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Process Engineer

Mariana Minerals· Plant Operations
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East TexasFull-timePosted 2mo ago

About the role

Senior Process Engineer responsible for liaising between R&D and operations, focused on chemical process development, scale-up, and sustaining technology-manufacturing readiness in a minerals processing context.

Responsibilities

  • Lead the development and scale-up of lab processes on pilot and production scales, with a focus on improving metal recovery and reducing cost and environmental impact.
  • Identify potential process risks, and propose, and evaluate solutions to mitigate the risks.
  • Evaluate process capability, improve process control, and deliver samples to customers.
  • Conduct detailed process simulations and modeling to predict process behaviors under various scenarios.
  • Develop, prepare, and provide detailed production and process guidelines, including: standard operating procedures (SOPs), process flow details, safety, and quality standards.
  • Improve and troubleshoot products, equipment, and process issues during production.
  • Provide technical leadership and mentorship to junior scientists, engineers, and technical staff.
  • Guide the R&D team and any external partners in the design and execution of experiments to develop the required base data for chemical process design.
  • Drive chemical process design and development from the concept stages to scaled production, ensuring quality is maintained throughout the lifecycle of the project.
  • Develop and model potential process designs for scale-up and cost estimating based on lab-scale chemical processes.
  • Identify potential process risks, and propose, and evaluate solutions to mitigate the risks.
  • Evaluate process capability and improve process control.

Qualifications

  • A bachelor’s degree in chemical engineering or a related discipline is required.
  • 3-5 years of experience in Chemical Process and/or Development Engineering required.
  • Hands-on experience scaling processes from R&D to an operating environment.
  • Expertise in process modeling, development, control, and scale-up.
  • Coordinate and execute bench-top, pilot, manufacturing scale-up, and verification batches with speed and robustness.
  • Proficient in using software for process analysis and modeling.
  • Sound understanding of chemical processes and their scale-up.
  • Strong leadership and interpersonal skills for implementation of cross-functional process improvements.
  • Strong background in analytical & quantitative skills for problem-solving of large/complex problems & proven ability in decision-making

Skills

Required:Chemical engineeringProcess modeling and simulationScale-up from R&D to productionProcess control and optimizationLeadership and mentorship

Benefits

  • Not specified in the provided description.
Last updated Sep 9, 2026. Interested? Apply on the company site.

About Mariana Minerals

We to the Future of Minerals, verify the mineral supply chain.

Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying the minerals critical to modern energy, AI, and defense technologies.

software-firstmineralsenergyAIdefense
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