Job Description

Run CBR/Proctor tests, drive QC and inventory control with Growth Opportunities.

Overview – Senior Soils Laboratory Technician (CBR/Proctor) - St. Louis

• Lead soils/materials testing in a construction materials lab. Duties align with civil engineering technicians who test construction materials and document results.
• Full-time. On-site in St. Louis, MO.
• Hourly pay: $30-$40

Key Responsibilities – Senior Soils Laboratory Technician (CBR/Proctor) - St. Louis

• Perform CBR testing and standard/modified Proctor compaction per lab procedures.
• Execute soils classification, moisture-density, and related index tests; maintain accurate test records.
• Drive quality control of sample preparation, equipment checks, and data integrity.
• Manage inventory: molds, reagents, consumables; reorder and track stock levels.
• Oversee logistics: sample intake, labeling, chain-of-custody, and tracking through LIMS.
• Calibrate and maintain lab equipment; escalate repairs per schedule.
• Support reporting to project engineers; meet deadlines and budgets; uphold client satisfaction.
• Mentor junior techs; act as lead on assigned work orders; safety-first culture.

Qualifications – Senior Soils Laboratory Technician (CBR/Proctor) - St. Louis

• 4+ years in a soils/materials testing lab.
• Demonstrated experience with CBR and Proctor testing workflows.
• Strong QC mindset; meticulous labeling, tracking, and documentation.
• Proficient with MS Word, Excel, Outlook; basic LIMS familiarity.
• Clear references attesting to technical rigor and reliability.

Preferred Qualifications – Senior Soils Laboratory Technician (CBR/Proctor) - St. Louis

• Prior lead or senior technician responsibilities; informal team coaching.
• ACI Aggregate Level 1; Nuclear Gauge safety
• Experience with cost tracking and scheduling in a lab environment.

What We Offer – Senior Soils Laboratory Technician (CBR/Proctor) - St. Louis

• Stable workload in an established construction materials lab.
• Standard benefits package available; details provided at offer stage.

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