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

To thrive in this role, you’ll be comfortable taking ownership of the following 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

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

• 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

Preferred Skills

• 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

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 environmental responsibility and human progress are fundamentally connected. Our scientists, engineers, field teams and consultants apply systems thinking that unites science, data and practical expertise to deliver solutions that strengthen our clients’ resilience, mitigate risk and protect the air, water and soil that sustain communities, while uncovering responsible paths forward for planet and progress. For more information, visit www.onterris.com.

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.