Laboratory Technician - Wet Chemistry

About Us

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.

Laboratory Technician I in the Orange, CA Laboratory
. Responsibilities include preparing samples, supporting daily lab operations, and collaborating with teammates—delivering safe, accurate, on-time results every day. Compensation is $18 to $23 per hour, commensurate with experience, skills, and geographic location.
Schedule: Full-Time. Sunday - Thursday, 2:00 PM - 10:30 PM.

• Analyze water and soil samples for alkalinity, conductivity (EC), pH, settleable 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.
• Clean laboratory glassware.
• Maintain clean laboratory areas.
• Maintain organized records of sample preparation and analysis.
• Participate in overhead projects designed to improve efficiency or accuracy of analyses.
• Assist 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.

• High school diploma or equivalent required.

• Knowledge of analytical methods, instruments, general lab practices and lab safety.
• Ability to work independently and in a team.
• Good organizational skills and strong communication skills.

• Sitting, standing, and walking.
• Must be able to work in a stationary position for the 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.

We are an equal opportunity employer and encourage applications from people of all backgrounds. We acknowledge that these experiences and perspectives help to enrich our teams and contribute to our ongoing success. We are committed to providing access and reasonable accommodation in our employment for all applicants. For US residents,  to learn more.