Process Modeling Engineer
Mariana MineralsCritical Minerals company
San Francisco, United StatesMid
Andreessen Horowitz
Breakthrough Energy Ventures
Khosla Ventures
Earthshot Ventures
Pax VC
About the role
TL;DR
Develop and optimize mineral refining processes using advanced process simulation tools.
- •Mariana Minerals is seeking a Process Modeling Engineer to develop next-generation refining processes for critical minerals.
- •Key Responsibilities Develop steady-state and dynamic process models using ASPEN, SysCAD, OLI, or METSIM.
- •Automate equipment and process sizing based on model outputs.
- •Calibrate and reconcile models using pilot or plant operating data.
- •Conduct process optimization studies evaluating energy/heat recovery and material efficiency improvements.
- •Link process models to CAPEX and OPEX estimation tools.
- •Requirements Bachelor's degree in Chemical Engineering, Mechanical Engineering, Process Engineering, Metallurgical Engineering, or a related discipline.
- •Proficiency in ASPEN Plus / HYSYS, SysCAD, OLI Studio / OLI Flowsheet, or METSIM.
- •Experience developing material and energy balances for multi-step, integrated process systems.
- •Strong grasp of chemical equilibria and phase behavior in aqueous and non-aqueous systems.
- •Familiarity with data reconciliation, parameter fitting, and model validation using experimental or operational data.
- •Competency with Python or MATLAB for model automation, data processing, and custom calculations.
Required skills
Python
Domain expertise
cleantech
Tech stack
Python