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Canadian Nuclear Laboratories

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Delivering the science of solutions.

Chalk River, Ontario

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Research Services
1,001–5,000 people

About

Canada's premier nuclear science and technology organization. CNL develops peaceful and innovative applications from nuclear technology through its expertise in physics, metallurgy, chemistry, biology and engineering. Highly skilled employees enthusiastically deliver a range of nuclear services ranging from research and development, design and engineering to specialized technology, waste management and decommissioning. Canadian Nuclear Laboratories is actively working to strengthen existing relationships and forge new ones with government, with industry, and with academia. https://www.youtube.com/watch?v=3HWf13MTqFM

Open positions

Internal Dosimetry Technologist

On-site · Chalk River

Do you enjoy solving complex scientific puzzles that help protect people? Are you energized by work where precision, analytical thinking, and innovation directly contribute to radiation safety and operational excellence? Do you thrive in a laboratory environment where no two challenges are exactly the same? If you answered yes, then this may be the job for you! Our Chalk River location is looking for an Internal Dosimetry Technologist to play a vital part in supporting internal radiation dose assessment programs through in vivo and in vitro bioassay analysis, delivering accurate results that…

Red Seal Instrument and Control Technician

On-site · Pinawa

Are you a skilled troubleshooter who loves working with precision instruments and keeping critical systems performing at their best? If you are, we are looking for a dedicated Instrument Technician who’s excited by hands‑on technical work, complex diagnostics, and being a key player in maintaining safe, reliable operations. Do you want to work in an environment where you will be responsible for installing and servicing various plant systems, including safety and security, energy delivery (hydraulic, pneumatic and electrical), communication, and process control systems? If so, our Whiteshell…

Security Systems Instrumentation Technician

On-site · Pinawa

Are you looking for a role that will challenge you and let you apply your hands‑on technical skills every day? Can you see yourself maintaining, repairing, calibrating, and installing security communications, assessment, detection, server/computer networks, and operator interface systems that keep our site safe and compliant? Do you like troubleshooting complex software and hardware issues and making improvements that increase reliability and uptime? If you answered yes, then this may be the job for you! What will you be doing!  Performing maintenance, repairs, calibrations, and installatio…

Internal Dosimetry Technologist

On-site · Chalk River

Do you enjoy applying advanced laboratory techniques to solve complex scientific challenges? Are you energized by knowing your work directly supports the health and safety of workers in a highly specialized environment? Do you thrive in a role where precision, innovation, and continuous learning go hand in hand? If you answered yes, then this may be the job for you! Our Chalk River location is looking for an Internal Dosimetry Technologist to contribute to internal radiation dose assessments through in-vivo and in-vitro bioassay analysis, helping ensure accurate monitoring and reporting of ra…

Civil Engineer

On-site · Pinawa

Are you looking for a role that will challenge you? Would you like to make a difference in the Environment? If you answered yes, our Whiteshell Laboratories (WL) site located near Pinawa, Manitoba, is looking for a Civil Engineer . Can you see yourself  supporting for the development of preliminary, conceptual and detailed design of civil structures, as well as being the subject matter expert (SME) support for civil and structural design work, including project engineering and infrastructure demolition engineering activities that may present themselves during the execution of decommissioning…

Electrical Design Technician

On-site · Pinawa

Are you looking for a role that will challenge you? Would you like to make a meaningful difference in the environment? Can you see yourself supporting the design of electrical power systems that directly contribute to the safe decommissioning and operation of facilities at the Whiteshell site? Do you enjoy creating detailed engineering drawings, solving technical problems, and collaborating within a multidisciplinary team? If you answered yes, our Pinawa, Manitoba, location is looking to fill the role of Electrical Design Technician . Apply today! What will you be doing! Being assigned as a…

Millwright

On-site · Pinawa

Are you looking for a role where you will provide mechanical trades services by troubleshooting, repairing, installing, and fabricating mechanical equipment and repairing, modifying, and installing new or existing structures? If so, our Whiteshell Laboratories (WL) site is looking for a Millwright to support the day-to-day operation of CNL industrial equipment and ensure customer commitments are met. Apply today! What will you be doing! Performing tasks based on the Red Seal Occupational Analysis. Performing routine and non-routine preventative and corrective maintenance to ensure consiste…

Mechanical Engineer

On-site · Pinawa

Are you looking for a role that will challenge you? Would you like to make a meaningful difference in the environment? Can you see yourself designing mechanical and process systems, supporting decommissioning activities, and ensuring high‑quality engineering outcomes for a unique nuclear site? Do you enjoy applying your technical expertise, collaborating with multidisciplinary teams, and supporting critical projects that matter to Canadians? If you answered yes, our Pinawa, Manitoba, location is looking to fill the role of Mechanical Engineer . Apply today! What will you be doing! Preparing…

Civil Design Technician

On-site · Pinawa

The Civil Design Technician will work in a multi-disciplinary branch providing integrated project management, engineering, design and construction services for nuclear and non-nuclear facilities at the Whiteshell (WL) site. Under general direction from the Branch Manager, the employee will contribute to the development of conceptual, preliminary and detailed designs of civil, building services, outdoor services, architectural, structural and/or HVAC design.  Can you see yourself filling this role? If you answered yes, then this may be the job for you! What will you be doing!   Leading desi…

