Senior Staff Site Development Engineer | San Francisco, CA

Mine Design and Planning
California, United States
May 16, 2026
$140,000 - $175,000 / year
Full-time
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Job Description

Company: Mariana Minerals
Location: San Francisco, California, United States (On-site)
Category: Mine Design and Planning
Job Type: Full-time
Experience Level: Senior-Level
Salary: $140,000 – $175,000 USD / year
Compensation: Offers equity

Job Summary
Mariana Minerals is seeking a Senior Staff Site Development Engineer to lead the planning and design of greenfield project sites for first-of-its-kind mining and metallurgical processing facilities.

This role focuses on end-to-end site development, including site selection, feasibility, civil design, grading, drainage, utilities, infrastructure planning, permitting support, and construction execution.

Key Responsibilities

  • Develop and optimize site layouts, including grading, drainage, stormwater management, access roads, and utility corridors
  • Drive early-stage site selection, feasibility studies, and due diligence
  • Evaluate topography, geotechnical constraints, permitting considerations, and infrastructure access
  • Design and review earthwork plans, cut/fill balancing, and mass grading strategies
  • Coordinate site infrastructure systems including roads, drainage, underground utilities, and external infrastructure tie-ins
  • Manage external engineering firms, consultants, and contractors supporting civil and site development scopes
  • Oversee issued-for-construction packages for site civil works
  • Collaborate with structural, process, mechanical, and electrical teams to ensure integrated site design
  • Review and validate 3D models and design packages using Civil 3D, Revit, Navisworks, and related tools
  • Conduct constructability reviews and support cost estimation and scheduling for site development scopes
  • Support permitting and regulatory approvals, including grading permits, stormwater compliance, and environmental considerations
  • Provide field engineering support during construction and resolve site-related issues in real time
  • Develop and improve standards, workflows, and tools for scalable site development across multiple projects

Qualifications

  • Bachelor’s degree in Civil Engineering required
  • Master’s degree preferred
  • 10+ years of experience in site development and civil engineering for industrial, mining, or large-scale infrastructure projects
  • Proven experience delivering greenfield capital projects from concept through construction
  • Professional Engineer license or ability to obtain within 6 months preferred
  • Strong experience with site grading, drainage design, stormwater management, and hydrology/hydraulics
  • Experience with earthwork optimization, mass balance, roadway design, access design, and underground utilities
  • Working knowledge of geotechnical principles and site constraints
  • Familiarity with permitting and regulatory requirements for site development
  • Proficiency with Civil 3D required
  • Experience with AutoCAD, Revit, Navisworks, and Bluebeam preferred
  • Experience reviewing and coordinating 3D design models and multidisciplinary layouts
  • Strong track record managing external engineering firms and contractors
  • Ability to work across civil, structural, process, mechanical, and electrical teams
  • Experience in industrial manufacturing, mining, mineral processing, chemical facilities, or EPC environments preferred

What We Can Offer You

  • Opportunity to lead site development for first-of-its-kind critical minerals facilities
  • Work on projects supporting modern energy, AI, and defense technologies
  • Autonomy to make meaningful engineering and project decisions
  • Collaboration with engineering, construction, and project delivery teams
  • Opportunity to improve internal standards, workflows, and tools for capital project execution
  • Mission-driven culture focused on ownership, optimization, automation, and collaboration
  • Competitive base salary and equity opportunity

Why This Role Matters
This role is important because site development is foundational to the successful delivery of mining and metallurgical processing facilities.

As a Senior Staff Site Development Engineer, you will help ensure project sites are designed for constructability, scalability, permitting success, and long-term operational performance.

Apply
👉 Apply online: https://jobs.ashbyhq.com/marianaminerals/34229014-6dac-4c17-afe1-d120206b1c46

⚠️ Disclaimer
This job is shared for informational purposes. WeMineUp is not affiliated with the hiring company. Please apply through the official company process.

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