Machinist/Mechanic Technician

Basic Function

HF Sinclair in Sinclair, WY is seeking a Machinist / Pump Mechanic who will be responsible for inspecting, troubleshooting, repairing, rebuilding, and maintaining pumps, rotating equipment, and associated mechanical systems throughout the refinery. This position supports safe, reliable, and efficient refinery operations by applying advanced mechanical and machining skills to maintain critical equipment.

Job Duties

(functions considered essential as defined by ADA)

• Diagnoses, repairs, rebuilds, and installs centrifugal, positive displacement, reciprocating, specialty pumps and compressors.
• Performs precision machining operations using lathes, milling machines, drill presses, grinders, and other machine shop equipment.
• Inspects and repairs shafts, sleeves, impellers, bearings, couplings, seals, and related rotating equipment components.
• Performs equipment alignment utilizing dial indicators and laser alignment systems.
• Conducts preventive, predictive, and corrective maintenance activities on rotating equipment.
• Reads and interprets blueprints, drawings, schematics, maintenance manuals, and technical specifications.
• Uses precision measurement tools including micrometers, calipers, bore gauges, and dial indicators to verify tolerances.
• Performs installation and replacement of bearings, mechanical seals, packing, and gaskets.
• Supports refinery turnarounds, shutdowns, and emergency maintenance activities.
• Documents maintenance activities within the computerized maintenance management system (CMMS).
• Assists with troubleshooting equipment failures and identifying root causes.
• Adheres to all safety, environmental, and operational procedures.
• Maintains good housekeeping practices in designated work areas.
• Works collaboratively with Operations, Reliability, Engineering, and Maintenance personnel to improve equipment reliability and performance.

SPECIAL ASSIGNMENTS

• Participates in refinery emergency response activities as assigned.
• May be required to work overtime, weekends, holidays, and/or call-out assignments.
• Supports continuous improvement and reliability initiatives.

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

Experience

Minimum three (3) years of industrial machinist, pump mechanic, or rotating equipment maintenance experience preferred. Experience in refining, petrochemical, power generation, mining, pipeline, or heavy industrial settings preferred.

Education Level

High School Diploma or equivalent required. Completion of a Machinist Apprenticeship Program, Journeyman certification, or equivalent industrial maintenance experience preferred. Certifications in automotive, heavy equipment repairs preferred.

Required Skills

Strong knowledge of rotating equipment maintenance and repair. Ability to operate machine shop equipment safely and efficiently. Ability to read and interpret engineering drawings and maintenance documentation. Knowledge of precision measurement and alignment techniques. Demonstrated troubleshooting and problem-solving skills. Proficiency with computer-based maintenance systems.

Supervisory/Managerial Responsibility

Work Conditions

Outdoors environment based. Petroleum refinery, plant environment, including not limited to chemicals, elevated work areas, and tanks, rotating equipment, and working in confined spaces. Able to work in adverse weather conditions. Required to work a flexible schedule, (e.g. overtime, weekends, callouts or holidays).

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, twisting, stooping, crouching, kneeling, talking or hearing, making visual inspections, making precise hand and finger movements, reaching or grasping, lifting and/or carrying up to 50 lbs., pushing and/or pulling up to 50 lbs., climbing up to 100 ft., 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, perceiving color differences, wearing personal protective equipment (beards not permitted), and strenuous physical activity. 

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 lubricants and specialty products. HF Sinclair owns and operates refineries located in Kansas, Oklahoma, New Mexico, Wyoming, Washington and Utah. HF Sinclair provides petroleum product and crude oil transportation, terminalling, storage and throughput services to our refineries and the petroleum industry. HF Sinclair markets its refined products principally in the Southwest U.S., the Rocky Mountains extending into the Pacic Northwest and in other neighboring Plains states and supplies high quality fuels to more than 1,750 branded stations and licenses the use of the Sinclair brand to more than 350 additional locations throughout the country. HF Sinclair produces renewable diesel at two of its facilities in Wyoming and also at its facility in New Mexico. 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.

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.