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Analytical Lab Chemist

Join Mariana Minerals as an Analytical Lab Chemist to perform sample prep and analytical testing in a state-of-the-art lab.

Location
San Francisco, United States
Compensation
Not disclosed
Level
mid
Type
full time · On-site

Posted by employer 10 hours ago

First seen on Joblaze 1 hour ago

Last verified on the company career page 1 hour ago

Apply at Mariana Minerals → Save job Scanned from marianaminerals.com

What you'll build

  • Perform precise sample preparation
  • Prepare standards and calibration solutions
  • Operate, calibrate, and troubleshoot analytical equipment
  • Record data accurately in LIMS or lab notebooks
  • Write and improve SOPs and lab workflows

Must have

  • Bachelor’s degree in Chemistry, Chemical Engineering, or a related field
  • Lab experience through undergraduate research, internships, co-ops, or work
  • Hands-on ion chromatography (IC) experience strongly preferred
  • Solid wet chemistry skills
  • Experience with ICP-OES/MS, XRF, AA, GC, HPLC, or UV-Vis

Nice to have

  • Familiarity with EPA, ISO, or GLP/GMP standards
  • Mining, metals, or hydrometallurgy exposure

Practical constraints

  • 25–35% travel (about one week a month) to other lab sites

Requirements

Education
Bachelor's degree
Visa
No sponsorship (stated in posting)

Not disclosed in this posting: compensation, years of experience.

Joblaze summary

In the role of Analytical Lab Chemist at Mariana Minerals, the individual will conduct sample preparation and analytical testing using advanced equipment, while ensuring data accuracy and instrument performance. Key skills include hands-on experience with ion chromatography, ICP-OES, and solid wet chemistry techniques, alongside a strong troubleshooting ability. This position is ideal for someone with a background in chemistry or chemical engineering, particularly those with lab experience and a keen interest in problem-solving. The team emphasizes collaboration and knowledge sharing, supporting growth within a company focused on innovative mineral sourcing.

Joblaze insights

  • Listed today — first seen on Joblaze October 21, 2026. Last confirmed on Mariana Minerals's careers page October 21, 2026.
  • This exact title is also open at 1 other location at Mariana Minerals: Moab, UT, United States.

Quick facts

Is the Analytical Lab Chemist role remote?
No — this is an on-site role in San Francisco, United States.
Where is the role based?
Mariana Minerals is hiring for this position in San Francisco, United States.
What's the tech stack?
Joblaze extracted these technologies from the posting: ICP-MS, ICP-OES, XRF, ion chromatography, wet chemistry.
What seniority level is this role?
Mariana Minerals targets mid-level candidates for this position.
Is this full-time or contract?
Full-time for this Analytical Lab Chemist role at Mariana Minerals.

From the original posting

Position Summary

Join our analytical lab in San Francisco as an Analytical Lab Chemist. You’ll run sample prep and analytical testing on state-of-the-art equipment in a newly renovated lab, keep data accurate and instruments performing at their best, and dig into problems that don’t come with a textbook answer, like an unknown sample straight from the plant. You’ll work closely with our lab technicians and learn alongside an analytical team that supports labs across multiple sites, with room to grow into owning the lab or a regional or global role as we expand.

Responsibilities

  • Perform precise sample preparation across various matrices, including weighing, digestion, dilution, and filtration

  • Prepare standards and calibration solutions

  • Operate, calibrate, and troubleshoot analytical equipment, particularly ion chromatography (IC), ICP-OES, ICP-MS, and XRF

  • Record data accurately in LIMS or lab notebooks and review results for integrity

  • Help diagnose analytical problems, including unknown samples from the plant, and work with operations on next steps

  • Write and improve SOPs and lab workflows

  • Support lab technicians and share knowledge across the team

  • Follow all SOPs, chemical hygiene plans, and PPE requirements; manage chemical inventory and waste to regulatory standards

Qualifications & Experience

  • Bachelor’s degree in Chemistry, Chemical Engineering, or a related field

  • Lab experience through undergraduate research, internships, co-ops, or work

  • Hands-on ion chromatography (IC) experience strongly preferred

  • Solid wet chemistry skills, including acid digestion and preparing standards

  • Experience with ICP-OES/MS, XRF, AA, GC, HPLC, or UV-Vis, whether in research or coursework

  • A troubleshooter who likes figuring out why an instrument or result isn’t right

  • Familiarity with EPA, ISO, or GLP/GMP standards a plus

  • Mining, metals, or hydrometallurgy exposure a plus

  • Authorized to work in the US without sponsorship

Schedule

  • Full-time, salaried

  • 25–35% travel (about one week a month) to our other lab sites, including occasional weekend travel

Working Environment & Physical Requirements

  • Regular work with chemicals, acids, and acid digestions; standard lab PPE required (safety glasses, lab coat, gloves)

  • Able to stand and work at a lab bench for extended periods and lift samples and supplies up to 25 lbs

Our culture is built on four principles:

Standard company text repeated across Mariana Minerals's postings is omitted here.

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