Full-Time

Senior Cyber Security Specialist

Calgary

Posted on 12/13/2025

AtkinsRéalis

AtkinsRéalis

10,001+ employees

Engineering services for infrastructure and energy

No salary listed

Calgary, AB, Canada

In Person

Requires in-office presence at Calgary project office.

Category
IT & Security (1)
Requirements
  • Security certifications or demonstrated experience: CISSP, GICSP, OSCP, C|EH, CISM, IEC 62443 Fundamentals, CompTIA Security+, CCNP, etc.
  • Experience in critical infrastructure and ICS/OT in the transportation industry.
  • Understanding of IT/OT systems including servers, networks, workstations, and infrastructure.
  • Understanding of Cyber Security roles and responsibilities.
  • Deep knowledge of cyber security frameworks and standards, including APTA, NIST, ISA/IEC 62443, and ISO 270001.
  • Familiarity with OT-specific cybersecurity platforms and tools (e.g., Claroty, Nozomi, Dragos).
Responsibilities
  • Develop and Implement the Cybersecurity Program for design and build of the rail system. This role is responsible for identifying and mitigating cyber risks, ensuring compliance with industry standards, and facilitating collaboration across technology stakeholders.
  • Plan cyber security activities and apply a risk-based approach in all phases of the project: feasibility, design, test & commissioning, and into operation of the project.
  • Promote and enforce OT cybersecurity policies and procedures based on APTA, NIST, IEC 62443, and/or ISO 27001 standards.
  • Collaborate with IT, engineering, and operations teams to align cybersecurity strategies across networks.
  • Conduct risk assessments and evaluate the effectiveness and impact of mitigation strategies.
  • Respond to information security issues during each stage of a project’s lifecycle.
  • Define cyber security requirements to the suppliers and engage in the procurement activities.
  • Provide actionable recommendations to mitigate cybersecurity threats and improve OT security posture.
  • Assist in incident response and recovery activities within OT environments.
  • Manage client relationships, and advise on recommended actions.
  • Lead and mentor junior staff on projects and teams.
Desired Qualifications
  • Understanding of other technology systems: Automation / SCADA / Control Systems.
  • Understanding of other technology systems: Telecommunications / Network Technology.
  • Understanding of other technology systems: Information Technology / Data Centre.
  • Understanding of other technology systems: Computer Sciences / Software Engineering.
  • Additional certifications (e.g., CCNA, CISA, ISO27001 LI).
  • Demonstrated experience with compliance and regulation (NERC-CIP, CSA, NIS, etc.).
  • Bilingual French / English is an asset but not required.

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

Simplify Jobs

Simplify's Take

What believers are saying

  • Record $21.2B backlog and $1.1B cash enable selective tuck-in acquisitions without balance-sheet pressure.
  • Nuclear revenue projected $2.5B in 2026 with recurring large program execution momentum.
  • Australia and Ireland geographic expansion positions company for infrastructure and defence spending growth.

What critics are saying

  • Four 2026 acquisitions risk culture clashes and systems mismatches degrading delivery quality.
  • EAGL-1 reactor design delays burn engineering capacity without near-term cash generation.
  • Loss of Highway 407 stable asset exposes earnings to project timing and nuclear execution volatility.

What makes AtkinsRéalis unique

  • Nuclear division achieved $736.6M Q1 2026 revenue, up 37% year-over-year.
  • Strategic 20-year alliance with First American Nuclear for EAGL-1 SMR deployment.
  • Rapidly building Australia platform through WGA, ADG, Coras acquisitions adding 1,120 professionals.

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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

Company News

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.

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