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Mariana MineralsMariana MineralsSan Francisco, CA

Materials Engineer

Designs and scales novel material synthesis processes from laboratory proof of concept through pilot and commercial production. The role requires a master's degree in a relevant engineering or chemistry discipline, hands-on synthesis and characterization experience, and expertise in process design and scale-up.

100k – 140k/yr
On-siteHardware Engineering

About the role

Responsibilities

  • Conduct lab-scale and pilot-scale wet chemical synthesis experiments to validate proof-of-concept ideas and develop new material formulations.
  • Design and execute experiments to establish reaction parameters, optimize yield, and ensure reproducibility.
  • Evaluate and select equipment and process configurations for pilot-scale and commercial-scale operations.
  • Develop process flow diagrams (PFDs), process and instrumentation diagrams (P&IDs), and mass and energy balances.
  • Collaborate with R&D scientists, operations teams, and external vendors to support scale-up.
  • Support process safety reviews, risk assessments, and environmental compliance planning.
  • Collect and analyze process data to identify opportunities for optimization, cost reduction, and performance improvement.
  • Prepare technical documentation, reports, and presentations for internal and external stakeholders.
  • Work with lab technicians, pilot plant engineers, process engineers, and project execution teams to scale designs from laboratory through commercial production.
  • Collaborate with software and machine learning teams to automate capital project execution workflows and develop reactor and plant optimization algorithms.

Requirements

  • Master's degree in Materials Science, Chemistry, Materials Engineering, or Chemical Engineering; PhD preferred.
  • Hands-on experience in materials synthesis, including solid-state, hydrothermal, precipitation, or other chemical synthesis techniques.
  • Proficiency with materials characterization tools such as XRD, SEM, TEM, BET, TGA/DSC, and spectroscopic methods.
  • Experience with process design, equipment specification, and scaling laboratory processes to pilot or production scale.
  • Strong analytical and problem-solving skills with a data-driven approach.
  • Excellent communication and teamwork skills in a multidisciplinary environment.

Nice to Have

  • Familiarity with process simulation tools such as OLI Systems or equivalent.

Compensation

  • Annual salary range: $100,000–$140,000.

Skills

materials sciencematerials synthesischemical engineeringxrdsemtembettga/dscProcess Designprocess scale-upprocess simulationmass balancesenergy balancesMachine Learning

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