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Refinery Process Engineer Jobs in Texas (NOW HIRING)

Mariana Minerals

Staff Process Engineer

Houston, TX · On-site

$140K - $175K/yr

You will help design, deploy, and operate first-of-its-kind refining processes for critical ... You will work closely with technicians, engineers, and cross-functional teams to ensure processes ...

Equinox Engineering

$98K - $128K/yr

Refinery process systems About You You are an experienced engineer who thrives in a technical leadership role that enjoys working on multidisciplinary projects. You bring: * Bachelor's degree in ...

Hawk Group

Process Engineer

Spring, TX · On-site

$100/hr

Experience in petroleum refining / chemical process industry / with an engineering contractor serving these industries * Capital project development experience * Familiarity with heat and material ...

EnergyX

Process Engineer

Austin, TX · On-site

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

The Process Engineer will translate EnergyX's separation advances into technologies such as ... Understanding of techniques applicable for lithium extraction, separation, recovery, and refining.

SolarEdge

Process Engineer

Austin, TX · On-site

Develop, document, and continuously refine PCB fabrication and printed circuit board assembly ... process engineering in a high-volume production environment. * SMT Process Knowledge: Strong ...

Koch Industries

Senior Process Engineer

Katy, TX · On-site

$95K - $123K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Basic & detailed design engineering activities for the assigned project in refineries and gas ... Process engineering experience in midstream or downstream oil and gas industries. * Working ...

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All JobsRefinery Process Engineer JobsRefinery Process Engineer Jobs in Texas

Refinery Process Engineer information

See Texas salary details

$66.6K

$128K

$217.1K

How much do refinery process engineer jobs pay per year?

As of Aug 17, 2026, the average yearly pay for refinery process engineer in Texas is $127,995.00, according to ZipRecruiter salary data. Most workers in this role earn between $94,600.00 and $137,400.00 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 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.

What are the key skills and qualifications needed to thrive as a refinery process engineer, 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.

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Refinery Process Engineer jobs near you
Infographic showing various Refinery Process Engineer job openings in Texas as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 14% Part Time, 2% Contract, and 1% Nights. Highlights an 91% Physical, 3% Hybrid, and 6% Remote job distribution, with an average salary of $127,995 per year, or $61.5 per hour.

Staff Process Engineer

Mariana Minerals

Houston, TX • On-site

$140K - $175K/yr

Full-time

Re-posted 25 days ago

Job description

About Mariana Minerals
Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We're reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making.
The Role
Mariana Minerals is seeking a highly motivated Process Engineer to support our next-generation minerals processing pilot plant in Houston. You will help design, deploy, and operate first-of-its-kind refining processes for critical minerals. This role is highly hands-on and will play a key role in bridging R&D and plant operations, helping scale technologies from laboratory development through pilot demonstration and ultimately to commercial production. You will work closely with technicians, engineers, and cross-functional teams to ensure processes are robust, safe, and ready for industrial deployment.
What You'll Do
  • Lead equipment and process design from concept through procurement, fabrication, installation, commissioning, and startup
  • Operate, troubleshoot, and improve pilot-scale processing equipment in collaboration with pilot plant technicians
  • Design and execute pilot-scale experiments to evaluate process performance, recovery, throughput, and product quality
  • Develop and maintain key process documentation including PFDs, P&IDs, mass and heat balances, operating procedures, and control narratives
  • Analyze experimental and operational data to identify opportunities for process optimization and scale-up
  • Support development of automated plant monitoring and optimization tools in collaboration with software and machine learning teams
  • Ensure safe operations by supporting EHS, hazard assessments, risk management, and management of change processes
What You'll Bring
  • B.S., M.S., or PhD in Chemical Engineering or a related field
  • 10+ years of experience in operations, process scale-up, or plant design in minerals processing, chemicals, specialty materials, oil & gas, or related industries
  • Demonstrated experience driving equipment design, commissioning, and plant operation
  • Strong understanding of relevant unit operations and equipment such as kilns, furnaces, ion exchange, solvent extraction, solid liquid separation, leaching, electrowinning, or similar technologies
  • Ability to design experiments, troubleshoot complex processes, and analyze operational datasets
  • Strong commitment to Health, Safety, and Environmental compliance
  • Excellent technical writing, communication, and teamwork skills
  • Comfortable working in fast-paced environments, wearing multiple hats, and managing ambiguity
Our culture is built on three principles:
Extreme Ownership - We take full responsibility for outcomes, relentlessly driving toward solutions.
Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale.
Share Your Legos - We collaborate openly, share knowledge, and empower each other to build bigger, better solutions.
Join us as we build the future of responsible mineral sourcing and supply.

Apply