Control Systems Engineer – Refinery Automation Location: Billings, Montana Industry: Refining / Process Manufacturing Are you a Control Systems Engineer who wants to take ownership of critical refinery automation systems and play a key role in a major DCS modernization project? Our client is seeking a Control Systems Engineer to serve as the technical resource for a Honeywell TDC-3000 DCS while helping lead the transition to Emerson DeltaV. This is an opportunity to work on complex process control systems, modernization projects, OT infrastructure, and industrial cybersecurity in a continuous-process environment. What You’ll Do • 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. What We’re Looking For • 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. • 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. Preferred Experience • 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. Why Consider This Opportunity? You’ll have the opportunity to own critical control system infrastructure, influence long-term automation strategy, and help shape a refinery’s transition from a legacy DCS to a modern Emerson DeltaV platform. The role combines process control engineering, OT infrastructure, cybersecurity, project leadership, and hands-on troubleshooting. If you have Honeywell TDC-3000 experience and want to take the next step in your control systems career, apply today. 6905