# Senior/Staff Chemical Process 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: Senior
- Location: San Francisco HQ
- Work setup: On-site
- Pay: $140K to $175K base salary per year (USD)
- Posted: 2026-10-26
- Apply by: 2026-12-10
- Apply: https://jobs.ashbyhq.com/marianaminerals/29a1a6e4-db3f-406d-af65-e7c00c3d8ff6?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/mariana-minerals-senior-staff-chemical-process-engineer/

## About the role

Mariana Minerals is looking for a highly motivated Sr./Staff Process Engineer to work on building the critical minerals supply chain to support the world’s energy transition and to supply metals necessary for technology and AI, energy, mobility, and defense. Found on 1752vc Careers, the job board for startup and VC roles.

Tags: Plant Engineering

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/mariana-minerals-senior-staff-chemical-process-engineer/