Senior Controls Engineer Midstream

Join HF Sinclair at a pivotal point as we advance modernization, standardization, and longterm reliability across our midstream operations within the Process Controls Engineering team. Working with an experienced leadership team in the Technical Services department that empowers and actively supports expanded ownership, influence over technical direction, and continued growth in system-level responsibility and technical authority.

This role is designed with a strong emphasis on work-life balance of primarily planned work hours, minimal after-hours support, and no routine on-call expectations.

HF Sinclair Midstream is seeking an experienced Senior Controls Engineer to provide technical expertise across enterprise systems. You will play a central role in driving optimization, standardization, modernization, and operational excellence of our truck loading terminals, tank batteries, and pipelines. Lead crossfunctional collaboration to ensure process control solutions are designed and executed for longterm reliability, maintainability, and life-cycle performance of midstream assets. The location is open to several locations, Artesia, NM, Dallas, TX, Salt Lake City, UT, Casper, WY, Cheyenne, WY, Tulsa, OK.

(functions considered essential as defined by ADA)

• Define, strengthen, and govern control standards and architecture across PLC, SCADA, HMI, and Terminal Management System (TMS) platforms.
• Mature and evolve control processes, templates, reusable libraries, and standard design practices to support longterm maintainability and consistency.
• Evaluate, recommend, and champion new technologies, processes, and concepts that improve efficiency, reliability, scalability, and lifecycle performance of midstream automation systems.
• Lead technical collaboration with stakeholders to define project scope, support change management, develop cost estimates with procurement, and contribute to technically sound, on-time, on-budget delivery.
• Lead endtoend system integration including risk assessment, design, commissioning, lifecycle planning, crossfunctional technical alignment, and hazardous area technical considerations.
• Enhance and develop technical documentation including logic diagrams, cause-and-effect matrices, control narratives, and wiring and termination drawings to ensure technical quality and standard adherence.

Special assignments or tasks assigned to the employee by their supervisor, as determined from timeto time in their sole and complete discretion

10+ years of experience in Controls, Process Controls Engineering, or Automation within midstream or other Oil & Gas environments (industrial experience also considered).

Preferred Experience:

• Demonstrated ownership or stewardship of control system architecture, standards, and technical governance.
• Managing the technical lifecycle of control systems and/or process automation solutions.
• Cross-functional troubleshooting of complex issues impacting critical 24x7 operational systems.
• Demonstrated technical responsibility for control system projects from concept through commissioning, including design tradeoffs, risk decisions, and outcomes.
• Evaluation of control loop performance relative to process dynamics, control strategy intent, and operational objectives.

Bachelor's degree in Electrical, Controls Engineering, or related Engineering discipline.

• Technical risk assessment and mitigation applied to control system design, integration, and lifecycle decisions.
• Root cause analysis of complex system issues and translating findings into corrective action(s).
• Strong understanding of process control principles and control system behavior, including the role of regulatory control loops in safe, stable, and reliable operations.
• Ability to critically evaluate and guide SCADA (Wonderware experience a plus) and HMI (Red Lion experience a plus) user interface design to ensure usability, alarm effectiveness, and alignment with operational needs.
• Ability to read, analyze, and modify complex control documentation, ladder logic (Proficy Machine Edition experience a plus), schematics, and drawings.
• Strong verbal and written communication skills, including cross-functional collaboration, presentations, and the production of clear technical documentation and project materials.

Preferred Skills:

• Pipeline Experience within Oil & Gas midstream operations.
• Experience supporting or deploying Terminal Management Systems (TMS) for loading or unloading trucks or rail (Toptech or DTN is a plus).
• Using high-level programing and/or scripting (e.g., Python, SQL, .Net) in support of automation, integration, or data solutions.
• Experience working with ISA, NEC, NFPA, API standards, and similar codes.
• Professional Engineer (PE).

May be responsible for the supervision of personnel as well as contractors.

Office based with up to 25% travel required. Subject to varying weather conditions and required to work in all temperatures, including outdoors.

HF Sinclair offers a comprehensive benefits package designed to support the well-being of our employees and their families. Our benefits include, but are not limited to, the following:

• Medical Insurance
• Vision Insurance
• Dental Insurance
• Paid Time-Off
• 401(k) Retirement Plan with match
• Educational Reimbursement
• Parental Bonding Time
• Employee Discounts

We are committed to fostering a supportive and inclusive work environment, ensuring our employees have the resources needed to thrive professionally and personally. Benefit eligibility is governed by official plan documents, for more details visitTotal Rewards.

Job conditions require standing, walking, sitting, talking or hearing, making visual inspections, lifting or carrying up to 50 lbs, climbing up to 200 ft., perceiving color differences, required to wear personal protective equipment as needed and a respirator in emergency situations (beards are not permitted), ability to operate and drive all assigned company vehicles at company standard insurance rates is essential, valid State driver's license and proof of insurance required. Job conditions may require making precise hand and finger movements, twisting, stooping, crouching, kneeling, reaching or grasping, and working in confined spaces as permitted.

At HF Sinclair, we are united through our One HF Sinclair Culture, which is underpinned by our five core values of Safety, Integrity, Teamwork, Ownership and Inclusion. Developed to empower our people, our five core cultural values are at the heart of everything we do and extend to how we engage our stakeholders. These values influence our decisions, shape our behaviors and keep us connected across the entire organization. We maintain a true Safety culture for our employees, communities, environments and customers. Our goal is to make sure everyone returns home safely each day. We have a long-standing commitment to Integrity and ethical behavior and do what is right for our employees, investors, communities and the environment. We encourage employees to Step Up and Stand Out by championing a culture of Teamwork and Ownership. We foster a culture of Inclusion by encouraging diversity of experiences, viewpoints and backgrounds. What makes each of us different, together makes us stronger.

HF Sinclair Corporation, headquartered in Dallas, Texas, is an independent energy company that produces and markets high-value light products such as gasoline, diesel fuel, jet fuel, renewable diesel and other specialty products. HF Sinclair owns and operates refineries located in Kansas, Oklahoma, New Mexico, Wyoming, Washington and Utah and markets its refined products principally in the Southwest U.S., the Rocky Mountains extending into the Pacific Northwest and in other neighboring Plains states. HF Sinclair supplies high-quality fuels to more than 1,500 branded stations and licenses the use of the Sinclair brand at more than 300 additional locations throughout the country. In addition, subsidiaries of HF Sinclair produce and market base oils and other specialized lubricants in the U.S., Canada and the Netherlands, and export products to more than 80 countries. Through its subsidiaries, HF Sinclair produces renewable diesel at two of its facilities in Wyoming and also at its facility in Artesia, New Mexico. HF Sinclair provides petroleum product and crude oil transportation, terminalling, storage and throughput services to its refineries and the petroleum industry.