Senior Controls Engineer

• Base Pay $ - $ / Year
• Job Category Electrical Automation & Controls, Engineering, Control Systems Engineering
• Employee Type FT Exempt
• Travel 40%
• Manage Others Yes

No matter the role, everyone at Expanse, a Mid Central company, brings it. EVERY. DAY.

Our smart, gritty team supports, challenges, and motivates each other to think hard and work harder—from our headquarters in OKC to our field offices in Colorado, North Dakota, Oklahoma, Pennsylvania, Utah, and Texas. Whether it's asset management, field services, Assembly Maintenance & Overhaul (AMO), Mid Central and Expanse Electrical scalable, data-driven solutions reduce costs and increase productivity for our customers. We shorten timelines .

We increase uptime . And we push the energy industry forward.

Got what it takes to join us? Bring it.

The Senior Controls Engineer is responsible for designing, developing, and maintaining the control application for an unattended wellhead pressure control product. This role leads system architecture, critical control logic, redundant sensor validation, controller-side alarm management, factory acceptance testing, and commissioning. The Senior Controls Engineer provides ongoing technical ownership, developing new features and implementing field-driven improvements as the product line grows. You will apply the same engineering approach to facility construction engineering and programming across our North Dakota and Texas operations, including production facilities, compression, panel plant builds, and SCADA/HMI systems.

Across all of this work, you will write code that other people can maintain , set the standards others build on, and work directly with customers' technical teams.

• Architect, program, and document PLC applications on Schneider Electric and Rockwell Automation platforms.
• Review P&IDs and functional specifications to define I/O requirements and control strategies.
• Implement programs from customer-issued Cause & Effect matrices and functional specifications. Raise contradictions and gaps formally instead of working around them.
• Develop deterministic logic for time critical shutdown and relief functions, and demonstrate that it meets defined response time requirements.
• Build controller-side alarm lifecycle management, including state, acknowledgement, and classification, that stays synchronized across multiple HMIs and a remote SCADA system and recovers cleanly after communication loss.
• Design redundant-sensor validation, fault discrimination, degraded mode operation, and cold-start behavior.
• Implement role based command authority and event journaling, with validation enforced in the controller.
• Integrate field networks and telemetry:
  Ether Net /IP, Ethernet RIO on fiber rings, Modbus, CANopen , and J1939. Include store-and-forward telemetry to cloud SCADA.

• Develop and maintain HMI and SCADA applications in AVEVA (Wonderware) InTouch and System Platform, Factory Talk View, and Schneider Electric Vijeo Designer
• Define HMI tag interfaces and coordinate with HMI developers.

• Write and run factory acceptance tests (FAT) and site acceptance tests (SAT), including formally specified validation test blocks.
• Support yard testing, field commissioning, and startup in ND and TX.
• Work on-site at customer locations to commission, start up, and troubleshoot systems alongside customer operations teams and Expanse field crews
• Prepare engineering documentation and handover packages, train customer personnel, and recommend spare parts.
• Take part directly in customer technical working sessions.
• Establish and maintain programming standards, code structure, and documentation across the division.
• Coordinate with Expanse’s panel engineering team and…