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Minerals Processing Engineer Jobs in Texas (NOW HIRING)

Mariana Minerals

Staff Process Engineer

Houston, TX · On-site

$140K - $175K/yr

... 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 ...

Mariana Minerals

Staff Mechanical Engineer

Houston, TX · On-site

$140K - $175K/yr

The Role Mariana Minerals is seeking a highly motivated Staff Mechanical Engineer to support our next-generation minerals processing pilot plant in Houston. You will lead the design, integration, and ...

Mariana Minerals

Head of Engineering Programs

Houston, TX · On-site

$180K - $240K/yr

Bachelor's degree in Engineering or a related technical field * 10+ years of experience leading program or project management for large, complex capital projects in mining, minerals processing ...

Mariana Minerals

Process Safety Engineer

Houston, TX · On-site

The Role Mariana Minerals is seeking a Process Safety Management (PSM) Engineer to help build, administer, and continuously improve the company's process safety and major hazard risk management ...

Mariana Minerals

Structural Designer

Houston, TX · On-site

Experience in industrial, mining, minerals processing, chemical, or heavy-industrial environments ... Engineer Out Requirements, then Automate - We simplify, optimize, and then automate for scale.

Mariana Minerals

Sr. Electrical Engineer

Houston, TX · On-site

$140K - $210K/yr

Industrial manufacturing, Large-scale mining or mineral processing, Large-scale chemical production processes and Engineering, procurement, and construction firms Our culture is built on three ...

Mariana Minerals

Sr. Data Engineer

Houston, TX · On-site

$101K - $137K/yr

Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying ... directly with process engineers, ML engineers, and operations teams. Preferred : • Bonus ...

Mariana Minerals

Sr. Estimator

Houston, TX · On-site

... mining and mineral processing projects. This role is responsible for developing accurate ... Collaborate with engineering, procurement, and project management teams to ensure accurate and ...

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All JobsMinerals Processing Engineer JobsMinerals Processing Engineer Jobs in Texas

Minerals Processing Engineer information

See Texas salary details

$55.9K

$81.7K

$109.9K

How much do minerals processing engineer jobs pay per year?

As of Aug 21, 2026, the average yearly pay for minerals processing engineer in Texas is $81,742.00, according to ZipRecruiter salary data. Most workers in this role earn between $62,400.00 and $99,200.00 per year, depending on experience, location, and employer.

What does a minerals processing engineer do?

A Minerals Processing Engineer is responsible for designing, developing, and optimizing processes to extract valuable minerals from ores efficiently and sustainably. They work with various techniques such as crushing, grinding, flotation, and leaching to separate and refine raw materials. These engineers collaborate with geologists, metallurgists, and plant operators to improve plant performance, reduce waste, and enhance environmental sustainability. Their role is vital in the mining industry, ensuring that resources are processed safely and cost-effectively for further use in manufacturing and industries.

What are the key skills and qualifications needed to thrive as a minerals processing engineer?

A Minerals Processing Engineer should have a solid background in chemical or metallurgical engineering, mineralogy, and process optimization, usually supported by a relevant engineering degree. Familiarity with simulation software, process control systems, and adherence to industry safety certifications like MSHA are commonly required. Strong analytical thinking, problem-solving abilities, and clear communication help facilitate effective teamwork and troubleshooting. These competencies ensure safe, efficient, and cost-effective mineral extraction and processing in dynamic industrial environments.

What are the most commonly searched types of Minerals Processing Engineer jobs in Texas?

The most popular types of Minerals Processing Engineer jobs in Texas are:

What are popular job titles related to Minerals Processing Engineer jobs in Texas?

For Minerals Processing Engineer jobs in Texas, the most frequently searched job titles are:

What job categories do people searching Minerals Processing Engineer jobs in Texas look for?

The top searched job categories for Minerals Processing Engineer jobs in Texas are:

Minerals Processing Engineer jobs near you
Infographic showing various Minerals Processing Engineer job openings in Texas as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 13% Part Time, 1% Temporary, 2% Contract, and 1% Nights. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution, with an average salary of $81,742 per year, or $39.3 per hour.

Staff Process Engineer

Mariana Minerals

Houston, TX • On-site

$140K - $175K/yr

Full-time

Re-posted 29 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:
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!

Apply