Control Systems Engineer: DCS/OT Modernization in Refining

Par Pacific Holdings, Inc.; Montana; On-site; USD 85,000 - 125,000; Full time

Benefits offered by this job

Medical, dental & vision insurance

401(k) with company match

Educational reimbursement

Employee stock purchase program

Paid time off

Job summary

Par Pacific Holdings, Inc. is seeking a Control Systems Engineer in Billings, MT to join our downstream energy team.

You will act as the primary technical resource for Honeywell TDC-3000 DCS, troubleshoot hardware, software, and network issues, and lead lifecycle improvements and migrations toward Emerson DeltaV in a continuous-process refinery setting. You’ll collaborate with vendors, contractors, and engineers, develop system standards and disaster recovery plans, and support OT infrastructure

Qualifications

• Bachelor’s degree in a related technical field or equivalent experience.
• 3+ years of Honeywell TDC-3000 architecture, configuration, maintenance, and troubleshooting experience.
• Experience supporting DCS platforms in a refinery, petrochemical, chemical, or other continuous-process manufacturing environment.
• Ability to independently troubleshoot complex DCS hardware, software, networking, communications, and integration problems.
• Understanding of PLC architecture, I/O, communications, and DCS/PLC integration.
• Knowledge of industrial communication protocols such as Modbus, Modbus TCP, OPC, Ethernet/IP, and serial communications.
• Experience with industrial Ethernet, managed switches, VLANs, TCP/IP, firewalls, and PCN.
• Knowledge of Windows Server, Active Directory, virtualization, backups, recovery, patching, and OT infrastructure.
• Understanding of industrial cybersecurity within process control environments.
• Ability to interpret P&IDs, loop drawings, wiring diagrams, logic diagrams, and network diagrams.

Responsibilities

• Serve as the primary technical resource for the Honeywell TDC-3000 DCS.
• Troubleshoot DCS hardware, software, networking, communications, and system integration issues.
• Lead DCS configuration changes, control strategy modifications, graphics development, upgrades, and lifecycle improvements.
• Support the refinery's migration from Honeywell TDC-3000 to Emerson DeltaV.
• Troubleshoot integration between DCS, PLCs, SIS, analyzers, historians, packaged equipment, and other industrial systems.
• Support refinery OT infrastructure, including servers, workstations, industrial networks, firewalls, virtualization, and backups.
• Apply industrial cybersecurity and defense-in-depth practices to control system environments.
• Lead or support capital projects, shutdowns, system upgrades, FATs, SATs, commissioning, and startup activities.
• Provide technical direction to vendors, contractors, technicians, and engineers.
• Develop system standards, documentation, backup strategies, disaster recovery procedures, and lifecycle plans.

Skills

Honeywell TDC-3000

DCS troubleshooting

DCS/PLC integration

Industrial networking

Windows Server/AD

Industrial cybersecurity

P&ID & drawings interpretation

Education

Bachelor’s degree in Chemical Engineering, Electrical Engineering, Computer Engineering, Computer Science, IT, Electronics, or related technical field

Tools

Emerson DeltaV

Triconex SIS

Job description

Par Pacific Holdings, Inc. is seeking a Control Systems Engineer in Billings, MT to join our downstream energy team.

You will act as the primary technical resource for Honeywell TDC-3000 DCS, troubleshoot hardware, software, and network issues, and lead lifecycle improvements and migrations toward Emerson DeltaV in a continuous-process refinery setting. You’ll collaborate with vendors, contractors, and engineers, develop system standards and disaster recovery plans, and support OT infrastructure