# Mobile Maintenance Supervisor at Mariana Minerals

- Company: Mariana Minerals
- What the company does: 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.
- Company website: https://marianaminerals.com/
- Type: Startups
- Level: Mid level
- Location: Moab, UT
- Work setup: On-site
- Posted: 2026-10-28
- Apply by: 2026-12-12
- Apply: https://jobs.ashbyhq.com/marianaminerals/053a699e-642c-4ebc-95ea-8630c69bc3b7?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/mariana-minerals-mobile-maintenance-supervisor-2/

## About the role

Lead, supervise, and develop a team of maintenance technicians while maintaining a safety-first mentality and a strong culture of accountability, teamwork, and continuous improvement. Conduct safety meetings and workplace inspections, address hazards, and ensure work is performed in accordance with company policies and applicable safety requirements. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- Previous supervisory, lead technician, or crew-leadership experience, with the ability to coach technicians and provide technical direction in the field
- Minimum of 5 years of mining maintenance experience, with strong hands-on experience supporting heavy mobile mining equipment
- Strong troubleshooting and failure-analysis skills across mechanical, hydraulic, and electrical systems, including the ability to read hydraulic and electrical schematics, welding experience is a plus
- Experience with Caterpillar mobile mining equipment and electronic diagnostic tools, familiarity with CAT ET, CAT SIS, and direct experience with CAT 777 haul trucks and/or CAT 992K wheel loaders is strongly preferred
- Strong communication, organization, and problem-solving skills, with the ability to make decisions, take ownership, and work effectively in a growing operation where processes and systems are still being developed
- Experience using maintenance tracking systems and Microsoft Office applications

Tags: Plant Operations

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/mariana-minerals-mobile-maintenance-supervisor-2/