Environmental Professional (Scientist, Geologist, Engineer)

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. Our Project Environmental Professional (Scientist, Geologist, Engineer) position will support project work for a large oil/gas client located in Colorado centering around decommissioning, remediation, and regulatory compliance. This position will have a combination of field/office and will have a strong regulatory compliance aspect. It is fast-paced, technical in nature, and involves regulatory understanding. The annual compensation range for this role is $70,000 to $95,000, commensurate with experience, skills, and geographic location. To thrive in this role, you’ll be comfortable taking ownership of the following responsibilities: Provide support to project management teams moving oil and gas sites through the decommissioning and remediation process towards regulatory closure. Prepare and manage regulatory reporting deliverables, including Colorado ECMC Form 27 Site Investigation and Remediation Workplans, ensuring technical accuracy, completeness, and regulatory compliance. Manage multiple project tasks simultaneously; serve as a field lead on select projects and mentor technicians and staff. Lead and support environmental field activities, including soil and groundwater sampling, subsurface investigations, and data collection. Oversee drilling subcontractors, maintain accurate boring logs, and support proper monitoring well design and installation. Apply relevant regulatory standards and technical guidance to project work. Track project hours and manage time effectively to meet scope, schedule, and budget expectations. Communicate proactively with project managers regarding schedule, budget, or technical challenges. Interface with clients to provide project updates and support client needs. Assist with cost proposal development and scope definition based on project requirements. Maintain confidentiality and adhere to company policies and procedures. Follow company safety programs and OSHA regulations; participate in required safety training. Perform other duties as assigned. Your Expertise and Skills These requirements reflect the knowledge, skills and abilities that help you do your best work here. Bachelor’s degree in Geology, Environmental Science, Engineering or related field. Master’s a plus. 4–7+ years of related environmental experience. Experience with soil and groundwater sampling and drilling oversight. Valid driver’s license; ability to pass background, MVR, and drug screening. 40‑hour OSHA HAZWOPER (current 8‑hour refresher). Proficiency with Microsoft Office / Google Suite; familiarity with AutoCAD, ArcGIS, or similar tools. Strong technical writing, analytical, organizational, and time‑management skills. Effective verbal and written communication; ability to work independently and collaboratively. Ability to perform outdoor field work, lift up to 50 lbs., and travel locally with occasional overnight stays. Preferred PG or PE license. Experience with groundwater fate and transport modeling. Familiarity with Colorado ECMC regulations. Form 19 and Form 27 Experience a plus. #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 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