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Added 1 hour ago
ES
Lead AI Engineer
EPAM Systems
Canada
- Full-time
We are looking for a Lead Software Engineer (7+ years of experience) to join a high-caliber product team building a next-generation AI-powered financial assistant platform. In this role,…
Added 3 hours ago
W
Principal Process Automation Engineer
Worley
Toronto, ON
- Full-time
…and digital experts dedicated to solving the world’s critical infrastructure, environmental, energy, and resource…
Added 3 hours ago
TT
Senior/Staff Software Engineer
True Talent Solutions Partners
Canada
- $210,000 to $260,000 USD / year
- Full-time
…You will help shape experimental products and foundational infrastructure, taking ownership across the product…
Added 3 hours ago
K
Senior Software Engineer, Payments
Kindsight
Remote, Canada
- $120,000 to $150,000 CAD / year
- Full-time
- Remote
We are seeking a Senior Software Engineer, Payments to join a newly forming Payments Engineering team and take meaningful ownership of Kindsight's next-generation Payments Platform.
Added 3 hours ago
IC
Cloud Infrastructure & DevSecOps Engineer
InfoTrack Canada
Toronto, ON
- $130,000 to $150,000 CAD / year
As the Cloud Infrastructure and DevSecOps Engineer, you will own the end-to-end cloud infrastructure and deployment pipeline for InfoTrack Canada. You will unblock critical environment…
Added 4 hours ago
X
Cybersecurity Engineer
Xanadu
Toronto, ON
- Full-time
…technical operations. You will work at the intersection of our IT infrastructure and our core R&D teams to ensure our intellectual property is protected without slowing down innovation.…
Added 4 hours ago
X
Cloud Engineer
Xanadu
Toronto, ON
- Full-time
As a Cloud Engineer, you will contribute to the cloud platform and the infrastructure which hosts all our internal projects workloads. You will work on a team to support and maintain…
Added 4 hours ago
X
Senior Network Engineer
Xanadu
Toronto, ON
- Full-time
As a Senior Network Engineer, you will own, secure, and modernize our enterprise network infrastructure across a multi-vendor environment. In this role, you will bridge core network…
Added 4 hours ago
TR
Building Operator
Toronto Refugee Hiring Event
Toronto, ON
- Full-time
…direct access to our Best-in-Class services, including ESG, Security Consulting, Workplace Strategy, and Workplace…
Added 8 hours ago
S
DevOps Engineer
Synechron
Halifax, NS
- $110,000 to $115,000 CAD / year
- Full-time
Collaborate closely with Development, Security, Architecture, and Infrastructure teams to deliver robust solutions
Added 9 hours ago
AS
Senior Data Developer
AgileGrid Solutions
Canada
- Full-time
We are seeking a highly skilled Senior Data Developer (Engineer) to join our dynamic team. This role is instrumental in establishing a robust data foundation for Contact Distributor, our…
Added 11 hours ago
TI
Cyber Security Specialist
Themesoft Inc.
Toronto, ON · North York, ON
- Contract
Technical Security Research Engineer to research, prototype, evaluate, and operationalize emerging cybersecurity capabilities. This is a hands-on role for someone who can move from a…
Added 12 hours ago
R
Founding DevOps/SRE Engineer
Requesty
London, ON
- Full-time
You understand that how to build security practices into systems in a way that protects the users but doesn't slow them down.
Added 12 hours ago
TC
Desktop Support Engineer
Tata Consultancy Services
Montreal, QC
- Full-time
…clients to transform themselves across the full AI stack, from infrastructure to…
Added 12 hours ago
BP
Senior Project Engineer
Bunch Projects
Calgary, AB
- Full-time
We are seeking a senior Project Engineer to join our design and engineering team. The successful candidate will provide technical and project support across cross-functional teams,…
Added 17 hours ago
S
Building Coordinator
SYSTRA
Montreal, QC
- Full-time
…a new railway line, increasing the capacity of the existing infrastructure, privatization of a…
Added 22 hours ago
W
Intermediate Electrical and Instrumentation Engineer , Nuclear
Worley
Markham, ON
- Full-time
Worley is seeking a Instrumentation Engineer in Markham, Ontario with demonstrated experience in the Ontario nuclear sector (OPG or Bruce Power). You will be supporting complex I&C designs…
Added 22 hours ago
A
Vice President, EC6 Product Development
AtkinsRéalis
Mississauga, ON
- Full-time
Added 1 day ago
ES
Senior Product Manager | Applied AI
EPAM Systems
Canada
- Full-time
…ability to build, train or tune machine-learning models as an ML engineer or data scientist…
Added 1 day ago
ES
Compute Platform SRE Lead
EPAM Systems
Canada
- Full-time
Ensure security and vulnerability compliance, including user management and certificate lifecycle management
Added 1 day ago
ES
Senior Cloud & Infrastructure Engineer (Azure & Terraform)
EPAM Systems
Canada
- Full-time
We are looking for a senior-level Infrastructure Engineer with deep expertise in Azure Cloud architecture and production-grade Terraform development. You will own the creation,…
Added 1 day ago
KI
Cloud Engineer 2, Site Reliability Engineering
Kinaxis Inc.
Ottawa, ON
- Full-time
The Site Reliability Engineering team owns the delivery, operation, and monitoring of Kinaxis products and cloud infrastructure in production. We are focused on keeping services reliable,…
Added 1 day ago
L
Principal AI/ML Engineer
lululemon
Vancouver, BC
- Full-time
As a Principal AI/ML Engineer, you will define and drive implementation approaches for enterprise-scale AI initiatives that transform how lululemon operates and delivers value. You will…
Added 1 day ago
S
Post‑Quantum Research & PKI Cryptography Engineer
Securetron
Canada
- Full-time
Securetron is seeking a Post‑Quantum Research & PKI Cryptography Engineer to lead research, prototyping, and implementation of quantum‑resistant cryptographic workflows within our PKI…
Added 1 day ago
MC
Platform Engineer - Azure (35991)
Myticas Consulting
Canada
- Contract
…architects, delivery leads, and application teams to deploy infrastructure, support integrations, resolve issues, and document completed…

