Laboratory Assistant - Sample Receiving / PUSH Team

LE002 Onterris Payroll, LLC; Orange (CA); On-site; USD 28,000 - 30,000; Full time

Job summary

Onterris is seeking a Full-Time Laboratory Assistant in Orange, CA to prepare and weigh samples, maintain records, and support day-to-day lab operations. The role offers entry-level responsibilities with growth potential in a quality-driven environment.

You will handle sample prep, data entry, and housekeeping while adhering to the company QA program and safety plans. Strong communication and teamwork are essential for success.

Qualifications

• High School Diploma required.
• Basic laboratory techniques including PPE, balance, pipetting, and glassware handling.
• Basic Excel and data entry skills.
• Ability to follow directions and work in a team.
• Comfort working with strong acids and solvents.
• Excellent communication and detail orientation.
• Prior lab experience preferred but not required.

Responsibilities

• Preparing and weighing samples for digestion or extraction.
• Data entry and record keeping.
• Facility housekeeping and maintenance.
• Support tasks as needed by the lab team.
• Comply with QA and health & safety plans.
• Other duties as assigned by Lab Leader or Director.

Skills

Basic laboratory techniques

Basic Excel skills

Following directions

Teamwork

Attention to detail

Communication skills

Independent work

Comfort with acids/solvents

Education

High School Diploma

Tools

Excel

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 Full-Time Laboratory Assistant based in our Orange, CA Laboratory, you'll step into the lab where every detail matters. You'll play a key role in prepping and handling samples, keeping records accurate, and maintaining a clean laboratory to support on-time results everyday. You'll collaborate with a strong team of committed professionals, contribute to meaningful scientific work, and grow your expertise in a dynamic, quality-driven environment. The compensation range for this role is $20.00 - $22.00, commensurate with experience, skills, and geographic location. Department: Sample Receiving / PUSH Team Schedule: Monday - Friday, 11:00 am to 7:30 pm

Responsibilities

• Preparing and weighing samples for digestion or extraction as needed (includes but is not limited to: weighing soils, making composites, crushing samples, incremental sampling, product sampling, etc)
• Data entry
• Facility housekeeping/maintenance
• Perform support tasks as needed
• 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
• Basic laboratory techniques (knowledge of PPE, use of balance, pipetting, glassware handling, etc)
• Basic Excel skills required
• Must have ability to follow directions and work in a team setting
• Must be comfortable working with strong acids and solvents
• Excellent communication skills required
• Detail oriented
• Prior Laboratory experience preferred but not required as this is an entry level position
• Knowledge of analytical method, analytical instruments, general lab practices and lab safety
• Ability to work independently and in a team
• Good organizational skills

Work Environment and Physical Requirements

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, moving, and carrying up to 50 lbs Works in an office and/or laboratory environment

Equal Opportunity Statement

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

For more information, visit www.onterris.com.