Tyler, TX, US, 75702

Delek US Holdings, Inc. is a diversified downstream energy company with assets in petroleum refining, logistics, renewable fuels and convenience store retailing.  The refining assets consist of refineries operated in Tyler and Big Spring, Texas, El Dorado, Arkansas and Krotz Springs, Louisiana with a combined nameplate crude throughput capacity of 302,000 barrels per day.


The logistics operations primarily consist of Delek Logistics Partners, LP.  Delek US Holdings, Inc.and its affiliates own approximately 63% (including the 2 percent general partner interest) of Delek Logistics Partners, LP.  Delek Logistics Partners, LP (NYSE:DKL) is a growth-oriented master limited partnership focused on owning and operating midstream energy infrastructure assets.


The convenience store retail business is the largest 7-Eleven licensee in the United States and operates approximately 300 convenience stores in central and west Texas and New Mexico.

Job Summary:

The Chemist is responsible for analyzing refinery products throughout the refining process to ensure quality and regulatory standards are met for raw, in-process and finished petroleum material, trains Laboratory Technicians and complete special projects.  This role will support reliable operations to the Lab and other areas of the refinery.


Job Responsibilities:

- Maintain safe, clean and orderly working environment by complying with safety and laboratory procedures, rules, and regulations

- Provide advanced analytical support for refinery operations, to maintain target quality of unit streams.

- Performs analyses, preventative and routine maintenance and calibration of analyzers.

- Maintains analytical specialization in GC instrumentation and methods.

- Write and maintain laboratory SOP’s - Support Quality Control Program

- Develop and assist with training material for job specific duties.

- Provide advanced analytical support for Process Engineering problem solving.

- Provide advanced analytical support for Supply and Distribution to control raw materials and ensure quality of finished products, including retaining samples for future analysis verification

- Run the necessary standards to ensure the accuracy and reliability of the laboratory equipment

- Maintain required inventory levels of supplies.

- Communicate and accurately record results using LIMS software.

- Promote teamwork in plant wide problem resolution

- To work on improving existing methods or creating new ones to better meet the needs of the refinery

- Other duties as assigned


Required Qualifications – Education, Skills & Experience:

At least 2 years of related experience. Bachelor's degree in a related field or equivalent experience.


Preferred Qualifications – Education, Skills & Experience:

Bachelor of Science degree in Chemistry.

3 years of laboratory experience, possibly with petroleum products

Experience with Gas Chromatography, including calibrating and mechanical repairs

Experience in analytical instrumentation and Method Development

Experience in analyzing data, troubleshooting and instrument repair

Experience with Statistical Quality Control Chart management.

Experience with using LIMS software

Experience with technical writing.

We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or national origin, disability status, protected veteran status, or any other characteristic protected by law. Equal Opportunity Employer/Disabled/Veterans.


It’s an exciting time to join Delek. We’re on a mission to attract, retain, and engage the best and brightest talent – those who are great team players and leaders who make it their first priority to serve. 

  • We are performance driven
  • We value a passion for excellence
  • We value teamwork
  • We value and reward hard work and dedication

Delek US offers the opportunity to provide you with more than a job – we want to help you build a career. 

Since our inception, our ability to hire the right people for the job has served us well, resulting in an impressive record of consistent growth and profitability. With more than 3,500 employees in nine states, we have brought together a diverse team of professionals passionate about investing their time and expertise in one of the most dynamic downstream energy companies in the market today. 

Welcome to Delek US Holdings







Nearest Major Market: Tyler

Job Segment: Process Engineer, Refinery, Technical Writer, Instrumentation, Retail, Engineering, Energy, Technology