Senior Environmental Engineer - Mining Permitting Lead

Mariana Minerals; San Francisco (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

Mariana Minerals seeks a Senior Environmental Engineer to provide technical environmental support across our U.S. mining, processing, and refining sites.

You will apply your engineering background to environmental studies, permitting, monitoring design, and integrating environmental requirements into engineering decisions from FEL 1–3 through construction and operations. This role requires rapid work across multiple projects, prioritization, and delivering high-quality results under tight

Qualifications

• Bachelor’s or Master’s degree in Environmental Engineering or related field.
• 5+ years’ environmental engineering experience in mining, energy, or large infrastructure.
• Working knowledge of environmental studies and modeling (air, water, stormwater) and monitoring program design.
• Familiarity with U.S. environmental regulations (CAA, CWA, RCRA, ESA, EPCRA).
• Experience supporting permit applications, EIS/EA sections, or environmental design packages.
• Strong analytical, technical writing, and project-prioritization skills.

Responsibilities

• Conduct environmental studies (air quality modeling, water quality assessments, stormwater design) supporting permitting and compliance across projects.
• Design and implement environmental monitoring programs and analyze results for reporting and decision-making.
• Support integration of environmental requirements into FEL 1–3 and detailed design with process and civil teams.
• Prepare technical sections of permit applications, EIS/EA chapters, and supporting documentation.
• Develop EMS and support stormwater, spill prevention, and waste management programs.
• Assist due diligence reviews and ESG data reporting; contribute to sustainability initiatives.
• Collaborate with process engineering, operations, and legal on environmental questions.

Skills

Environmental engineering

Environmental modeling

Regulatory knowledge

Technical writing

Project prioritization

Education

Bachelor’s or Master’s in Environmental Engineering

Environmental Science (related field)

Job description

Mariana Minerals seeks a Senior Environmental Engineer to provide technical environmental support across our U.S. mining, processing, and refining sites.

You will apply your engineering background to environmental studies, permitting, monitoring design, and integrating environmental requirements into engineering decisions from FEL 1–3 through construction and operations. This role requires rapid work across multiple projects, prioritization, and delivering high-quality results under tight