Lab Technician: Wet Chemistry & Sample Prep

LE002 Onterris Payroll, LLC; Orange (CA); On-site; USD 23,000 - 28,000; Full time

Job summary

Onterris is seeking a Full-Time Laboratory Assistant in Orange, CA. You will prep, handle, and document samples, work with a dedicated team, and help maintain a compliant, safe lab environment to ensure on-time results. Compensation includes hourly pay with growth opportunities in a purpose-driven, environmentally focused company.

You will follow SOPs, support QA programs, and participate in safety plans while contributing to critical wet chemistry tasks in a collaborative setting.

Qualifications

• High School diploma or equivalent is required.
• Ability to follow written procedures and instructions.
• Basic understanding of laboratory safety practices.
• Preferred experience in laboratory, sample-handling, or wet chemistry.

Responsibilities

• Retrieve, receive, label, store, and dispose of samples in accordance with SOPs, QA requirements, and safety procedures.
• Perform basic sample preparation for soil, water, and air samples under supervision.
• Prepare reagents and solutions following approved written procedures.
• Perform gravimetric and titrimetric measurements as trained.
• Assist with filtration, aliquoting, weighing, and other defined preparation steps.
• Maintain cleanliness and organization of laboratory work areas, glassware, and storage locations.
• Restock consumables, chemicals, and supplies and notify supervisors of low inventory.
• Support proper sample storage, refrigerator/freezer organization, and waste handling.
• Wear required PPE at all times and report unsafe conditions or spills immediately.
• Comply with Onterris Quality Assurance Program and other policies.
• Comply with Onterris Health and Safety Plan
• Other duties as assigned by the Group Leader, Operations Manager, or Lab Director

Skills

Follow procedures

Attention to detail

Teamwork

Willingness to learn

Lab safety basics

Education

High School diploma or equivalent

Job description

Onterris is seeking a Full-Time Laboratory Assistant in Orange, CA. You will prep, handle, and document samples, work with a dedicated team, and help maintain a compliant, safe lab environment to ensure on-time results. Compensation includes hourly pay with growth opportunities in a purpose-driven, environmentally focused company.

You will follow SOPs, support QA programs, and participate in safety plans while contributing to critical wet chemistry tasks in a collaborative setting.