# Project Engineer 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: 2026-10-19
- Apply by: 2026-12-03
- Apply: https://jobs.ashbyhq.com/marianaminerals/869b7615-7e92-4514-a4c0-462bed10f37d?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/mariana-minerals-project-engineer/

## About the role

Scope, design, and lead process improvement and capital projects from concept through commissioning Develop process flow diagrams, P&IDs, mass and energy balances, and equipment specifications Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- Bachelor's degree in Mechanical Engineering preferred or another related engineering degree
- Process or mechanical engineering experience in mining, chemical, oil & gas, or other heavy industrial operations, 4+ years
- Hands-on experience taking projects from design through commissioning and startup
- Comfort reading and producing P&IDs, PFDs, and equipment datasheets
- Strong data skills, experience with process data historians, Python, or similar tools is a plus
- Experience with hydrometallurgy, leaching, solvent extraction, or electrowinning is a plus

Tags: Plant Operations

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/mariana-minerals-project-engineer/