Laboratory Technician I - Wet Chemistry (2nd Shift)

LE002 Onterris Payroll, LLC; Orange (CA); On-site; USD 28,000 - 32,000; Full time

Job summary

Onterris is seeking a Laboratory Technician I for our Orange, CA lab. You will prepare samples, support daily operations and deliver safe, accurate results with teammates.

Responsibilities include analyzing water and soil samples for multiple parameters, cleaning glassware, maintaining records, and assisting with inventory while adhering to QA and safety policies. This role runs 2:00 PM–10:30 PM, Monday–Friday.

Qualifications

• 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.

Responsibilities

• Analyze water and soil samples for alkalinity, conductivity, pH, solids and turbidity.
• Analyze samples for Oil & grease, cyanide, sulfides, BTU, and related parameters.
• Analyze samples for ammonia, BOD, COD, hexavalent chromium and TOC.
• Clean laboratory glassware and maintain clean areas.
• Maintain organized records of sample preparation and analysis.
• Assist in acquiring inventory of consumables, chemicals, and parts for instrumentation.
• Comply with QA and Health & Safety programs.

Skills

Analytical thinking

Teamwork

Organization

Communication

Education

High School diploma

Job description

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.

A Day in the Life

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.

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.

Your Expertise and Skills

• 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.

Work Environment & Physical Requirements

• 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.

Equal Opportunity

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, click here to learn more.

Testimonials

“Working with inspiring coworkers and clients across the globe over the past five years has been incredibly rewarding. Their passion motivates me to improve our client experience and work that I deliver.” – Erin Peck, Emissions Services

“There are not many places where a toxicologist can be boots‑on‑the‑ground at an environmental emergency one day and deep in a human health risk assessment or litigation the next, but this company is one of them, and honestly, that breadth is what makes me love the work. We are a team of scientists with a broad range of talents and experiences who genuinely take the mission to heart, because protecting people and communities from chemical hazards is not abstract here; it is exactly why we show up every day. The culture reflects that shared commitment in the best way: collaborative, rigorous, and truly motivated by the impact we make together.” – Andre Richardson, Consulting

“I knew my position here would be more than just a job. Every day is a new, exciting challenge to solve, and I get to go home knowing that the work I am doing is having a positive impact on the world.” – J Esteves, R&D