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
Mariana Minerals is hiring a Senior Environmental Engineer to provide technical environmental engineering support across our U.S. mining, processing, and refining project sites in a fast-paced, multi-project environment.
What they're looking for
- Bachelor's or master's degree in Environmental Engineering, Civil/Environmental Engineering, Environmental Science, or a related field
- 5+ years of environmental engineering experience in mining, energy, or large infrastructure, with a demonstrated ability to work effectively in a fast-paced, multi-project environment
- Working technical knowledge of environmental studies and modeling (air, water, stormwater) and monitoring program design
- Familiarity with U.S. environmental regulations (CAA, CWA, RCRA, ESA, EPCRA) and their technical/engineering implications
- Experience supporting permit applications, EIS/EA technical sections, or environmental engineering design packages
- Strong analytical, technical writing, and project-prioritization skills
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.
Mariana Minerals is hiring a Senior Environmental Engineer to provide technical environmental engineering support across our U.S. mining, processing, and refining project sites in a fast-paced, multi-project environment. Reporting to the Global Environmental Permitting Lead, you will apply your engineering background to environmental studies, permitting technical support, monitoring program design, and the integration of environmental requirements into engineering and design decisions across FEL 1–3, detailed design, construction, and operations.
This role requires the ability to move quickly across multiple concurrent projects, prioritize effectively, and deliver high-quality technical work under compressed timelines. You will also support due diligence and sustainability initiatives, and work closely with the Global Environmental Permitting Lead, the Regional...
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