Let’s find your next opportunity
AI Assistant: {{ chat.assistant.message }}
Suggested roles matches
Sort By
{{ job.job_posting_title
}}
{{ job.job_posting_title }}
{{ job.is_cms_job ? (job.cities.split(';').length > 1 ? 'Various locations' : job.location_mappings[0]) : (job.location_mappings.length > 1 ? 'Various locations' : job.location_mappings[0]) }}
We are sorry there are no jobs that match your exact criteria. Try a new search term, or use the filters to continue browsing for available opportunities.
Suggested roles matches
{{ job.title }}
{{ job.title }}
{{ [job.cities[0], job.regions[0], job.countries[0]].join(', ') }}
Various locations
We are sorry there are no jobs that match your exact criteria. Try a new search term, or use the filters to continue browsing for available opportunities.
Let’s find your next opportunity
{{ job.job_posting_title
}}
{{ job.job_posting_title }}
{{ job.is_cms_job ? (job.cities.split(';').length > 1 ? 'Various locations' : job.location_mappings[0]) : (job.location_mappings.length > 1 ? 'Various locations' : job.location_mappings[0]) }}
On this page
Mississauga, Ontario, Canada
Overview
CANDU Energy Inc./AtkinsRéalis Nuclear Inc. is actively seeking qualified Senior Mechanical Machine CAD Designer to support engineering roles for nuclear projects in major areas, such as, new build in the province of Ontario, international new builds, refurbishment, and continuous plant operation support modifications for nuclear power plants.
Your role
This position requires working on fast paced technically complex projects in the nuclear industries. Typical duties and essential functions will include but not be limited to the preparation, design, modification, coordination, and/or review of the following:
- Prepare electronic documents in AutoCAD, Microstation, Solid Edge, SolidWorks and other relevant CAD tools.
- Create precise 3D models for design and visualization, using Model-Based Definition (MBD) to define all product specifications.
- Follow client driven file management system for document storage.
- Prepare engineering deliverables for both nuclear and conventional systems in accordance with AtkinsRéalis Nuclear Inc./Candu Energy Quality Assurance Programs and project requirements.
- Apply relevant Codes & Standards and regulatory requirements and coordinate with design team to ensure compliance.
- Interface with Engineering teams, throughout the lifecycle of the design project (i.e., from preliminary and conceptual engineering to detailed design, implementation and close-out) to provide practical and effective solutions as per requirements.
- Must be "Team" oriented with a demonstrated ability to work well with other and promote a positive work environment.
Location
Mississauga, Ontario, Canada
Job Type
Full time
Ref
R-149152
Salary range
-
About you
- College diploma or equivalent work experience with a minimum of 9 years in mechanical design and drafting.
- Individuals are expected to have advanced knowledge of 2D and 3D CAD applications. Such as AutoCAD or MicroStation and SolidWorks.
- Familiar with machine design, GD&T (including ASME Y14.5 standards, symbol interpretation, and tolerance analysis), and welding principles (MIG, TIG, arc welding, and welding symbol representation).
- Good understanding of mechanical design principles. Understanding manufacturing processes (machining, welding, and additive manufacturing) and their influence on design decisions.
- Revise existing drawings/3D models (relative to the discipline) from detailed verbal or written instructions, and/or marked up drawings.
- Prepare drawings/3D models (relative to the discipline) of high complexity. As requested, implement any necessary design changes, calculations and materials selection – with minimal assistance from more senior staff.
- Ensure CAD file configuration management and storage are as per procedure.
- ASME Code knowledge considered an asset.
- Ability to take marked up engineering drawings and incorporate changes into drawing and modelling files.
- Recognized as a technical leader, providing mentoring and technical leadership and supporting larger or more complex projects through subject‑matter expertise.
- Develops and maintains CAD procedures and standards to support quality and consistency.
- Plans and organizes work, contributes to estimates and schedules, and proactively supports on‑time, on‑budget deliver.
- Excellent interpersonal skills with the ability to work with staff in a team environment as well as independently.
- Perform other related duties as required.
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.
Reward & 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.
Make it brilliant, a career with AtkinsRéalis
Our supportive, collaborative culture inspires us as a global community every day.
Watch this short film and imagine what you could achieve here, too.
About AtkinsRéalis
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.
Additional information
AtkinsRéalis cares about your privacy. AtkinsRéalis and other subsidiary or affiliated companies of AtkinsRéalis (referred to throughout as "AtkinsRéalis") are committed to protecting your privacy. Please consult our Privacy Notice on our Careers site to know more about how we collect, use, and transfer your Personal Data.
By submitting your personal information to AtkinsRéalis, you confirm that you have read and accept our Privacy Notice.
Appropriate accommodation will be provided upon request throughout the recruitment and hiring process as required by Company policy and the Accessibility for Ontarians with Disabilities Act (AODA).
Successful applicants will be notified about AtkinsRéalis' accommodation policies at the time the employment offer is extended, and the information will be shared with new personnel during the onboarding process.
Related jobs
Related blogs
From global adventures to nuclear innovation: Keith’s story
Meet Keith, who’s helping shape the UK’s clean‑energy future by bringing global, cross‑discipline experience to one of the most exciting and fast‑growing areas of our business.
Leading fire protection innovation at AtkinsRéalis: Aaron’s journey and vision
As the Director of Fire Protection for Canada at AtkinsRéalis, I have the privilege of leading a team of nearly 30 specialists and engineers across the country. Every day, I work to unify our national expertise and elevate our technical excellence across sectors such as nuclear, defence, power and energy, transportation, and more.
From apprentice to assistant design engineer: Ciara’s journey at AtkinsRéalis
From starting out as an apprentice to becoming an Assistant Design Engineer at AtkinsRéalis, my journey has been shaped by hands‑on project experience, continuous learning, and the support to grow at every step. Here’s how I built a career I love.
Making work, parenting and career progression work together
From career progression to caring responsibilities, Maria’s journey highlights the power of trust, empathy, and an inclusive workplace culture.
Building a real career through an apprenticeship
Join me as I share my journey from Degree Apprentice to Graduate Quantity Surveyor at AtkinsRéalis — and show how an apprenticeship can build real skills, confidence, and a sense of purpose
Choosing an apprenticeship with purpose - my journey
I’m sharing how my apprenticeship at AtkinsRéalis helped me build in‑demand skills, gain real‑world experience, and kick‑start a meaningful engineering career with purpose.
Finding my place in the environment: a journey through people, places, and purpose
From anthropology to infrastructure, my journey hasn’t been traditional — but it’s been meaningful. Here’s how I found a role where people come first.
Building tomorrow's roads: a journey through civil engineering excellence
See how purpose-driven engineering transforms travel and strengthens the fabric of our communities.
Why project managers are essential to Canada’s growing transportation and energy sectors
Today, demand for project management jobs in Canada is rising rapidly, driven by the scale and complexity of infrastructure and energy projects nationwide.
Engineering jobs in Ontario that let you innovate, create, and impact
Ontario is one of Canada’s most exciting places to build a career in engineering, a province where bold infrastructure, clean energy transformation, and groundbreaking transit development are reshaping the way communities live, move, and thrive.
Building tomorrow's infrastructure: A journey of innovation and impact in transportation
Learn how Ati builds meaningful impact at AtkinsRéalis by shaping smarter, more connected transportation infrastructure.
Coming home: Why I returned to AtkinsRéalis - a story of culture, values, and growth
Discover how a strong culture and shared purpose make AtkinsRéalis a workplace where careers flourish.