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 Health Scientist, Project Manager - Toxicology and Exposure Science, you'll be responsible for day-to-day management of technical projects in the area(s) of toxicology, risk assessment, industrial hygiene, and exposure assessment. The successful applicant will be a well-organized self-starter with 4-7 years of experience in a scientific consulting discipline with the ability to take projects from initiation to completion under the guidance of senior technical staff. In this position, you will play a pivotal role in the team. While the majority of day-to-day life will be completed in-office, opportunities to play a role in field sampling events may arise. The compensation range for this role is $95,000 to $120,000 in addition to eligibility for annual bonus (up to 12%) based on personal, department, and company performance. The compensation range is commensurate with experience, skillset, and geographic location. Relocation may be available for the selected candidate. This position will be located in our Little Rock, Arkansas office (company Headquarters). To thrive in this role, you'll be comfortable taking ownership of the following responsibilities: Manage the full life-cycle of technical projects within the Health Sciences division, including those in the risk assessment, exposure assessment, and legal industries. Learn to act as an intermediary between senior technical experts and clients with responsibility for project completion, on-time, on-budget, and with technical accuracy. Opportunity to work on, lead, and manage projects critical to the Health Sciences team and provide input into broader business strategy for the division. Learn to develop and drive business growth through technical excellence, growth of client relationships, and scientific visibility. Expand upon your technical skillset with transferable, multi-disciplinary technical skills. Your Expertise and Skills These requirements reflect the knowledge, skills and abilities that help you do your best work here. Ability to travel up to 15% Ability to interface with cross-functional teams and all levels of personnel/management Academic degree in Biology, Environmental Engineering, Environmental, Health and Safety, Industrial Hygiene, Chemistry, Chemical Engineering, Toxicology or other related science 4 - 7 years of related experience in scientific consulting Ability to work independently and with minimal supervision Ability to establish and maintain effective working relationships within a matrix reporting structure 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 for qualified individuals with disabilities, consistent with applicable law, to support performance of the essential functions. Keyboarding and typing Ability to read effectively from a computer screen, sampling device and/or paper copy Ability to handle a large volume of work and perform multiple tasks in a fast-paced environment; Long hours involving overtime and weekends, as necessary Sitting, standing, and walking If desired, employee may participate in Emergency Response or Field Sampling, which in that case would bring in the below components. Lifting up to 50 pounds several times a day Overhead lifting of over 20 pounds Bending, stooping, climbing ladders and crawling Frequent, unscheduled travel for several periods of time Ability to drive non-commercial vehicles Rarely may work shifts of up to 24 hours in duration Dress out in physically demanding personal protective equipment (PPE) for site entry at

HAZWOPER

sites as required under 29 CFR 1910.120 Wear half-face and full-face air purifying respirators (APR) as required. Works primarily in an office environment when not performing field-related work; May work outdoors and may be exposed to hot and cold environments and extreme weather conditions including sunlight, rainy, and windy conditions; Encounter environments presenting physical hazards of uneven ground, standing water, ditches, dusty conditions, rapidly moving transportation and remediation equipment, and physical stress associated with the use of PPE; May work at client sites in or near various chemical producing, manufacturing, or refining industries; May work at altitudes greater than 5,000 feet; May work on land, sea, or air; May work in a setting with physical and chemical hazards, and Frequent, extended travel May occasionally work shifts up to 24 hours in duration #INDONT #LI-LK1 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. At Onterris, we take on complex challenges with purpose and momentum, alongside teams that lead with integrity, deliver together, and invest in your growth. "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