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Hollyfrontier
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Tulsa, OK
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4
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Hollyfrontier
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Tulsa, OK
in last 30 days
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Distributed Control System Migration Specialist
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Hollyfrontier
Tulsa, OK
L5 Senior
September 11th, 2026
Network and Computer Systems Administrators
Computer Systems Design Services
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OT System & Infrastructure Specialist
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Hollyfrontier
Tulsa, OK
L6 Lead
September 19th, 2026
Network and Computer Systems Administrators
Computer Systems Design Services
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Distributed Controls Systems Monitoring Analyst
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Hollyfrontier
Tulsa, OK
L5 Senior
September 11th, 2026
Petroleum Pump System Operators, Refinery Operators, and Gaugers
Petroleum Bulk Stations and Terminals
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Controls Engineer Midstream
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Hollyfrontier
Tulsa, OK
L5 Senior
September 11th, 2026
Mechatronics Engineers
Engineering Services
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