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Mariana Minerals is a software-first, vertically integrated minerals company supplying critical minerals for modern energy, AI, and defense technologies. They are reimagining the minerals supply chain through deep industry expertise, advanced software, automation, and data-driven decision-making.
You will join the Analytical Group as an Analytical Systems Specialist / Applications Chemist—the person sent when a lab needs expert help. This is a cross-site role based in San Francisco or Houston with approximately 50% travel within the US (up to 75% at times). You'll travel to Mariana Minerals lab sites to troubleshoot and resolve issues with analytical techniques, instruments, data quality, and method performance. You'll help bring new lab systems online and integrated at new sites, starting with the Lithium One facility, and train the teams who run them.
Key responsibilities include:
- Travel to lab sites to troubleshoot analytical techniques, instruments, data quality and method performance
- Bring new lab systems online and integrated at new sites
- Implement, program and maintain analytical instrumentation including IC, ICP-OES, ICP-MS, XRF and AA
- Develop, validate and standardize analytical methods and workflows across sites
- Train lab personnel on instrumentation, analytical techniques and best practices
- Evaluate new technologies and recommend improvements to existing systems
- Maintain documentation for methods, SOPs and internal technical guidance
- Work with cross-functional teams to improve analytical efficiency and data reliability
Between assignments, you'll work out of the lab closest to you. This is a full-time, salaried role reporting to the analytical lead. You'll learn how instruments work, how to fix them, and how to program them. Recent graduates in analytical chemistry are encouraged to apply.
QUALIFICATIONS & REQUIREMENTS:
- Bachelor's degree in Chemistry, Analytical Chemistry or a related field (recent graduates welcome)
- Hands-on experience through research, internships or work with IC, ICP-OES, ICP-MS, XRF, AA or similar instrumentation
- Strong understanding of analytical techniques, sample preparation and data interpretation
- Mechanical aptitude and comfort with tools, instrument components and basic diagnostic equipment (e.g., multimeters)
- Enjoys figuring out why an instrument or result isn't right
- Able to clearly train and support teams at different sites
- Able to work independently on the road and collaboratively with each lab team
- Authorized to work in the US without sponsorship
- Regular work with chemicals and lab instrumentation; standard lab PPE required
- Able to lift up to 25 lbs
PREFERRED:
- Method development, validation or optimization experience
- Familiarity with instrument hardware (plasma systems, optics, vacuum systems, fluidics)
