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Refinery Process Engineer Jobs in Tennessee (NOW HIRING)

Merrick & Company

Process Engineer III

Oak Ridge, TN · On-site

$102K/yr

Develop and refine Piping & Instrumentation Diagrams (P&IDs), Process Flow Diagrams (PFDs), and ... Partner with I&C engineers to develop PLC/ PCS architectures, I/O lists, control logic, and alarm ...

Merrick & Company

Process Engineer III

Oak Ridge, TN · Hybrid

Develop and refine Piping & Instrumentation Diagrams (P&IDs), Process Flow Diagrams (PFDs), and ... Partner with I&C engineers to develop PLC/ PCS architectures, I/O lists, control logic, and alarm ...

Enexor

Process Engineer

Franklin, TN

Why This Role Matters We're hiring a Process Engineer with a strong mechanical foundation to help ... refining models accordingly. * Mechanical Aptitude: Hands-on experience sizing pressure vessels ...

Enexor

Process Engineer

Franklin, TN · On-site

Why This Role Matters We're hiring a Process Engineer with a strong mechanical foundation to help ... refining models accordingly. * Mechanical Aptitude: Hands-on experience sizing pressure vessels ...

Enexor

Process Engineer

Franklin, TN · On-site

Why This Role Matters We're hiring a Process Engineer with a strong mechanical foundation to help ... refining models accordingly. * Mechanical Aptitude: Hands-on experience sizing pressure vessels ...

Delek US

Lead LP Planning & Economics Engineer

Brentwood, TN · On-site

$97K - $127.70K/yr

Eight (8) or more years process engineering, refining planning, LP modeling, and/or product blending experience in refining industry (Required) * No Licensure or Certification Required. JOB ...

Delek US

Lead LP Planning & Economics Engineer

Brentwood, TN · On-site

$97K - $127.70K/yr

Eight (8) or more years process engineering, refining planning, LP modeling, and/or product blending experience in refining industry (Required) * No Licensure or Certification Required. JOB ...

FindTalent

Senior Electrical Engineer

Pigeon Forge, TN · On-site

$99.60K - $129.60K/yr

... refine processes and recommend best practices. Qualifications: * Education: Bachelor's degree in ... Active Professional Engineer (PE) license is required. * Experience: A minimum of 10 years in ...

EPB

Protection & Controls Engineer

Chattanooga, TN · On-site

$76K - $98.30K/yr

... refine processes that improve operational efficiency, effectiveness, reliability, and customer ... Provide engineering support for DER projects. -Create, evaluate, and maintain specifications for ...

EPB

Protection & Controls Engineer

Chattanooga, TN

$76K - $98.30K/yr

... refine processes that improve operational efficiency, effectiveness, reliability, and customer ... Provide engineering support for DER projects. -Create, evaluate, and maintain specifications for ...

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Refinery Process Engineer information

See Tennessee salary details

$64.9K

$124.7K

$211.5K

How much do refinery process engineer jobs pay per year?

As of May 31, 2026, the average yearly pay for refinery process engineer in Tennessee is $124,693.00, according to ZipRecruiter salary data. Most workers in this role earn between $92,100.00 and $133,900.00 per year, depending on experience, location, and employer.

What does a Refinery Process Engineer do?

A Refinery Process Engineer is responsible for designing, optimizing, and troubleshooting processes within an oil refinery to ensure efficiency, safety, and regulatory compliance. They analyze data, monitor equipment performance, and recommend improvements to enhance productivity and reduce costs. Additionally, they work closely with operations, maintenance, and safety teams to implement process modifications and resolve technical issues. Their role is crucial in maximizing yield, minimizing energy consumption, and ensuring environmental compliance.

What are the key skills and qualifications needed to thrive in the Refinery Process Engineer position, and why are they important?

To excel as a Refinery Process Engineer, a strong background in chemical engineering, process optimization, and safety protocols is essential, typically supported by a relevant engineering degree. Proficiency with process simulation software (such as Aspen HYSYS or CHEMCAD), knowledge of distributed control systems (DCS), and familiarity with industry certifications like Six Sigma or Professional Engineer (PE) licensure are highly valued. Problem-solving abilities, strong communication, and teamwork skills help professionals navigate dynamic refinery environments and coordinate with cross-functional teams. These competencies are crucial for ensuring efficient, safe, and compliant operations within complex refinery processes.

What are some of the typical day-to-day responsibilities for a Refinery Process Engineer?

