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Thermal Process Operator Jobs in Houston, TX (NOW HIRING)

Lunar Resources

Hydrogen Furnace Operator

Houston, TX · On-site

$16.25 - $20/hr

Hydrogen Furnace Operator Department: Manufacturing / Production Employment Type: Full-Time ... They are precision thermal processes that determine whether a hermetically sealed assembly performs ...

Lunar Resources

Hydrogen Furnace Operator

Houston, TX

$16.25 - $20/hr

Hydrogen Furnace Operator Department: Manufacturing / Production Employment Type: Full-Time ... They are precision thermal processes that determine whether a hermetically sealed assembly performs ...

Lunar Resources

Hydrogen Furnace Operator

Houston, TX · On-site

$16.25 - $20/hr

Hydrogen Furnace Operator Department: Manufacturing / Production Employment Type: Full-Time ... They are precision thermal processes that determine whether a hermetically sealed assembly performs ...

AAA USA

Thermal Spray Operator

Houston, TX · On-site

$33 - $52/hr

Experience with HVOF, Plasma Spray, APS (Atmospheric Plasma Spray), Thermal Barrier Coatings (TBC), or other industrial coating processes preferred. * Experience operating or programming industrial ...

AAA USA

Thermal Spray Operator

Houston, TX · On-site

$33 - $52/hr

Experience with HVOF, Plasma Spray, APS (Atmospheric Plasma Spray), Thermal Barrier Coatings (TBC), or other industrial coating processes preferred. * Experience operating or programming industrial ...

Kymera International

Thermal Spray Technician

Houston, TX · On-site

$15 - $19/hr

... process specifications. * Exposure to quality assurance practices and basic troubleshooting in a production environment. * Proficient in operating and adjusting thermal spray equipment and ...

Kymera International

Thermal Spray Technician

Houston, TX · On-site

$15 - $19/hr

... process specifications. * Exposure to quality assurance practices and basic troubleshooting in a production environment. * Proficient in operating and adjusting thermal spray equipment and ...

Airswift

Lead Thermal Fluid Hydraulics Engineer

Houston, TX · On-site

$97K - $128K/yr

This role will help establish discipline-specific standards, processes, tools, and technical ... and operating decisions. • Fluid Dynamics - Evaluate internal and external flow behavior ...

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All JobsThermal Process Operator JobsThermal Process Operator Jobs in Houston, TX

Thermal Process Operator information

See Houston, TX salary details

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$20

$29

How much do thermal process operator jobs pay per hour?

As of Sep 12, 2026, the average hourly pay for thermal process operator in Houston, TX is $20.19, according to ZipRecruiter salary data. Most workers in this role earn between $17.45 and $22.02 per hour, depending on experience, location, and employer.

Sr./Staff Pyrometallurgical Process Engineer

Houston, TX • On-site

Mariana Minerals
See more jobs at Mariana Mineralsexternal

$99K - $128K/yr

Full-time

Posted 3 days ago

New

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 looking for a highly motivated Pyrometallurgical Process Engineer to help build the critical minerals supply chain supporting the world's energy transition.
As a Pyrometallurgical Process Engineer at Mariana Minerals, you will lead the development and deployment of first-of-its-kind high-temperature refining and thermal processing systems. You will play a central role in designing, modeling, scaling, and commissioning pyrometallurgical unit operations, while supporting development of software tools for capital project execution and automated plant optimization.
Responsibilities include leading equipment and process scopes from concept and modeling validation through detailed engineering, installation, commissioning, ramp-up, and handover to operations.
What You'll Do
  • Lead pyrometallurgical process scopes from early concept development and thermodynamic modeling through procurement, detailed engineering, fabrication, installation, commissioning, and ramp-up
  • Develop detailed heat and material balances for high-temperature process trains, including drying, calcination, roasting, reduction, smelting, converting, slag cleaning, refining, and off-gas treatment
  • Design and validate thermal process flowsheets and PFDs/P&IDs for pyrometallurgical circuits, ensuring safety, reliability, and scalability
  • Build first-principles thermodynamic and kinetic models for high-temperature reactors and furnaces (e.g., rotary kilns, calciners, electric arc furnaces, submerged arc furnaces, reverberatory furnaces, flash smelters) to support scale-up and commercial deployment
  • Model and optimize phase equilibria, slag chemistry, metal recovery, refractory performance, and energy efficiency
  • Define specifications and operating envelopes for high-temperature process equipment, burners, power systems, refractory linings, and gas-handling systems
  • Identify, evaluate, and implement process improvements to maximize metal recovery, minimize energy consumption, control emissions, and ensure stable furnace operation under varying feedstock chemistries
  • Collaborate closely with R&D, lab teams, and pilot-plant engineers to translate bench- and pilot-scale findings into robust commercial pyrometallurgical designs
  • Work with environmental and controls teams to design and optimize off-gas handling systems (e.g., cyclones, baghouses, scrubbers, thermal oxidizers, heat-recovery systems)
  • Partner with software and machine-learning teams to automate process-engineering workflows and develop advanced control, optimization, and digital-twin models for high-temperature reactors and furnaces

What You'll Bring
  • Strong understanding of engineering fundamentals and demonstrated ability to leverage the understanding to solve challenging problems
  • Strong foundation in chemical engineering, metallurgical engineering, or process engineering, with demonstrated ability to apply engineering fundamentals to complex pyrometallurgical systems
  • Experience with equipment engineering and design. Including but not limited to:
  • Brownfield modifications and upgrades of process equipment (e.g., leach tanks, reactors, filtration systems, solvent extraction circuits)
  • Greenfield design of hydrometallurgical unit operations and integrated circuits
  • Troubleshooting, evaluation, and optimization of operating pyrometallurgical or chemical-process equipment
  • Experience with the following industries and/or production environments:
  • Pyrometallurgical mineral processing or metal refining
  • Large-scale mining, critical-minerals processing, or battery-materials production
  • Industrial chemical manufacturing with complex aqueous/chemical reaction systems
  • Engineering, procurement, and construction (EPC/EPCM) firms supporting mining and mineral processing industry projects
Our culture is built on four principles:
Everyone Gets Home Safe. We never put speed or cost ahead of people.
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!

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