Mechanical Engineering Intern (Summer 2027) – U.S. Refining Locations
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Valero
US
Summary
Interns will support reliability engineering by troubleshooting equipment and analyzing performance to improve maintenance programs. They will also assist in project engineering by developing scopes for capital and maintenance projects to ensure efficient execution.
Job Description
Are you ready to turn your passion for problem solving, teamwork and excellence into an exceptional future at Valero? As the world’s premier independent refiner of transportation fuels, Valero is dedicated to caring for our interns’ well-being through professional development, mentorship, health and welfare benefits and volunteerism.
Join the Legacy. Fuel What’s Next.
Major Accountabilities:
The internship program inspires tomorrow’s innovators by developing highly motivated Mechanical Engineering majors who are ready for challenging projects in the following areas:
Reliability Engineering:
Troubleshoots equipment operation & maintenance problems. Analyzes equipment performance. Implements programs to improve reliability & decrease reactive maintenance.
Project Engineering:
Develops & engineers project scope for variety of capital expense and maintenance projects. Supports timely & efficient project execution.
Positions may be available at any of the following locations:
Wilmington, CA - Wilmington Refinery
Meraux, LA - Meraux Refinery
Norco, LA - St. Charles Refinery
Ardmore, OK - Ardmore Refinery
Memphis, TN - Memphis Refinery
Corpus Christi, TX - Bill Greehey Refinery
Houston, TX – Houston Refinery
Texas City, TX – Texas City Refinery
Port Arthur, TX - Port Arthur Refinery
San Antonio, TX – Valero Headquarters
Sunray, TX - McKee Refinery
Three Rivers, TX - Three Rivers Refinery
This position is hourly nonexempt status, which means you are eligible for overtime pay.
- Currently pursuing Bachelor's degree (or higher degree) in Mechanical Engineering, required.
- Overall GPA of 3.2 (or higher) on a 4.0 scale, preferred.
- Graduation dates of August 2027 through May 2029, required.
- Ability to work 40 hours per week, required.
- Able and willing to work on-site and in-person, required.
Please include the following in your resume:
Overall GPA and Major - Expected Graduation Date
Please also upload a copy of your unofficial transcript along with your resume within the Attachments.
ALL applications must be submitted online by Oct 16, 2025 at 11:59 PM.
All successful candidates must be eligible to obtain a TWIC card (Transportation Worker Identification Credential). It is Valero’s policy that employees must wear this card at all times while working at the refinery. Please review eligibility criteria at https://www.tsa.gov/for-industry/twic.
Note: Valero’s pre-employment process includes successful completion of a background check, hair analysis drug screen, and pre-employment physical (if applicable).
About the Valero Intern Program
For three decades, the Valero Intern Program has helped launch exceptional careers by providing hands-on experience, meaningful projects and opportunities to work alongside industry experts. Our nationally recognized program helps interns to learn, connect and make real contributions across our operations, business teams and communities. Team Valero drives excellence from day one, and the Valero Intern Program is where it all begins.
Valero is an EEO Employer. All qualified applicants are encouraged to apply and will receive consideration for employment without regard to legally protected status, including race, color, religion, sex, national origin, age, disability, protected veteran or any other status protected by applicable federal, state or local laws.
The rate for this position is $34.50 to $41.50 per hour and represents Valero’s good faith and reasonable estimate of the range of expected compensation at the time of this posting. Actual compensation will be determined based on a number of job-related factors, including but not limited to, the individual’s qualifications and experience.
Valero is an international manufacturer and marketer of transportation fuels and petrochemical products. We are a Fortune 500 company based in San Antonio, Texas, fueled by nearly 10,000 employees and 14 petroleum refineries with a combined throughput capacity of approximately 3 million barrels per day. We also proudly operate 12 ethanol plants in the Mid-Continent of the U.S., with a combined production capacity of 1.6 billion gallons per year. Our petroleum refineries are located in the United States, Canada and the United Kingdom. Valero also is a joint venture partner in Diamond Green Diesel, which operates a renewable diesel plant in Norco, Louisiana. Diamond Green Diesel is North America’s largest biomass-based diesel plant. Valero sells its products in the wholesale rack or bulk markets in the U.S., Canada, the U.K., Ireland and Latin America. Approximately 7,000 outlets carry Valero’s brand names. Visit www.valero.com for more information, and click 'Careers' to explore opportunities!
Company size
10,001+ employees
Industry
Oil and Gas
Org type
Public Company
Headquarters
San Antonio, TX
Valero is an international manufacturer and marketer of transportation fuels and petrochemical products. We are a Fortune 500 company based in San Antonio, Texas, fueled by nearly 10,000 employees and 14 petroleum refineries with a combined throughput capacity of approximately 3 million barrels per day. We also proudly operate 12 ethanol plants in the Mid-Continent of the U.S., with a combined production capacity of 1.6 billion gallons per year. Our petroleum refineries are located in the United States, Canada and the United Kingdom. Valero also is a joint venture partner in Diamond Green Diesel, which operates a renewable diesel plant in Norco, Louisiana. Diamond Green Diesel is North America’s largest biomass-based diesel plant. Valero sells its products in the wholesale rack or bulk markets in the U.S., Canada, the U.K., Ireland and Latin America. Approximately 7,000 outlets carry Valero’s brand names. Visit www.valero.com for more information, and click 'Careers' to explore opportunities!
Company size
10,001+ employees
Industry
Oil and Gas
Org type
Public Company
Headquarters
San Antonio, TX