Lead Resource Geologist

Mariana MineralsHouston, TX

On-site Full-time

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Experience Level

Manager

Qualifications

The ideal candidate will possess a strong background in geology with a focus on resource evaluation. A Master’s degree in Geology or a related field is highly preferred. Significant experience in geological modeling software and data analysis is essential. Excellent leadership and communication skills are required to manage teams effectively and collaborate with cross-functional departments.

About the job

Join Mariana Minerals as a Lead Resource Geologist where you will play a pivotal role in guiding our geological projects. In this leadership position, you will oversee resource estimation, geological modeling, and project management, ensuring the highest standards of quality and accuracy. Your expertise will be crucial in advancing our exploration initiatives and facilitating strategic decision-making.

About Mariana Minerals

Mariana Minerals is a leading player in the mining industry, dedicated to sustainable practices and innovative exploration techniques. Our mission is to discover and develop mineral resources responsibly while contributing to the communities we operate in. Join us and be part of a team that values integrity, excellence, and environmental stewardship.

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Mining Engineering Internship at Mariana Minerals | Houston, TX

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About Mariana Minerals Mariana Minerals combines deep industry expertise with software and automation to reshape how essential minerals reach sectors like energy, artificial intelligence, and defense. The company focuses on data-driven strategies to improve the minerals supply chain. Mining Engineering Internship Overview This Houston-based internship places…

Apr 14, 2026

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Chemical Engineering Intern at Mariana Minerals | Houston, TX

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Intern|On-site|Houston, TX

About Mariana Minerals Mariana Minerals is building the future of minerals with a software-driven approach. The team delivers essential minerals that support energy, artificial intelligence, and defense technologies. By combining industry experience with software, automation, and data-focused methods, Mariana Minerals is changing how the minerals supply chain operates. Internship Overview The Chemical Engineering Intern will join the Process & Plant Engineering team in Houston, TX. This internship centers on meaningful, hands-on work supporting the LithiumOne project. Interns collaborate with seasoned engineers and industry experts, contributing directly to project outcomes rather than only performing support tasks. Key Responsibilities Assist in developing and refining process flow diagrams (PFDs) and piping & instrumentation diagrams (P&IDs) for lithium brine extraction and purification. Help conduct mass and energy balance modeling for core unit operations such as evaporation, impurity removal, and lithium product conversion. Perform literature reviews and interact with vendors to evaluate reagent choices, membrane technologies, and downstream processing options. Support the preparation of engineering documents for feasibility and prefeasibility studies, including equipment sizing and capital cost estimates. Assist in analyzing lab or pilot-scale test data to validate process assumptions and improve flowsheet design. Desired Qualifications Current enrollment in a B.S. or M.S. Chemical Engineering program, with coursework in thermodynamics, mass transfer, and reaction engineering. Familiarity with process simulation tools (such as METSIM, Aspen, or similar) is a plus. Strong analytical skills and technical writing ability, with experience synthesizing data into clear engineering summaries. Interest in hydrometallurgy, critical minerals, or battery materials supply chains is preferred.

Apr 14, 2026

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Mechanical Engineering Intern at Mariana Minerals | Houston, TX

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Internship|On-site|Houston, TX

About Mariana Minerals Mariana Minerals is a minerals company focused on software-driven innovation. The team supplies critical minerals used in energy, artificial intelligence, and defense applications. By combining industry experience with automation and data-driven strategies, Mariana Minerals is reshaping the minerals supply chain. Internship Overview The Mechanical Engineering Intern joins the Process & Plant Engineering group in Houston, TX. This role centers on hands-on work supporting the Deep Sea Nodule Refining Pilot Plant. Interns work alongside engineers and technical experts, contributing directly to engineering solutions rather than only assisting with routine tasks. Key Responsibilities Assist with mechanical design and equipment specification for a multi-metal pyrometallurgical and hydrometallurgical pilot plant. Equipment includes vessels, pumps, heat exchangers, and material handling systems. Help prepare equipment datasheets, procurement packages, and review vendor drawings. Take part in on-site installation activities, such as layout coordination, alignment checks, and collaborating with fabrication and construction contractors. Join commissioning efforts, including pre-commissioning inspections, punch list management, and testing of mechanical systems. Keep documentation organized for as-built conditions, equipment records, and commissioning logs.

Apr 14, 2026

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Full-time|On-site|Houston, TX

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Apr 24, 2026

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Mar 24, 2026

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Field Engineering Intern

Mariana Minerals

Internship|On-site|Houston, TX

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Apr 14, 2026

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Staff Mechanical Engineer

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Full-time|On-site|Houston, TX

Join our team at Mariana Minerals as a Staff Mechanical Engineer. In this role, you will leverage your expertise in mechanical engineering to drive innovative solutions in mineral processing and contribute to our mission of sustainable resource extraction. You will collaborate closely with cross-functional teams to design, develop, and implement cutting-edge engineering solutions that enhance operational efficiency and effectiveness.

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Mar 24, 2026

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Lead Resource Geologist

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Join Mariana Minerals as a Lead Resource Geologist where you will play a pivotal role in guiding our geological projects. In this leadership position, you will oversee resource estimation, geological modeling, and project management, ensuring the highest standards of quality and accuracy. Your expertise will be crucial in advancing our exploration initiatives and facilitating strategic decision-making.

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