Junior Mechanical Engineer

Pickering, Ontario, Canada

This role provides engineering support and technical accountability for mechanical systems and components in CANDU nuclear facilities, including pressure boundary, piping, pumps, valves, heat exchangers, supports, qualification and modifications. The incumbent works within a licensed Canadian nuclear environment where nuclear safety, quality, configuration management, human performance and conservative engineering decision‑making are fundamental.

About you

• Bachelor’s degree in an engineering discipline acceptable for progression toward licensure with Professional Engineers Ontario (PEO), or an equivalent academic pathway recognized by PEO.
• Normally 0‑3 years of relevant experience; nuclear, power‑generation, heavy‑industry, co‑op or project experience is an asset.
• Engineering work is performed under appropriate P.Eng. supervision until licensed; active development toward PEO licensure is expected.
• Strong written communication, analytical discipline, willingness to seek guidance and commitment to nuclear safety culture.

PEO minimum licensing context

As of July 1, 2026, PEO requires applicants for P.Eng. licensure to demonstrate the prescribed academic, experience/competency, National Professional Practice Examination and good‑character requirements. The minimum time component for eligible engineering experience is 24 months, but applicants must still demonstrate PEO’s required competencies. This job description does not replace PEO’s current licensing rules.

Why choose AtkinsRéalis?

Wherever you are in your career – and whoever you are – AtkinsRéalis is for you. Here, support and collaboration are a vibrant part of a culture that lets you choose where – and how far – your career can go. Take on projects that push boundaries and drive sustainable impact, surrounded by colleagues who believe there’s no limit to how brilliant you can be. It’s time to join a like‑minded team where you’ll be rewarded, supported, and free to be your kind of brilliant.

Rewards & benefits

Explore the rewards and benefits that help you thrive – at every stage of your life and your career at AtkinsRéalis in Canada.

Enjoy competitive compensation, employee recognition, and a brilliant range of flexible benefits you can tailor to your health, wellbeing, financial and lifestyle needs.

Make the most of diverse opportunities for training and professional development to grow your skills and expertise.

And take advantage of our hybrid working culture and generous time‑off policies to balance a fulfilling career with your personal life.

Be rewarded. Find out more.

We’re AtkinsRéalis, a world‑class engineering services and nuclear organization. We connect people, data and technology to transform the world’s’infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We’re committed to leading our clients across our various end markets to engineer a better future for our planet and its people.