Are you driven to understand how contaminants move through complex groundwater systems and want your work to directly influence environmental remediation in Canada? As a hydrogeochemist in the Environment and Waste Technologies Branch, you’ll lead and contribute to research that advances site close‑out and deepens national knowledge of radionuclide transport. Your work will span field studies, laboratory investigations, and analytical modelling across diverse terrains. If you’re eager to apply your expertise to projects that create measurable environmental impact, this role offers a meaningful place to make a difference. Apply today! What will you be doing Executing Research Projects: Developing research proposals and detailed project plans. Developing project schedules and budgets. Providing expert technical input to colleagues, management, and external customers. Supervision: Providing technical direction and oversight to laboratory and field technologists, as well as other scientists. Ensuring all work is completed safely and in accordance with procedures. Guiding junior scientists and technologists within project teams. Communication: Communicating project progress and results to relevant stakeholders. Communicating research or scientific findings to external customers. Preparing scientific and technical reports, including peer‑reviewed manuscripts. Other duties as assigned by your manager. What We Are Looking For Education Postgraduate degree in Earth or Environmental Sciences, with appropriate specialization in hydrogeology and/or environmental geochemistry. Licensed practicing Geoscientist with the Professional Geoscientists of Ontario. Minimum M.Sc. requirement; Ph.D. considered an asset. Experience Minimum of 15 years of experience in a relevant field. Experience in the application of environmental isotopes or radiochemical analysis (focus on H‑3, C‑14, Sr‑90 and Cs‑137) in research activities. Experience in designing, planning and conducting research projects in field and laboratory settings. Experience in preparing and submitting successful research proposals. Experience managing projects, including reporting, schedule & budget monitoring. Experience communicating with stakeholders and presenting research to audiences with varying degrees of technical expertise. Experience supervising and mentoring laboratory and field technologists and junior professionals. Hydrogeological, geochemical, and reactive transport modelling experience considered an asset. Experience communicating research or scientific findings to external customers. Knowledge, Skills & Abilities Knowledge of environmental radiochemistry, environmental pathways modelling and regulatory requirements for nuclear facilities. Demonstrated skills in preparing written scientific and technical reports, including publication in peer‑reviewed journals. Knowledge of safe laboratory and fieldwork practices. Ability to work effectively in multidisciplinary team environments. Security Clearance Eligibility Required Reliability Status requiring a minimum of 3‑5 years of verifiable history in Canada, Australia, New Zealand, the United States and/or the United Kingdom. CNL implements security screening in accordance with Treasury Board of Canada Secretariat standards. Working Conditions Working schedule: Five (5) days per week, seven and a half (7.5) hours per day for a thirty‑seven and a half (37.5) hour work week. This position is part of the CRPEG Union and is governed by the terms and conditions outlined in their Collective Agreement. Some field and laboratory work will occur in various weather conditions. Controlled areas may require specialized personal protective equipment. Work base: Chalk River, with potential off‑site work at other CNL nuclear facilities. Why CNL? We’re reinvention as industry leaders—pioneering solutions to the problems that matter most. From clean nuclear and hydrogen energy technologies to targeted cancer treatments and environmental remediation, we are driven by impact, innovation, and purpose. What We Offer: A Total Rewards Package Paid time off: vacation, sick, personal, and floater days. Benefits effective Day One with no waiting period. Tuition support to help you keep learning and growing. Defined‑benefit or defined‑contribution pension plan, depending on your employee group. Our Priorities Delivering clean energy for today and tomorrow. Restoring and protecting the environment. Contributing to the health of Canadians. Location: Fully Onsite This role is a fully onsite position at CNL’s Chalk River Laboratory site in Ontario. It offers a beautiful natural setting with forests, lakes, and wildlife, providing a great work‑life balance. Commitment to Equity, Diversity & Inclusion We celebrate and welcome employees, stakeholders, and partners of all backgrounds and identities. We uphold workplace culture grounded in Respect, Teamwork, Accountability, Safety, Integrity, and Excellence. CNL is an equal opportunity employer. If you require accommodation, please email Indigenous Acknowledgement CNL operates on traditional Indigenous lands and waters and acknowledges the rights and titles of First Nations, Métis, and Inuit communities. #J-18808-Ljbffr