# Administrative Assistant 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: Houston, TX
- Work setup: On-site
- Posted: 2026-08-26
- Apply by: 2026-10-10
- Apply: https://jobs.ashbyhq.com/marianaminerals/42d74030-792c-44d6-9d93-6c0623d19cf7
- Page: https://www.1752.vc/careers/jobs/mariana-minerals-administrative-assistant/

## About the role

We are seeking a highly organized and proactive Administrative Assistant to support day-to-day administrative operations at our Houston office. This role is ideal for someone early in their career who is detail-oriented, resourceful, and eager to grow within an operations or executive support function.

## What they're looking for

- 1–3+ years of administrative or office support experience preferred
- Strong organizational skills and attention to detail
- Excellent written and verbal communication skills
- Proficiency in Microsoft Office
- Experience with expense management and calendar systems preferred
- Ability to handle confidential information with discretion