, and batch monitoring for job abends.
  • Perform root cause analysis, implement fixes, and manage data updates and configuration changes.
  • Maintain operational documentation, knowledge articles, and engage with business and technical teams.
  • Support workforce management functions including time reporting and overtime equalization.

Required Skills

  • Strong experience with COBOL, JCL, and DB2.
  • Hands-on experience with ServiceNow or similar ITSM platforms for incident management.
  • Proficiency in DB2 data analysis and reporting.
  • Understanding of upstream/downstream integrations (e.g., Maximo, Workday).
  • Experience with batch processing and mainframe reporting tools.
  • Ability to manage incidents effectively and coordinate with cross-functional teams.
  • 4-6 years of experience in mainframe support or related roles.

Preferred Skills

  • Knowledge of workforce management rules and union regulations.
  • Experience with problem management and implementing permanent fixes.

Education

Any Gradute

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