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Process Engineer

Mariana Minerals · East Texas · On-site

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About Mariana Minerals

Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying the minerals critical to modern energy, AI, and defense technologies. Backed by Khosla and a16z.

About the role

We are looking for a Senior Process Engineer to work with our innovative, fast-paced multidisciplinary team. They will be responsible for liaising between R&D and operations, with a focus on chemical process development, successful scale-up of new product execution, and sustaining technology-manufacturing readiness. This person must be flexible, proactive, and professional with experience in scale-up and process development applications such as chemical refining, hydrometallurgy, minerals, and chemical processing.

What they're looking for

  • 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
More about this role

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.

We are looking for a Senior Process Engineer to work with our innovative, fast-paced multidisciplinary team. They will be responsible for liaising between R&D and operations, with a focus on chemical process development, successful scale-up of new product execution, and sustaining technology-manufacturing readiness. This person must be flexible, proactive, and professional with experience in scale-up and process development applications such as chemical refining, hydrometallurgy, minerals, and chemical processing.

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...

Read the full posting on Mariana Minerals's site ↗

Plant Operations

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