Electrical Engineer

On-site · Chalk River

Are you looking for a role that will challenge you? Can you see yourself leading complex electrical design work while overseeing job execution from concept through commissioning? Does the idea of managing design delivery, providing technical oversight, and ensuring systems meet cost, quality, and schedule expectations excite you? If you answered yes, then this may be the job for you—apply today! Our Chalk River location is looking for an Electrical Engineer to provide design authority oversight, develop engineering standards, and deliver safe, reliable electrical solutions. What will you be…

Instrumentation Technologist

On-site · Chalk River

Do you enjoy work where accuracy and precision directly impact safety and regulatory compliance? Do you feel confident working with specialized electronic or instrumentation equipment and troubleshooting issues on your own? If you answered yes, then this may be the job for you! Our Chalk River location is looking for an Instrumentation Technologist to deliver specialized electronic and instrumentation services with the Radiation Protection Department. If you answered yes, then this may be the job for you!   Apply Today! What you will be doing!   Performing calibration, testing, performance…

Environmental Monitoring Technician

On-site · Chalk River

Are you passionate about the environment and the responsible management of natural resources? Do you enjoy combining fieldwork, data collection, and analysis to solve real-world environmental challenges? Would you like to gain hands-on experience supporting environmental monitoring activities that help protect people, ecosystems, and the environment? If you answered yes, then this may be the job for you!  Our Chalk River location is looking for an Environmental Monitoring Technician to support monitoring activities for the Near Surface Disposal Facility. Apply today!     What you will be doi…

Research Technologist

On-site · Chalk River

Are you looking for a role where you can combine technical expertise with leadership and project delivery? Can you see yourself mentoring team members, providing expert guidance, and driving complex technical work to successful outcomes? If you answered yes, this may be the job for you. Apply today, as our Chalk River location is looking for a Research Technologist to provide advanced technical expertise, lead projects and teams, and support the successful execution of important organizational objectives.  What you will be doing!   Planning, organizing, and conducting complete complex proje…

R&D Technologist - Mechanical

On-site · Chalk River

Do you enjoy working with advanced materials and cutting-edge nuclear technologies? Are you looking for a role where you'll conduct experimental research, perform irradiation and high-temperature materials testing, and assess material performance for Small Modular Reactors (SMRs) and Generation IV reactor concepts? Would you like to contribute to the development of the next generation of nuclear reactors while using specialized mechanical testing equipment and high-temperature ovens? If you answered yes, our Research and Development Technologist - Mechanical role is for you; apply today ! Wh…

Radiobiology Technologist

On-site · Chalk River

Can you see yourself contributing to vital research that helps us better understand how ionizing radiation affects biological systems? As a Radiobiologist Technologist , you’ll support experiments involving cell culture, molecular extractions, imaging, and next‑generation sequencing while learning and applying advanced laboratory techniques. You’ll maintain equipment, manage lab inventories, document results, and help develop and follow SOPs that keep research running safely and efficiently. If you're passionate about hands‑on science and want your work to directly support impactful radiobiol…

Radiochemical Technologist, Actinium Operations

On-site · Chalk River

Are you looking for a hands‑on role where you can directly contribute to the production of life‑saving medical isotopes? Do you enjoy working as part of an operations team, using specialized processes and raw materials within a highly regulated nuclear environment? As an Actinium Operations Radiochemical Technologist, you will support the manufacturing and processing of Ac‑225 while collaborating with teams across multiple facilities and divisions at CNL. If you answered yes, this may be the job for you—apply today! What will you be doing! Training and working under minimal supervision with…

Mechanical Engineer

On-site · Chalk River

Are you looking for a role that will challenge you? Can you see yourself leading the design and development of innovative equipment and tooling for low-access, high-radiation environments while guiding projects from concept through to field deployment? If you do, as part of a multidisciplinary team, you will apply your engineering expertise to solve complex technical challenges, support customers, and mentor fellow engineers and technical staff. If this sounds like the opportunity you've been looking for, apply to our Mechanical Engineer role today! What will you be doing! Working as part o…

Mechanical Engineer (New Grad)

On-site · Chalk River

Are you a recent graduate?  Maybe looking for that role . that will challenge you?  Do you enjoy designing innovative mechanical equipment and tooling while seeing your ideas move from concept through testing and implementation? As part of a multidisciplinary team, you will contribute to the design, development, procurement, testing, and delivery of specialized tooling and components that support science and technology projects across the Canadian nuclear industry. If you are excited by hands-on engineering, project management, and solving complex technical challenges that make a real impact…

Environmental Technologist

On-site · Chalk River

Are you looking for a role that will challenge you and let you contribute directly to environmental research? Do you enjoy collecting, processing, and analyzing environmental samples in both field and laboratory settings? Does the idea of performing technical work that supports groundwater and hydrogeology research excite you? If so, our team is seeking an Environmental Technologist who can support analyses involving both radiological and non‑radiological parameters—apply today! What you will be doing!   Performing environmental laboratory work to characterize solid and aqueous samples for…

Radiopharmaceutical Technologist

On-site · Chalk River

Are you looking for a role that will challenge you and allow you to contribute to advancing radiopharmaceuticals and targeted cancer therapies as a Radiopharmaceutical Technologist ? Can you see yourself working alongside an experienced team of scientists and technologists to support radiolabelling chemistry, product testing, radioanalytical analysis, and preclinical research in a dynamic and growing Contract Research Organization? At CNL's Chalk River Laboratories, you'll play a key role in delivering innovative commercial and R&D projects that advance isotope production and the development…