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Senior Coker Engineer


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.

Role Summary

The Senior Coker Engineer is responsible for providing process engineering subject matter expertise to Plant Coker Operations.  In addition, this role keeps abreast of coking industry trends and best practices and is responsible for benchmarking plant coking operations vs. industry peers. Further, for all Coker projects, the incumbent will perform process engineering activities and provide oversight in all project phases including feasibility and economic studies, conceptual design, identification and evaluation of alternatives, front-end design, detailed engineering, construction and start-up. The Senior Coker Engineer will also provide technical expert advice in areas of optimization, troubleshooting, and margin improvement for the Delayed Coker unit. This role will also serve as a mentor to the process engineers for all unit operations.  


Job Accountabilities

  • Interpret, summarize, and present results of data analysis in monitoring operating unit performance, troubleshooting equipment operation, and recommending operating guidelines and process improvements.
  • Work as a team with unit operators and supervisors for assigned areas of the refinery to troubleshoot problems and improve operations.
  • Provide process engineering technical support to process engineering team, production units, environmental activities and plant projects to improve unit operations, process safety and environmental performance
  • Evaluate and approve design improvements to production capacity, efficiency, process safety and environmental performance including complex designs
  • Develop/administer plant performance test runs, with the help of the process engineers, as required
  • Interact with outside consultants and vendors to improve the unit operations or solve problems
  • Work with support teams to monitor unit operations, correct problems and assist in improvements, usually for special problems or projects
  • Coordinate and assist in implementation of plant system changes, including  equipment additions, modifications and/or deletions and process design
  • Develop efficiency strategies which optimize process unit profitability by maximizing throughput and yields while minimizing operating costs
  • Maintain knowledge of latest technologies and best practices for coking in the refining industry and migrate best practices to site
  • Benchmark Coker unit performance vs. Industry and recommend improvements to attain top quartile performance in all areas including safety, reliability, operability and profitability
  • Approve process design to Units for refinery improvements, expansions, and compliance projects
  • Serve as a mentor for process engineering team
  • Provide operational and technical support to engineering team for any plant system change, including operational review, assistance with cost/benefit analysis, and participating in hazard reviews
  • Participate in plant shutdown, startup, and turnaround assistance, including equipment process inspections, startup and plant performance
  • Ensure completion of process engineering study and design for new projects and coordinate with Engineering Department to complete projects
  • Provide process support to environmental activities
  • Develop, communicate and document process engineering activities in unit support, design, plant engineering, environmental and process safety support activities
  • Provide technical assistance in PSM, Quality, Safety, and Environmental compliance
  • Determine and provide process-related cost estimates for refinery capital budgets
  • Create notifications and purchase requisitions in EAM (Equipment Asset Management system)
  • Initiate and manage contracts with outside services (water chemicals, process chemicals, catalyst, nitrogen, oxygen, and others) as required
  • Other duties as assigned


Required Qualifications

  • Bachelor’s degree in Chemical, Mechanical or Petroleum engineering
  • Eight (8) years of experience in refinery, chemical or petrochemical plant process or production experience, with at least five (5) years of Delayed Coking experience.
  • Thorough understanding of fundamental theories of heat and mass transfer, fluid dynamics, thermodynamics, separations, and control systems
  • Proven project management skills
  • Working knowledge of root cause analysis concepts and demonstrated troubleshooting expertise
  • Demonstrated ability to improve Coker unit performance
  • Solid Industry network (Peers, Consultants, Companies)
  • Demonstrated leadership skills
  • Solid coaching, counseling and mentoring skills
  • Strong technical, quantitative analysis and process orientation skills
  • Ability to draw, read and interpret engineering drawings
  • Solid verbal and written communication skills
  • Strong interpersonal and organizational skills
  • Ability to interact effectively and positively with all levels of the Organization
  • Demonstrated organizational skills and an ability to manage multiple projects and tasks in an effective manner
  • Demonstrated problem solving skills and sound engineering principles
  • Knowledge of process design, instrumentation, process control and statistics
  • Proficient with process simulation software
  • Proficient computer skills, specifically with Microsoft Office (Word, Excel, PowerPoint)
  • Must pass drug test and background check


Desired Characteristics

  • Ten (10) years of experience in refinery, chemical or petrochemical plant process or production experience, and expertise in Delayed Coking technology.
  • Considerable knowledge of safe work practices, OSHA and Environmental rules and regulations
  • Knowledge/experience with 5-S, Six Sigma or Lean Manufacturing principles

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: Engineer, Manufacturing Engineer, Construction, Lean Six Sigma, Process Engineer, Engineering, Management