Laboratory Technician - Wet Chemistry; 2nd Shift

About Us

At Onterris, we build careers grounded in purpose, responsibility and real-world impact.

At Onterris, we build careers grounded in purpose, responsibility and real-world impact.

For Planet and Progress  is our north star that guides everything we do. We believe environmental responsibility and human progress are interconnected, interwoven and international. Our scientists, engineers, field teams, consultants and professionals collaborate across disciplines and geographies, guiding industries and governments, ensuring that communities and environments thrive.

When you join us, you’re not just forging a career, you’re joining a movement. A movement for better thinking, smarter solutions and lasting impact.

Together, we will advance our way of life and protect the integrity of our environment every step of the way.

As a Laboratory Technician I, in our Orange, CA Laboratory, you'll start where precision meets purpose. You'll be responsible for preparing samples, supporting daily lab operations, and collaborating with experienced teammates—delivering safe, accurate, on-time results every day.

The compensation range for this role is $20 to $23 per hour, commensurate with experience, skills, and geographic location.

Department: Wet Chemistry

Schedule: Full-Time. Monday - Friday, 2:00 PM - 10:30 PM

To thrive in this role in the Wet Chemistry Department, you’ll be comfortable taking ownership of the following responsibilities:

• Analyze water and soil samples for alkalinity, conductivity (EC), pH, settlable solids, total dissolved solids (TDS), total suspended solids (TSS), and turbidity.
• Analyze water and soil samples for Oil & grease, Oil & Grease with silica cleanup, cyanide, sulfides, BTU, corrosivity, Ferrous iron, Flash point, Ignitability, MBAS, Phenols, Ortho and total phosphates, Reactive Cyanide, Reactive Sulfide, Salinity.
• Analyze water and soil samples for Ammonia, BOD, COD, Hexavalent Chromium, and TOC
• Cleaning of laboratory glassware
• Maintaining clean laboratory areas
• Maintaining organized records of sample preparation and analysis
• Overhead projects designed to improve efficiency of, or accuracy of analyses
• Assisting the Group Leaders and analysts in acquiring and inventorying consumables, chemicals, and parts for instrumentation
• Comply with Onterris Quality Assurance Program and other policies
• Comply with Onterris Health and Safety Plan
• Other duties as assigned by the Group Leader or Lab Director

These requirements reflect the knowledge, skills and abilities that help you do your best work here.

• High School diploma or equivalent required
• Knowledge of analytical method, analytical instruments, general lab practices and lab safety
• Ability to work independently and in a team
• Good organizational skills and strong communication skills

The physical and environmental requirements below reflect what’s typically needed to perform the essential functions of this role safely and effectively. We may provide reasonable accommodations to qualified individuals with disabilities, consistent with applicable law, to support performance of the essential functions.

• Sitting, standing, and walking
• Must be able to work in a stationary position for entire shift duration
• Lifting and moving up to 25 lbs independently and 50 lbs using assisted lifting equipment
• Works in a laboratory and/or office environment

Onterris is a leading global environmental solutions company partnering with organizations to solve complex challenges where environmental pressures, regulatory expectations and operational risks intersect. Guided by our mission to advance the way of life without compromising the integrity of our environment, we believe…