trawle

Mariana Minerals jobs

fintech · United States · marianaminerals.com

Careers page

Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying minerals critical to modern energy, AI, and defense technologies. It operates as a minerals project developer and operator with an emphasis on software-driven processes.

Is Mariana Minerals hiring?

Yes. Mariana Minerals has 101 open jobs as of 12 November 2026. Most are in Engineering (27%) and Skilled Trades & Maintenance (11%).

Updated 12 Nov, 05:01 UTC

Open jobs
101
Available now
New this week
7
First seen in the last 7 days
Typical listing age
12d
Median age of open listings
Reposts / reopenings
2%
Share of current open jobs

Open jobs at Mariana Minerals

Filter these jobs

Business Operations

1

Commercial & Product

5
  • Own procurement and lifecycle management of mobile equipment across sites and projects.

    • San Francisco, United States · On-site
    • $130,000 – 190,000 per year
    • 5+ yrs
  • Develops utilities contracting strategy and negotiates agreements for electricity, water, and natural gas across sites.

    • San Francisco, United States · On-site
    • $130,000 – 190,000 per year
    • 5+ yrs
  • Analyzes logistics requirements and external conditions to optimize freight movements and costs.

    • San Francisco, United States · On-site
    • $85,000 – 120,000 per year
    • 3+ yrs
  • Builds and leads Mariana’s logistics strategy and operations across sites and projects.

    • San Francisco, United States · On-site
    • $130,000 – 190,000 per year
    • 8+ yrs
    • San Francisco, United States +1 · On-site
    • $150,000 – 170,000 per year

Copper One

1

Engineering

10

Finance

3

General

6
  • Manages recruiting coordination to support hiring and candidate experience.

    • San Francisco, United States · On-site
    • $63,000 – 111,000 per year
    • 2+ yrs
  • Coordinate interview processes and candidate experience for recruiting across time zones.

    • Houston, United States · On-site
    • 2+ yrs
  • Oversees day-to-day operations of the Houston office and supports satellite locations, ensuring a safe, efficient, and welcoming workplace.

    • Houston, United States · On-site
    • 3+ yrs
  • Provides administrative and executive support to the CFO and backup to the Executive Assistant in a fast-paced environment.

    • Houston, United States · On-site
  • Builds and executes sourcing strategies for highly technical roles across teams.

    • San Francisco, United States · On-site
    • $100,000 – 175,000 per year
    • 5+ yrs
  • 12 days ago

    Sr. Recruiter

    • San Francisco, United States · On-site
    • $100,000 – 175,000 per year
    • Senior

Legal

2
  • 12 days ago

    IP Counsel

    Manages patent and IP matters across the company, from prosecution to strategic IP transactions.

    • San Francisco, United States · On-site
    • $130,000 – 185,000 per year
  • Manages the legal execution of acquisitions, joint ventures and other transactions from term sheets to closing.

    • San Francisco, United States · On-site
    • $130,000 – 185,000 per year
    • 5+ yrs

Plant Engineering

1
  • Leads development and deployment of chemical refining processes and supports automated plant optimization from concept to handover.

    • San Francisco, United States · On-site
    • $140,000 – 175,000 per year
    • Senior

Plant Operations

31
  • Performs electrical and controls maintenance, troubleshooting, and upgrades for industrial equipment.

    • Texas, United States · On-site
    • 3+ yrs
  • Maintenance technicians learn mechanical and electrical maintenance across mine and processing plant.

    • Moab, United States · On-site
    • Entry level
    • Changed today
  • Leads commissioning activities and builds detailed commissioning plans across sites.

    • Houston, United States +2 · Hybrid
  • 4 days ago

    Lab Technician

    Perform analytical sample preparation and analysis in a production lab at a mine.

    • Moab, United States · On-site
    • Possible repost
  • Operates heavy mining equipment and supports maintenance and safety tasks to meet production targets.

    • Moab, United States · On-site
  • Conduct analytical chemistry and lab operations to support mineral sampling.

    • San Francisco, United States · On-site
    • $110,000 – 130,000 per year
  • Supervises and mentors a maintenance team to safely maintain heavy mobile mining equipment.

    • Moab, United States · On-site
    • 5+ yrs
  • 12 days ago

    Process Engineer

    Act as the process owner for SX and EW circuits and drive improvements from idea to commissioning.

    • Moab, United States · On-site
  • Diagnoses, maintains, and repairs fixed plant equipment and facilities in an active mine environment.

    • Moab, United States · On-site
    • 2+ yrs
  • Troubleshoots and optimizes analytical instrumentation and methods across lab sites, enabling reliable data and validated workflows.

    • San Francisco, United States +1 · On-site
    • $85,000 – 100,000 per year

10 of 31 jobs loaded

Process Development

7
  • 12 days ago

    R&D Technician

    Executes designed experiments and operates chemical processing equipment to optimize extraction and separation processes.

    • San Francisco, United States · On-site
    • $40 – 47 per hour
  • Leads design, installation, and optimization of pilot-scale mechanical systems for minerals processing.

    • Houston, United States · On-site
    • $140,000 – 190,000 per year
    • 9+ yrs
  • Fabrication Technician supports design, installation, and maintenance of pilot plant systems and equipment.

    • San Francisco, United States · On-site
    • $45 – 55 per hour
  • Develops detailed process designs and deliverables for industrial facilities from concept to commissioning.

    • Houston, United States · On-site
    • 8+ yrs
  • Leads DSM pilot plant operations, ensuring safe, reliable, 24/7 operation and data generation.

    • Houston, United States · On-site
    • 5+ yrs
    • San Francisco, United States · On-site
    • $40 – 45 per hour
  • 12 days ago

    R&D Metallurgist

    • San Francisco, United States · On-site
    • $110,000 – 140,000 per year

Product Development

4

Project & Construction Management

16
  • Leads construction procurement activities for capital projects from strategy to closeout.

    • San Francisco, United States +3 · On-site
    • $130,000 – 180,000 per year
    • 10+ yrs
  • Own the cost baseline, forecast, and change control for capital projects.

    • Houston, United States +1 · On-site
    • $140,000 – 180,000 per year
    • 5+ yrs
  • Leads site quality across construction, testing, commissioning, handover, and closeout for projects.

    • Houston, United States · On-site
  • Coordinate and manage EPC project document control and training across engineering, GC and sub-contractors.

    • Houston, United States +1 · On-site
    • $76,000 – 115,000 per year
    • 3+ yrs
  • Oversees on-site industrial construction from mobilization through turnover.

    • Houston, United States · On-site
    • 10+ yrs
  • Draft and model 2D/3D drawings and BIM models for multi-disciplinary projects.

    • Houston, United States +1 · On-site
    • $100,000 – 140,000 per year
    • 3+ yrs
  • Leads plant design and BIM teams to develop and implement design standards and workflows.

    • Houston, United States +1 · On-site
    • $140,000 – 190,000 per year
    • 10+ yrs
    • Houston, United States · On-site
    • Senior
    • Houston, United States +1 · On-site
    • $100,000 – 140,000 per year
    • San Francisco, United States +1 · On-site
    • $150,000 – 200,000 per year
    • Senior

10 of 16 jobs loaded

Software Development

14

10 of 14 jobs loaded

Special Projects

1