
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 Sample Control Assistant in our El Dorado Hills, CA Laboratory, you'll be responsible for ensuring that samples received, documented and stored correctly. Sample Control Assistants are responsible for notifying the Group Leader to receipt, volume, preservation, labeling, or other discrepancies that could affect the laboratory’s ability to meet the expectations of our clients. 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 ideal candidate will have experience in working under possibly hazardous conditions (e.g. pathogens or chemicals). They will be well-trained to maintain safety conditions and will be passionate for doing work that makes things move forward.
The compensation range for this role is $19.00 to $21.00/hour, commensurate with experience, skills, and geographic location.
Assignment Duration: Temporary Position 4-6 months
Schedule: Part-Time, 20 hours/week Or Full-Time may be available based on business needs
To thrive in this role, you’ll be comfortable taking ownership of the following responsibilities:
Log-in samples
Disposal of sample upon project completion
Shipment of bottles and sample kits to clients
Cleaning and Shipping of coolers
Monitor temperatures of all refrigeration units
Perform all job duties in accordance with SOPs and laboratory health and safety policies
Comply with Enthalpy’s Quality Assurance Program
Comply with Enthalpy’s Health and Safety Plan
Other duties as assigned
These requirements reflect the knowledge, skills and abilities that help you do your best work here.
High school diploma or equivalent
Some lab experience is preferred but not required
Preferred Skills
Knowledge of general lab practices and lab safety
Able to multi-task and communicate effectively (both oral and written)
Able to work independently and make sound decisions
Well organized and have an attention to detail
Standing or sitting for long periods of time.
Lifting or moving objects up to 50lbs.
Works in an office and/or laboratory environment
May spend extended amounts of time in sample fridge/freezer.
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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.

Montrose Environmental was one of the first to see environmental responsibility as not just an imperative but as a strategic asset. And we’re well ahead of the curve in applying the latest technologies in practical ways to solve difficult environmental challenges.
How? By building a leadership team with exceptional depth of experience and breadth of expertise. By bringing together a wealth of local knowledge that allows us to address homegrown issues across multiple locations. By removing operational roadblocks that stand in the way of streamlined, hassle-free, nation-spanning implementation. And by investing in assets and technologies that will keep us out in front of emerging environmental concerns for years to come.
In short, we approach our job the same way our clients approach theirs: With a sense of urgency, a commitment to adding value, and a stubborn refusal to settle for second-best. All to help the people we partner with identify and seize opportunity.