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Title:  Process Engineer

Date:  Mar 26, 2026
Location: 

El Dorado, KS, US, 67042

Basic Function

HF Sinclair in El Dorado, KS is seeking an experienced Process Engineer to work in the Technical Services Department. HF Sinclair is committed to maintaining a high level of technical expertise in the downstream organization to support safe, reliable, and profitable refinery operations.

This role provides technical expertise and leadership for assigned process unit(s), with accountability for monitoring and improving unit performance. The position partners closely with Operations and cross-functional teams to troubleshoot complex issues, drive process optimization, and implement sustainable improvements that enhance safety, reliability, and economic value. The Process Engineer is a key contributor to process safety, operational excellence, and value creation through improved yields, energy efficiency, and cost reduction, including leading technical efforts during process upsets, turnarounds, and other critical operating events.

Job Duties

•    Independently monitor and manage unit performance using KPIs, trends, and alarms to ensure safe, reliable, and optimized operation; proactively identify gaps and implement corrective actions.
•    Provide technical leadership during process upsets, emergencies, and unplanned outages, including diagnostics, risk evaluation, and operating guidance. Schedule may require flexibility to respond to refinery upsets during off hours.
•    Partner with Business teams (Operations, Maintenance, Reliability, Inspection, Projects) to support unit performance, drive technical initiatives, address process challenges, and implement sustainable improvements.
•    Lead and contribute to process safety programs, including PHAs, LOPAs, MOCs, incident investigations, and PSSRs; ensure timely closure of acti items.
•    Conduct structured root cause analyses for complex issues and incidents, ensure effective mitigation, and promote incident learning across the refinery.
•    Drive unit-level process optimization to improve yields, capacity, product quality, and efficiency while maintaining safety and environmental compliance.
•    Evaluate unit constraints and risks, develop mitigation strategies, and communicate recommendations effectively to leadership.
•    Identify and support capital and expense projects to improve unit health, long-term reliability, and economic performance through Gate 0 and FEL stages.
•    Manage catalyst lifecycle, including performance evaluation, technical requirements development, vendor coordination, RFP/DSP participation, selection, changeout support, and optimization opportunities.
•    Design, develop, and utilize process simulations and engineering tools to evaluate unit performance, validate strategies, and support decision-making.
•    Provide technical support for refinery turnarounds (TAs), including scope development, pre-TA planning, field execution, and post-TA performance validation; TA execution may involve work at heights and confined space entry.
•    Collaborate with Central Technical Services and Process Technology Specialists to monitor long-term unit health, benchmark performance, and implement best practices; network with engineers across the fleet to leverage shared expertise.
•    Serve as a technical resource and mentor to less experienced engineers; promote knowledge sharing with peers and consistent application of best practices.
•    Influence and improve refinery work processes, monitoring systems, and engineering tools to enhance efficiency, reliability, and decision-making.
•    Communicate complex technical information clearly to stakeholders and demonstrate strong ownership of assigned unit(s), ensuring alignment with safety, reliability, and profitability objectives.
•    Perform special assignments or tasks as directed by the supervisor.
•    Contribute to refinery success through innovation, collaboration, and application of technical expertise.

Experience

  •        Minimum of two (2) years of progressive process engineering experience, including operational support engineering.
  •        Strong knowledge of refinery processes, process fundamentals, and process safety principles is required.
  •       Refinery or Petrochemical industry experience preferred. Unit engineering experience (Crude, FCC, Delayed Coker, SMR, Alky, Sulfur Unit, Reforming and Hydrotreating) preferred.

Education Level

A minimum of a bachelor’s degree in chemical engineering is required.

Required Skills

•    Strong analytical and problem-solving skills with the ability to apply engineering principles to unit performance, optimization, and troubleshooting.
•    Demonstrated ability to manage projects, develop technical strategies, and implement improvements.
•    Knowledge of process safety, hazard analysis (PHA, LOPA), and root cause analysis methodologies.
•    Advanced verbal and written communication skills; ability to present technical information to a wide range of stakeholders.
•    Proficiency with spreadsheets, word processing, and engineering software; ability to train others in technical and operational practices.
•    Ability to collaborate effectively across multiple teams within the refinery.
•    Strong organizational, time-management, and interpersonal skills.

Preferred Skills
•    Working knowledge of Microsoft Office and experience with process simulation and engineering tools (HYSYS, AspenPlus, ProMax, HTRI, etc.).

Supervisory/Managerial Responsibility

May supervise contractors or provide guidance to junior engineers, depending on assignment.

Work Conditions

  • Office and plant-based work with up to 10% travel required. Subject to varying weather conditions and required to work in all temperatures, including outdoors.

Benefits

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 visit Total Rewards.

Physical Requirements

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.

Our One HF Sinclair Culture:

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.

About HF Sinclair Corporation

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.

Equal Opportunity Employer

HF Sinclair Corporation is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status or any other prohibited ground of discrimination.


Nearest Major Market: Wichita

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