AtkinsRéalis

Specialist Engineer - Mechanical

Mississauga, ON, Canada

Full-time

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Job details

Job type: Full-time
Apply by: Dec 31, 2026
Experience: Degree in Mechanical Engineering from an accredited University with a minimum of 15 years of relevant experience (minimum 10 years in the nuclear industry).
Posting language: English
Posted: Oct 8, 2026

Original job description

Job Description

Overview

AtkinsRéalis is looking to hire a Senior Mechanical Engineer. This position requires experienced individuals who are self-starter capable of working independently and leading/supervising junior engineers. The individuals will work in a fast-paced team environment performing engineering services for Nuclear Power Plants within a matrix organization.

Your role

Prepare and review design basis documents for both nuclear and conventional systems of the nuclear power station e.g. design specification, over-pressure protection reports and design reports, Drawings, BOMs, SCL, etc.
Oversee the preparation of Mechanical and Piping Structures, Systems, and Components (SSCs) Design Packages from Conceptual Design to Available For Service (AFS) and Close Out.
Train, mentor and provide technical guidance to junior staff.
Support Engineering Management with timely updates on engineering progress, performance and staffing needs.
Directly interface with Customer’s engineering representatives.
Ensure that applicable standards and regulatory requirements and met.

About you

Required qualifications:

Degree in Mechanical Engineering from an accredited University with a minimum of 15 years of relevant experience (minimum 10 years in the nuclear industry).
Registered Professional Engineer in the Province of Ontario, and member in good standing. o Working knowledge of pressure boundary codes and standards, including CSA N285.0, ASME Section III Division 1 and ASME B31.1.
Experience in power plant equipment, including but not limited to equipment in the Nuclear Island, Turbine Island, Balance of Plant, Auxiliary Systems (HVAC, Compressed Air Systems, Water Systems, Chillers, etc.).
Qualified Specialized Professional Engineer to ASME Section III, Div.1, Appendix XXIII or qualified for certification.
Experience interfacing with CNSC and TSSA including preparing correspondence letters, TSSA registration and re-conciliation packages, code classifications and memos.
Excellent written and oral communication skills.
Results-driven individual with strong interpersonal skills that thrives in a dynamic, project-delivery environment.

Additional, preferred qualifications:

Knowledge of dimensioning and tolerancing ASME Y14.5 standard is an asset.
Working knowledge of major nuclear operator’s Engineering Change Control process.
Presentation skills and public speaking abilities is an asset.
Knowledge of seismic and environmental qualification methods and processes is an asset.
Security Clearance is a condition of employment.

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.

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.

Find out more.

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.

Worker Type

Employee

Job Type

Regular

At AtkinsRéalis, we seek to hire individuals with diverse characteristics, backgrounds and perspectives. We strongly believe that world-class talent makes no distinctions based on gender, ethnic or national origin, sexual identity and orientation, age, religion or disability, but enriches itself through these differences.

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More about this job

Responsibilities

The Specialist Engineer will prepare and review design basis documents for nuclear and conventional systems while overseeing the development of mechanical design packages. They will also provide technical guidance to junior staff and interface directly with customer representatives to ensure regulatory compliance.

Requirements

Candidates must hold a degree in Mechanical Engineering and be a registered Professional Engineer in Ontario with at least 15 years of relevant experience, including 10 years in the nuclear industry. Proficiency in pressure boundary codes such as CSA N285.0 and ASME standards is mandatory.

Skills

Mechanical engineering
Nuclear power plant systems
Design basis documentation
Pressure boundary codes
CSA N285.0
ASME Section III
ASME B31.1
Technical leadership
Mentoring
Project management
Regulatory compliance
CNSC interface
TSSA registration
Engineering change control
Seismic qualification
Environmental qualification

Benefits

Competitive compensation
Employee recognition
Flexible benefits
Training and professional development
Hybrid working culture
Generous time-off policies

Visa sponsorship

Not detected in the job text

Keywords

Mechanical Engineering
Nuclear Power
Design Specification
Pressure Boundary
CSA N285.0
ASME Section III
ASME B31.1
Nuclear Island
Turbine Island
HVAC
Chillers
CNSC
TSSA
Engineering Change Control
Seismic Qualification
Environmental Qualification
ASME Y14.5
Project Delivery
Technical Guidance
Regulatory Requirements
Design Packages
BOM
SCL
Conceptual Design
AFS
Close Out
Professional Engineer
Ontario
Infrastructure
Energy Systems

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