Quality Control Chemist

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Full Time Clerical, St Louis, St Louis MO, US

15 days ago Requisition

Starting at $28+ per hour depending on experience!

Competitive benefits and opportunities for growth available!

Tri Rinse is an award‑winning, St. Louis‑based provider of agricultural services including seed box management, container management, industrial cleaning, and formulation/packaging. With our promise of stewardship and sustainability, Tri‑Rinse grew out of a demand for EPA‑compliant, environmentally responsible services, which we continue to provide for our customers in new and expanding ways. Our biggest asset is our people. Their integrity, resourcefulness, and customer‑first mentality fuel our reputation as true problem‑solvers for our industry.

Encouraged by a culture of collaboration, we share the liability and passion necessary to truly innovate.

• Family owned since 1981 and growing!
• Team‑oriented Culture
• Recognition and rewards for team member contributions!
• Opportunity for advancement
• Great health benefits at a low monthly cost to you and minimal out of pocket expenses
• Flexible Spending Accounts (FSAs)
• Profit Bonus
• 401(k) match
• Paid Vacation Days and Holidays
• Company paid Short‑Term and Long‑Term Disability insurance

You will work independently to provide analytical support to our Formulation and Packaging Department to ensure all products meet customer and regulatory specifications.

• Perform formulation assays and residual impurity analysis by GC and HPLC.
• Particle size analysis by laser diffraction.
• Wet chemistry testing such as density, viscosity, emulsion, pH, suspensibility.
• Complete quality checks on the production lines as needed.
• Assist with production quality paperwork and tracking quality metrics.
• Create COA for production batches.
• Maintain sample inventory and equipment records.
• Verify equipment cleanout records against customer specifications.
• Ensure that all lab equipment is maintained, calibrated with documentation, and available for use.
• Maintain gas, standard, reagent, and consumable inventory.
• Support all other Tri Rinse divisions as required.

• You have about 3-6 years of lab technician experience in a QC, cGMP, or research laboratory.
• It’s preferred if you’ve earned a BS degree in Chemistry or a related field.
• You are highly competent in Microsoft Office applications.
• You are a self‑starter and can effectively work independently or collaborate as needed.
• You possess demonstrated problem‑solving abilities.
• You have excellent organizational and time‑management skills.

• Talk, hear, stand, walk, use hands to handle or feel, and reach with hands and arms.
• Lift and carry up to 50 lbs.
• Obtain a respirator certification and regularly wear a full‑face respirator.

• Climate‑controlled laboratory environment
• Non‑climate‑controlled industrial warehouse environment

Equal Opportunity Employer