About Mariana Minerals
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 how minerals are sourced, refined, and optimized by combining deep industrial expertise with software, automation, and data-driven decision-making. Join us as we build the future of responsible mineral sourcing and supply.
Role Overview
This is an internal, cross-site role focused on supporting and advancing analytical capabilities across multiple company locations.
The position centers on method development, troubleshooting analytical methodologies, and implementing new instrumentation and procedures. The ideal candidate will combine strong analytical expertise with hands-on mechanical aptitude and the ability to work across diverse lab environments.
What You’ll Do
Support and optimize analytical methodologies across multiple Mariana Minerals laboratory sites
Troubleshoot and resolve issues related to analytical techniques, data quality, and method performance
Lead and support implementation of new instrumentation (e.g., ICP-OES, ICP-MS, Atomic Absorption, or similar systems)
Develop, validate, and standardize analytical methods and workflows
Train laboratory personnel on instrumentation, analytical techniques, and best practices
Collaborate with cross-functional teams to improve analytical efficiency and data reliability
Assist in evaluating new technologies and recommending improvements to existing systems
Maintain documentation for methods, SOPs, and internal technical guidance
Provide internal technical support for complex analytical challenges
What You’ll Bring
Bachelor’s degree in Analytical Chemistry, Chemistry, or a related scientific discipline (recent graduates encouraged to apply)
Hands-on experience (academic, internship, or research) with ICP-OES, ICP-MS, Atomic Absorption, or similar analytical instrumentation preferred
Strong understanding of analytical techniques, sample preparation, and data interpretation
Mechanical aptitude and comfort working with tools, instrumentation components, and basic diagnostics equipment (e.g., multimeters/voltmeters)
Strong problem-solving and troubleshooting skills
Excellent communication skills with the ability to train and support internal teams
Ability to work both independently and collaboratively across multiple sites
Travel Requirements
Up to 75% travel, primarily within the continental United States
Occasional international travel may be required
At Mariana Minerals, you’ll be part of a mission-driven team reshaping the way critical minerals are sourced and supplied globally. You’ll have the autonomy to make big decisions, the tools to innovate, and a culture that values ownership, smart automation, and collaboration.
Extreme Ownership – We take full responsibility for outcomes, relentlessly driving toward solutions.
Engineer Out Requirements, then Automate – We simplify, optimize, and then automate for scale.
Share Your Legos – We collaborate openly, share knowledge, and empower each other to build bigger, better solutions.
Join us as we build the future of responsible mineral sourcing and supply.
Mariana is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected status.
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