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Thomas Mitchell

@thomasmitchell

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Production Support Specialist focused on mainframe scheduling and 24/7 operational continuity.

United States

Message

What I'm looking for

I seek a role ensuring reliable 24/7 production scheduling and automation, with opportunities to improve processes, support audits and disaster recovery, and collaborate with stakeholders on schedule optimization.

I am a Production Support Specialist with extensive experience managing automated scheduling across Mainframe, UNIX, and zLinux environments, driving operational continuity and efficiency. I have managed large-scale workloads—over 900,000 jobs monthly—using IBM Tivoli Workload Scheduler and related tools, and I routinely support disaster recovery, audits, and secure dataset access.

My work emphasizes strong analytical problem solving, collaboration with stakeholders, and rigorous change control and compliance practices. I develop and maintain TWS UNIX scripts, administer calendars and rollover cycles, and provide on-call support to ensure 24/7 availability while optimizing scheduling requirements and maintaining data retention policies.

Experience

Work history, roles, and key accomplishments

Production Support Specialist

Leidos

Aug 2016 - Oct 2025 (9 years 2 months)

Managed enterprise automated scheduling across Mainframe, UNIX, and zLinux using IBM Tivoli Workload Scheduler, administering calendars and handling over 900,000 monthly jobs to ensure 24/7 operational continuity and audit compliance.

IBM Tivoli Workload Scheduler TWS UNIX Scripting JCL TDWC job scheduling RACF Disaster Recovery ServiceNow

Senior Computer Operations Support Analyst

Lockheed Martin

Aug 2002 - Aug 2016 (14 years)

Developed and deployed TWS UNIX scripts and managed enterprise job flows across Mainframe and zLinux, supporting backup/ABAR processes and executing year-end rollovers while resolving job failures and supporting audits.

TWS UNIX Scripting JCL TDWC Backup Disaster Recovery