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
Join our analytical lab at Copper One as an Associate Analytical Chemist. You’ll run sample prep and analytical testing on state-of-the-art equipment in a newly renovated lab, keep data accurate and instruments performing at their best, and dig into problems that don’t come with a textbook answer, like an unknown sample straight from the plant. Found on 1752vc Careers, the job board for startup and VC roles.
What they're looking for
- Bachelor’s degree in Chemistry, Chemical Engineering, or a related field (2024–2026 graduates welcome)
- Hands-on lab experience through undergraduate research, internships, co-ops, or work
- Solid wet chemistry skills, including acid digestion and preparing standards
- Experience with ICP-OES/MS, XRF, AA, GC, HPLC, or UV-Vis, whether in research or coursework
- A troubleshooter who likes figuring out why an instrument or result isn’t right
- Familiarity with EPA, ISO, or GLP/GMP standards a plus
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.
Join our analytical lab at Copper One as an Associate Analytical Chemist. You’ll run sample prep and analytical testing on state-of-the-art equipment in a newly renovated lab, keep data accurate and instruments performing at their best, and dig into problems that don’t come with a textbook answer, like an unknown sample straight from the plant. You’ll work closely with our lab technicians and learn alongside an analytical team that supports labs across multiple sites, with room to grow into owning the lab or a regional or global role as we expand. Recent graduates in Chemistry or Chemical Engineering are encouraged to apply.
Perform precise sample preparation across various matrices, including weighing, digestion, dilution, and filtration
Prepare standards and calibration solutions
Operate, calibrate, and troubleshoot analytical equipment, including ICP-OES,...
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