Full-Time

Senior Mechanical/Process Engineer

AtkinsRéalis

AtkinsRéalis

10,001+ employees

Engineering services for infrastructure and energy

No salary listed

Mississauga, ON, Canada

Hybrid

Hybrid working culture; no specific in-office days listed.

Category
Mechanical Engineering (1)
Required Skills
Process Engineering

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Requirements
  • Degree in Mechanical or Chemical Engineering from an accredited University with a minimum of 15 years of relevant experience (minimum 10 years in the nuclear industry as a Senior Design Engineer working on modifications to nuclear systems or components).
  • Qualified Specialized Professional Engineer to ASME Section III, Div.1, Appendix XXIII or qualified for certification.
  • Registered Professional Engineer in the Province of Ontario, and member in good standing.
  • Experienced in Refurbishment, Modifications and technologies enhancement of existing Mechanical and Piping Systems Structures and Components (SSCs) in operating stations from Conceptual Design to Available For Service (AFS) and Close Out following established Client Engineering Change Control (ECC) processes and procedures.
  • Experience in plant islanding/lay-up engineering. Mechanical, Process and Piping Systems integration/design and analysis for SSCs (e.g. Turbine Auxiliary Systems, Moisture Separators/Reheaters, Water Treatment Plant, Main Condenser, HVAC, Station Drainage, Cranes, Compressed Air Systems, Water Systems, Chillers, etc.).
  • Experience interfacing with CNSC and TSSA including preparing correspondence letters, TSSA registration and re-coniliation packages, code classifications and memos.
  • Working knowledge of nuclear codes and standards, including CSA N285.0, CSA N289, ASME Section III Division 1 and ASME B31.1.
  • Working knowledge of major nuclear operator’s ECC process.
  • Excellent written and oral communication skills.
  • Results driven individual with strong interpersonal skills.
Responsibilities
  • 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.
  • Prepare and review Engineering Change packages following major nuclear operator’s ECC process.
  • Mentor and provide technical guidance to junior engineers.
  • Perform calculations and assessment as required.
  • 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 are met.
Desired Qualifications
  • Knowledge of pressure boundary work including pressure vessel design, analysis, code classification, code class boundary, non-destructive examination and design registration is an asset.
  • Knowledge of dimensioning and tolerancing ASME Y14.5 standard is an asset.
  • Presentation skills and public speaking abilities is an asset.
  • Knowledge of seismic and environmental qualification methods and processes is an asset.

AtkinsRéalis provides engineering services focused on nuclear and infrastructure projects, connecting people, data and technology to transform energy systems and infrastructure worldwide. Its offering combines consulting, design, engineering and project management delivered from concept to commissioning by a global team of experts. The company differentiates itself through its global reach and end-to-end capability across conventional engineering and nuclear sectors, enabling coordinated multi-discipline delivery. Its goal is to improve infrastructure and energy systems worldwide by delivering integrated, high-quality engineering solutions that meet client needs and industry standards.

Company Size

10,001+

Company Stage

Acquired

Total Funding

$2.8B

Headquarters

Epsom, United Kingdom

Founded

1938

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Simplify Jobs

Simplify's Take

What believers are saying

  • Board expertise can speed AtkinsRéalis digital delivery across engineering projects.
  • AEC software know-how can improve workflows, bids, and project execution.
  • Industrial AI leadership supports infrastructure and nuclear technology strategy.

What critics are saying

  • Digital capability gaps persist if board changes do not improve execution.
  • Nuclear safety or licensing failures can trigger costly project and trust shocks.
  • Competitors with stronger software stacks can win bids on speed and quality.

What makes AtkinsRéalis unique

  • Amy Bunszel brings Autodesk AEC software and AI transformation expertise.
  • Bill Ruh adds GE Digital industrial digitization and cloud platform experience.
  • Governance committee-led appointments embed technology oversight at board level.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

401(k) Company Match

401(k) Retirement Plan

Unlimited Paid Time Off

Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

1%

1 year growth

1%

2 year growth

0%
Yahoo Finance
Feb 28th, 2026
AtkinsRéalis reports record backlog of $21.2B and sells Highway 407 stake for $2.6B

AtkinsRéalis Group reported record 2025 results, with revenue rising 13% and backlog reaching a record $21.20 billion. The company completed the sale of its remaining Highway 407 interest for $2.60 billion and secured an investment-grade credit rating, enhancing financial flexibility for growth in engineering and nuclear services. The board reaffirmed a quarterly dividend of $0.02 per share, payable on 27 March 2026. Management maintained 2026 guidance for 5-7% organic revenue growth in engineering services and projected $2.50 billion in nuclear revenue. The company's narrative projects CA$12.80 billion revenue and CA$896.40 million earnings by 2028, requiring 7.4% annual revenue growth. However, investors face execution risks from concentrated nuclear exposure and complex infrastructure contracts that could introduce earnings volatility.

The Associated Press
Feb 27th, 2026
AtkinsRéalis posts $2.6B profit, hits record $21.2B backlog with nuclear revenue up 55%

AtkinsRéalis Group, a world-class engineering services and nuclear company, reported fourth-quarter revenue of $2.9 billion, up 13% year-over-year, with full-year revenue reaching $11.0 billion, up 14%. AtkinsRéalis Services revenue increased 17% in Q4 and 16% for the full year. The company achieved diluted earnings per share from Professional Services & Project Management of $2.14 for 2025, up 80%, whilst adjusted diluted EPS reached $3.36, up 88%. Full-year operating cash flow totalled $461 million, and backlog reached a record $21.2 billion as at 31 December 2025. For 2026, AtkinsRéalis expects Engineering Services Regions organic revenue growth of 5-7% and Nuclear revenue of approximately $2.5 billion. Operating cash flow is projected at roughly $500 million.

Cision
Dec 1st, 2025
AtkinsRéalis Acquires ADG Engineers Australia

AtkinsRéalis Group Inc. has acquired ADG Capital Pty Ltd, an Australian engineering consultancy. This acquisition aims to expand AtkinsRéalis' presence in the Australian market, adding ADG's 250 professionals to its team. The move enhances their capabilities in infrastructure, Defence, and Power & Renewables sectors. ADG, founded in 2002, is known for technical innovation and complex project delivery. This aligns with AtkinsRéalis' strategy of "Delivering Excellence, Driving Growth.

AtkinsRéalis
Nov 10th, 2025
AtkinsRéalis Acquires U.S.-based C2AE Architecture and Engineering Firm

Montreal: November 10, 2025– AtkinsRéalis Group Inc. (TSX: ATRL), a world-class engineering services and nuclear company with offices around the world, announced today that it has acquired C2AE, Inc. (“C2AE”) a Michigan-based architecture and engineering firm with eight locations and

Stock Titan
Mar 13th, 2025
Ferrovial Buys 5.06% 407 ETR Stake

Ferrovial is set to increase its stake in 407 ETR to 48.29% by acquiring up to 5.06% from AtkinsRéalis for [CAD]2.09 billion. The deal includes a 3.30% acquisition at closing and a 1.76% deferred stake via a put and call option. Additionally, AtkinsRéalis will sell its remaining 1.7% stake to CPP Investments, while PSP Investments will acquire a 7.51% interest from CPP Investments. The transactions are expected to close in Q2 2025, subject to conditions.