# Analytical Lab Chemist

**Company:** [Mariana Minerals](https://zerogtalent.com/frontier-companies/mariana-minerals)
**Location:** San Francisco HQ
**Work mode:** On-site
**Seniority:** Senior
**Employment type:** Full Time
**Salary:** USD 110K–130K/yr
**Category:** Science
**Department:** Plant Operations
**Listed:** 2026-11-13

[View and apply on Zero G Talent](https://zerogtalent.com/frontier-jobs/mariana-minerals/analytical-lab-chemist-1b0310c9-1473-4330-8b6e-975ea983a5ba)

## What you'll do

- Operate, calibrate and troubleshoot ion chromatography and other analytical instruments
- Perform precise sample preparation including weighing, digestion and filtration
- Prepare standards and run routine analytical testing accurately
- Record data in LIMS and review results for integrity
- Manage chemical inventory and waste disposal to regulatory standards

## What you need

- Associate or bachelor’s degree in Chemistry or related scientific field
- Hands-on ion chromatography (IC) experience strongly preferred
- Proficiency in wet chemistry: pipetting, titration, acid digestion
- Knowledge of EPA, ISO or GLP/GMP standards
- Experience with ICP-OES/MS or XRF is a plus

## Job 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.

Join our laboratory team as an **Analytical Lab Chemist.** This senior-level role focuses on high-quality sample preparation and routine analytical testing, with a particular emphasis on ion chromatography (IC). The ideal candidate is a disciplined scientist who prioritizes lab safety, enjoys hands-on analytical work, and has a solid understanding of IC, spectroscopic instrumentation and other chemical analysis equipment.

**Key Responsibilities**

-   Operate, calibrate and troubleshoot analytical instruments, particularly ion chromatography (IC), along with ICP-OES/MS and XRF
    
-   Perform precise sample preparation across various matrices, including weighing, digestion, dilution and filtration, with zero cross-contamination
    
-   Prepare standards and calibration solutions, and run routine analytical testing with accurate, reliable results
    
-   Record observations and raw data accurately in LIMS or lab notebooks, and review results for integrity
    
-   Flag instrument or data issues early and help work out the cause
    
-   Keep a clean, organized workspace and manage chemical inventory and waste disposal to regulatory standards
    
-   Follow all SOPs, chemical hygiene plans and PPE requirements to keep the lab safe
    

**Required Qualifications**

-   Associate or bachelor’s degree in Chemistry, Biochemistry or a closely related scientific field
    
-   Hands-on ion chromatography (IC) experience strongly preferred
    
-   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 a plus
    
-   Knowledge of EPA, ISO or GLP/GMP standards
    
-   Strong attention to detail, excellent time management, a collaborative approach and a willingness to learn new skills
    

**Schedule**

-   Full-time, Monday–Friday, day shift, based at our San Francisco HQ
    

**Working Environment & Physical Requirements**

-   Laboratory setting with regular handling of acids, solvents, and other hazardous chemicals
    
-   Required PPE includes lab coat, safety glasses, gloves, and closed-toe shoes
    
-   Ability to stand at a lab bench for extended periods
    
-   Ability to lift up to 25 lbs
    
-   Fine motor skills for precise pipetting, weighing, and instrument handling
    

### **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!**

## Other open roles at Mariana Minerals

- [Regional Environmental Manager](https://zerogtalent.com/frontier-jobs/mariana-minerals/environmental-manager-3732efec-c403-44b6-85ee-0c041fc6373a) — Moab, UT
- [Maintenance Technician – Electrical & Controls](https://zerogtalent.com/frontier-jobs/mariana-minerals/maintenance-technician-electrical-controls-5fb6514b-92f4-4e02-b2c2-656dbfb6dec7) — Joaquin, TX
- [Procurement Manager, Construction](https://zerogtalent.com/frontier-jobs/mariana-minerals/procurement-manager-construction-46d5a635-c70b-4a81-ae38-9cc9d37e1801) — San Francisco HQ
- [Staff Instrumentation and Controls Engineer](https://zerogtalent.com/frontier-jobs/mariana-minerals/staff-instrumentation-and-controls-engineer-4db588c3-f517-4ff7-82d5-5fbd8f1efb9e) — San Francisco HQ
- [Lab Technician](https://zerogtalent.com/frontier-jobs/mariana-minerals/lab-technician-2187a2aa-9029-4694-9471-8d70a0e4ae9a) — Moab, UT

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