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Reactive Transport Modeler – Geochemistry in Deep Mining Startup

Confidential company · Munich · Posted Sep 28, 2026

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Public summary

Join a Munich-based deep-tech startup focused on ultra-deep drilling technologies to advance critical resource extraction. The role involves building and calibrating geochemical and reactive-transport models for innovative in-situ recovery mining processes, working at the interface of geochemistry, hydrogeology, and chemical engineering within an energetic and mission-driven team.

Location and work setup

Location
Munich
Remote status
On-site
German requirement signal
Unclear
Detected job language
English

Responsibilities

Develop geochemical characterisation of ore and formation water; design and evaluate leaching chemistries; create and calibrate coupled flow-chemistry reactive-transport models to forecast recovery and reagent demand; specify and interpret laboratory leach experiments; predict and mitigate formation damage and scaling; model environmental geochemistry for permitting and restoration; interface with process teams; prepare geochemical sections of environmental permits.

Qualifications

PhD or MSc in geochemistry, hydrogeochemistry, chemical engineering, environmental sciences or related field; 3+ years of applied experience in geochemical or reactive-transport modelling; expert in PHREEQC and at least one coupled reactive-transport modeling software; strong background in aqueous geochemistry, mineral kinetics, redox and sorption processes; experience with experimental leach testing; ability to assess thermodynamic data and model uncertainties; fluent in English; willingness to relocate to Munich. Preferred: experience in ISR/ISL or hydrometallurgy, high-temp or high-salinity modeling, radionuclide transport, ion exchange/solvent extraction processes, scripting and automation, German language skills.

Skills

Reactive-transport modelling Geochemical characterisation PHREEQC PHT3D TOUGHREACT CrunchFlow Mineral dissolution/precipitation kinetics Redox processes Sorption processes Leach test design and interpretation Thermodynamic database assessment Environmental geochemistry Model automation (Python, PhreeqPy, PEST) Fluent English