# Analytical Lab Chemist at Mariana Minerals

Analytical Lab Chemist at Mariana Minerals in San Francisco HQ. On-site, full-time, paying $110k–$130k. Posted October 28, 2026.

- Company: Mariana Minerals
- Location: San Francisco HQ
- Workplace: On-site
- Job type: Full-time
- Pay: $110k–$130k
- Posted: 2026-10-28
- Apply: https://jobs.ashbyhq.com/marianaminerals/aa6e92e1-680e-4470-8737-c3b7c82280d3/application
- Source: https://jobmagic.ai/jobs/analytical-lab-chemist-mariana-minerals-1y1ect

## Requirements

- An associate/Bachelor’s degree in Chemistry, Biochemistry, or a closely related scientific field.
- Demonstrated proficiency in wet chemistry techniques (pipetting, titration, acid digestion).
- Familiarity with the principles of analytical instrumentation.
- Hands-on experience or academic exposure to Titration, Flame AA, ICP-OES/MS, or XRF is desirable.
- Knowledge of EPA, ISO, or GLP/GMP standards.
- Soft Skills: Strong attention to detail, excellent time management, and a commitment to collaborative teamwork, and willing to learn new skills.

## Description

**About Mariana Minerals**Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We’re reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making.
We are seeking a detail-oriented** Analytical Lab Chemist** to join our laboratory team. This senior-level role focuses on high-quality sample preparation and the execution of routine analytical testing. The ideal candidate is a disciplined scientist who prioritizes laboratory safety, is interested in hands-on analytical jobs, and possesses a foundational understanding of spectroscopic instrumentation and other chemical analysis equipment.
 

### **Key Responsibilities:**

- Safety & Compliance: Strictly adhere to all SOPs, chemical hygiene plans, and PPE requirements to maintain a safe working environment.

- Lab Maintenance: willing to maintain a clean and organized workspace; manage chemical inventory and waste disposal according to regulatory standards.

- Sample Preparation: Perform precise preparation of various sample matrices, including weighing, digestion, dilution, and filtration, ensuring zero cross-contamination.

- Instrument Operation: Assist in the operation, calibration, and basic troubleshooting of analytical equipment.

- Data Management: Accurately record experimental observations and raw data into Laboratory Information Management Systems (LIMS) or lab notebooks.

### Required Qualifications:

- An associate/Bachelor’s degree in Chemistry, Biochemistry, or a closely related scientific field.

- Demonstrated proficiency in wet chemistry techniques (pipetting, titration, acid digestion).

- Familiarity with the principles of analytical instrumentation.

- Hands-on experience or academic exposure to Titration, Flame AA, ICP-OES/MS, or XRF is desirable.

- Knowledge of EPA, ISO, or GLP/GMP standards.

- Soft Skills: Strong attention to detail, excellent time management, and a commitment to collaborative teamwork, and willing to learn new skills.

### **Our culture is built on four principles:Everyone Gets Home Safe. **We never put speed or cost ahead of people.
**Extreme Ownership. **We take full responsibility for outcomes, relentlessly driving toward solutions.
**Engineer Out Requirements, then Automate. **We simplify, optimize, and then automate for scale.
**Share Your Legos.** We collaborate openly, share knowledge, and empower each other to build bigger, better solutions.

**Join us as we build the future of responsible mineral sourcing and supply!**