2,076,356open jobs
123,151companies
250,928added this week
Browse all
Salary
$110k – $130k per year
Location
In office (San Francisco)
Visa
H-1B filings in 12 months: 15
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 31, 2026. First seen by Alion on Oct 28, 2026. Mariana Minerals scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Mariana Minerals is a software-first, vertically integrated critical minerals company headquartered in San Francisco, California. Founded in 2024, the company designs, builds, and operates its own domestic mining and refining operations to produce battery-grade lithium, copper cathode, and nickel essential for energy, AI, and defense infrastructure. At the core of its business is MarianaOS, an in-house software suite combining autonomous fleet systems, digital twin geologic modeling, dynamic process control, and LLM-powered capital project management platforms (CapitalProjectOS, MineOS, PlantOS) designed to accelerate commissioning timelines and reduce steady-state operating costs.

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-orientedAnalytical 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!

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
2,076,356 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Science & Research
Similar stack
Same company
San Francisco
≈ $78k – $154k per year (Estimated) · In office · Full-Time · 5+ years exp · Master's Degree · Franklin
Apply
≈ $62k – $170k per year (Estimated) · In office · Full-Time · PhD · Saint Louis
Apply
ALS Lab Manager 2 months ago
$120k – $132k per year · Equity · In office · Nationals only · Full-Time · 8+ years exp · Washington
Robotics
MRPT
Apply
≈ $75k – $176k per year (Estimated) · In office · Full-Time · 2+ years exp · PhD · Charleston
Apply
≈ $66k – $183k per year (Estimated) · In office · Full-Time · PhD · Charleston
Apply
$186k – $260k per year · Hybrid · Full-Time · 8+ years exp · Bachelor's Degree · San Francisco · Washington
Python
Java
Kotlin
Java
Spring Boot
Kotlin
Mockito
Databases
ActiveMQ
AI/ML
Copilot
Claude Code
Model Context Protocol
Function Calling
AI Agents
AWS Bedrock
LLM
AWS Bedrock AgentCore
LLM Guardrails
Agentic Workflows
Mobile
JUnit
DevOps
Rest API
GitHub Actions
CI/CD
GitOps
AWS
Kubernetes
Amazon EKS
SLI/SLO/SLA
GitHub
IAM
SOAP
QA
Pact
Apply
$83k – $130k per year · Equity · In office · 3+ years exp · San Francisco · New York
SQL
Databases
Snowflake
AI/ML
Copilot
Claude
Model Context Protocol
AI Agents
DevOps
Rest API
Marketing
Salesforce
Apply
≈ $101k – $196k per year (Estimated) · Equity · In office · Full-Time · 10+ years exp · Bachelor's Degree · Tampa · Boston · Seattle · Arlington · Atlanta
ABAP
ABAP
SAP BTP
AI/ML
AI Agents
DevOps
Rest API
CI/CD
AWS
Analytics
SAP BusinessObjects
Apply
≈ $109k – $218k per year (Estimated) · Equity · In office · Full-Time · 4+ years exp · Seattle · San Francisco · Palo Alto · Austin
AI/ML
AI Agents
DevOps
AWS
Analytics
Tableau
Apply
$231k – $314k per year · In office · Full-Time · 10+ years exp · Bachelor's Degree · San Francisco
Python
JavaScript
TypeScript
Databases
PostgreSQL
AI/ML
AI Agents
Frontend
React.js
Apply
See all jobs
This is one of many
2,076,356 more open roles from verified company boards, updated every day.