Control Systems Engineer
Posting Start Date: 10/13/26
Job Location (Short): Billings, MT, USA, 59101
Control Systems Engineer
The Opportunity
• Control Systems Engineer at a growth-oriented downstream energy company
• Competitive salary with a strong comprehensive benefits package
• Opportunity to work in a positive, collaborative, and inclusive work environment
• Career growth and development opportunities within a unique and growing energy company
• Reporting to the Director, Operational Technology, you'll serve as a technical resource and have the opportunity to work on complex process control systems, modernization projects, OT infrastructure, and industrial cybersecurity in a continuous-process environment.
Key activities include:
• 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.
Note: This description is intended to give you a general overview of the position. Additional responsibilities and opportunities may be identified based on current business needs.
Qualifications
To meet the basic qualifications for this role, you will have legal authorization to work permanently in the United States for any employer without requiring a visa transfer or visa sponsorship.
Additional qualifications include:
Required:
• Bachelor's degree in Chemical Engineering, Electrical Engineering, Computer Engineering, Computer Science, IT, Electronics, or a related technical field preferred. Equivalent experience will be considered.
• 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 Process Control Networks (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, cause-and-effect documentation, and network diagrams.
Preferred:
• Emerson DeltaV experience.
• Triconex Safety Instrumented Systems (SIS) experience.
• Alarm management and abnormal situation management.
• Control loop performance and process control optimization.
• Refinery PSM, MOC, and formal engineering change processes.
• Experience leading DCS modernization or migration projects.
• Experience with FAT, SAT, commissioning, startup, and field implementation.
Note: Par Pacific will not accept calls or unsolicited resumes from third-party recruiters. All candidates are required to apply through this web posting.