As a Refinery Process Engineer, your main responsibilities typically include monitoring and optimizing production processes, troubleshooting technical issues, and ensuring compliance with safety and environmental regulations. You may also be involved in analyzing process data, implementing improvements, and coordinating with operations, maintenance, and other engineering teams to maintain efficient plant performance. Your day could involve both desk work—such as process modeling and reporting—and fieldwork in the refinery, observing equipment and working closely with plant personnel. This blend of tasks helps ensure the refinery operates safely, efficiently, and at peak capacity.
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What are popular job titles related to Refinery Process Engineer jobs in TN? For Refinery Process Engineer jobs in TN, the most frequently searched job titles are:
Refinery Process Engineer jobs near you
Infographic showing various Refinery Process Engineer job openings in Tennessee as of May 2026, with employment types broken down into 47% Full Time, 47% Part Time, and 6% Nights. Highlights an 5% Physical, 50% Hybrid, and 45% Remote job distribution, with an average salary of $124,693 per year, or $59.9 per hour.
Process Engineer III

Process Engineer III

Merrick & Company

Oak Ridge, TN • On-site

$102K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 26 days ago

Job description

OVERVIEW
Merrick & Company is seeking a Process Engineer III with Instrumentation & Controls (I&C) expertise to join our team in Oak Ridge, TN. This role is well-suited for engineers who work at the intersection of process engineering and control systems, combining strong technical fundamentals with experience in instrumentation, automation, and system integration.
The selected candidate will contribute to advanced nuclear and energy-related projects, ensuring that process systems are designed with effective control, monitoring, and automation strategies. This position requires close coordination with multidisciplinary teams, including mechanical, electrical, and I&C engineers.
WHAT YOU'LL DO
  • Develop and refine Piping & Instrumentation Diagrams (P&IDs), Process Flow Diagrams (PFDs), and General Arrangement Drawings, incorporating detailed instrumentation and control intent.
  • Perform process, equipment, and hydraulic sizing calculations.
  • Conduct sizing of control valves, pressure relief devices, and flow elements, considering system dynamics and control performance.
  • Define and document process control philosophies, control narratives, and functional descriptions.
  • Design and specify instrumentation systems, including transmitters, analyzers, and control elements.
  • Partner with I&C engineers to develop PLC/ PCS architectures, I/O lists, control logic, and alarm management strategies.
  • Translate process requirements into automated control strategies, including loop tuning and advanced control approaches where appropriate.
  • Support HAZOPs, operability studies, and control system design reviews.
  • Review engineering deliverables for technical accuracy, completeness, and consistency.
  • Coordinate with cross-functional teams to ensure integrated process and control system design.

REQUIRED QUALIFICATIONS
  • Bachelor's degree in chemical engineering or related discipline from an ABET-accredited program.
  • Minimum of 8 years of process engineering experience, including substantial involvement in instrumentation and controls.
  • Demonstrated ability to integrate process design with control system implementation.
  • Experience developing P&IDs with comprehensive instrumentation scope and control intent.
  • Working knowledge of process control principles, system dynamics, and loop tuning.
  • Familiarity with PLC/PCS systems, control logic development, and industrial automation architectures.
  • Experience with ChemCad, AFT Fathom, and AFT Arrow for process and hydraulic modeling.
  • Professional Engineer (PE) license in Tennessee and/or South Carolina.
  • U.S. Citizenship required for project work.

DESIRED QUALIFICATIONS
  • Experience with Department of Energy (DOE) nuclear projects.
  • Familiarity with ISA standards and nuclear I&C design requirements.

#LI-Hybrid
PERKS
  • Employee Owned - all eligible U.S. employees have an Employee Stock Ownership Account.
  • Robust Employee Referral Program.
  • Annual performance and compensation reviews.
  • Professional Training and Development.
  • Employee Recognition Awards.
  • Peer Mentor Program
  • And Much More!

ADDITIONAL INFORMATION
  • Apply online only. No e-mail, hard copy or third-party resumes accepted.
  • At Merrick, every resume is carefully reviewed by our team of experienced human recruiters-never by AI. We are committed to a fully human-centered hiring process, ensuring each candidate receives thoughtful, personalized attention at every stage.
  • Merrick & Company offers a competitive compensation and benefits package which includes health insurance, dental and vision coverage, 401(k), and paid time off (PTO).
  • Merrick is an Equal Opportunity Employer, including disability/vets.
  • Employment with Merrick is contingent upon completion of a pre-employment background check, MVR check, and drug screen.

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