JOBSEARCHER

Senior Scientist

Cgp SearchSonoma, CAJune 7th, 2026
Our client, a biomining startup focused on increasing copper recovery from low-grade sulfide ores via chemical additives. Is in search of a Geochemist SME to join the team in greater Bay Area, CA.This Role will own mineral geochemistry workflows for copper/iron/sulfur systems, help run lab-to-pilot-scale column/heap experiments and modelling, and support delivering time-sensitive pilot deliverables with external partners.First 3 months:Complete geochemical characterization for at least two ore types; finish small-scale high-throughput screening of current pilot project sample6 months:Scale from high-throughput screening system successfully leads to lab-scale experiments12 monthsSuccessful transfer to pilot scale (larger lab metallurgical columns) with a partnerRESPONSIBILITIESLead mineral geochemistry characterization of real-world ore samples across lab?pilot scalesSpecialize in (Cu-Fe-S) with particular focus on speciationSupport with running high-throughput screening and lab column experiments; operate across lab and pilot setupsGeochemical data analysis and modelling (translate results into process parameters)Liaise with cross-disciplinary internal team (biology, chemistry, process engineers) and external partners/clients; deliver projects on timeOwn hands-on lab execution with autonomy; prepare materials for pilots and field transferDevelop and apply a broad range of advanced analytical techniques (including ICP-OES, ion chromatography, microwave digestion, etc.)Interact directly with external partners, hydrometallurgy experts, and pilot clientsDeliver projects on time in an industrial settingMUST HAVE EXPERIENCEPhD + 2 years of industry experience or MS + 6 years of industry experience.Minimum 2 years delivering projects in an industrial/delivery setting (real world industry experience vs purely academic environments)real-worldDemonstrable mineral geochemistry expertise (geology/ores/mining focus) — non-planetary geochemistry emphasisTechnical depth in copper/iron/sulfur systems; sulfur speciation knowledge requiredExperience with advanced analytical techniques (ICP, ion chromatography, microwave digestion, speciation analysis, etc.)Proficiency with geochemical modelling software (Geochemist's Workbench)Strong cross-disciplinary communication; hands-on, proactive, able to operate autonomously in a small teamAbility to work full-time onsite.