Senior Refinery Chemist

Valero; Ardmore (OK); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

401K match

Pension plan

Healthcare

Job summary

Valero Ardmore Refinery is seeking a Senior Refinery Chemist to lead laboratory operations and oversee Lab Technicians on-site. The role ensures regulatory compliance, develops methods, and drives quality in fuel testing at our Ardmore facility.

The position emphasizes training, data integrity, and collaboration with vendors and regulatory bodies to support safe, accurate results and continuous improvement in the lab environment.

Qualifications

• Bachelor's degree in a science related field.
• 5 years of directly related laboratory experience.
• Willingness to work on-site at Valero Ardmore Refinery.

Responsibilities

• Perform non-routine sample testing and preparation.
• Maintain instrument calibration and method development/optimization.
• Support compliance with fuel quality and audit records.
• Develop training materials and safety procedures for lab staff.
• Oversee technicians and ensure data quality.
• Interact with vendors, customers, and regulatory agencies.
• Assist with special projects as directed by Laboratory Manager.
• Order instrumentation, consumables, reagents and lab supplies.

Skills

Lab testing

Regulatory compliance

Training technicians

Instrument maintenance

Quality control

Vendor interaction

Education

Bachelor of Science in Chemistry or related field

Tools

LIMS systems

Calibration equipment

Job description

Valero is the best-in-class producer of essential fuels and products that are foundational to modern life. We invite you to join our ~10,000 employees to drive exceptional results for our company, the energy industry and our community.

A Senior Refinery Chemist performs laboratory operations, maintains regulatory compliance, oversees and trains Lab Technicians and completes special projects.

Duties

• Performs non-routine sample testing and preparation
• Performs instrument maintenance and calibration, methods development & optimization.
• Assists with compliance protocols relative to fuel quality, statistical quality control, audit records, document control
• Performs special projects as assigned by Laboratory Manager
• Maintains analytical specialization in certain areas of laboratory
• Develop training documents and safety procedures
• Training and qualification of laboratory technicians
• Oversee technicians and monitor quality of test data
• Interact with vendors, customers and regularatory agencies
• Other duties as assigned (ordering of instrumentation, consumables, reagents, and general laboratory supplies, etc.)

This position is salaried exempt status, which means you are not eligible for overtime pay.

Primary Location

US-OK-Ardmore

Job Posting

Nov 3, 2026, 9:12:43 AM

Unposting Date

Ongoing

Minimum Requirements

• Able and willing to work on-site, in-person at the Valero Ardmore Refinery, required.
• Bachelor of Science degree in Chemistry, Biology, Bio-Chemistry, Physics, or related field required.
• 5 years of directly related laboratory experience required.

Preferred Requirements

• Experience in a petroleum lab is preferred.
• Knowledge of LIMS systems is preferred.
• Knowledge of Statistical Quality Control charting is preferred.

Benefits

Need more reasons to work for a company that is both professionally challenging and culturally rewarding? Take a look at some of our best-in-class benefits:

• Competitive Pay and Annual Bonus Program
• 100% match on 401(K) up to 7%, with immediate vesting
• Company-sponsored Pension Plan
• Comprehensive Healthcare and Wellness Program

Benefits described above are highlights only, subject to an employee’s eligibility and work location.

Discover more about Ardmore and how we’re making a difference there.

Position level and salary will be commensurate with qualifications and experience.

Valero's employees and team-focused culture drive our success. We’re invested in our dedicated workforce through a comprehensive, customizable benefits package, while supporting a caring culture that delivers a rewarding work environment built on teamwork, excellence and career growth. To explore the ways we build a stronger team, visit Valero.com/Careers .

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.

Please be advised, if you are viewing this position on a website that lists an estimated salary rate/range, it was not provided by Valero. Valero’s market specific salary rate/range will be provided during the recruiting process and tends to be higher than what is estimated by such websites.

The posting may close earlier than the advertised date based on applications received.

Note: Valero’s pre-employment process includes successful completion of a background check and hair-analysis drug screen.