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Senior Mechanical PLiM​/PLEX Engineer

Remote / Online - Candidates ideally in
Mississauga, Ontario, Canada
Listing for: Snc-Lavalin
Remote/Work from Home position
Listed on 2026-07-16
Job specializations:
  • Engineering
    Mechanical Engineer
  • Energy/Power Generation
Job Description & How to Apply Below
Job Description  Candu Energy Inc. is a leading full-service nuclear technology company providing nuclear power reactors and nuclear products and services to customers worldwide. Our 1,400 highly skilled employees design and deliver state-of-the-art CANDU® reactors, carry out life extension projects, provide plant life management programs and tools, and offer operation and maintenance services for existing nuclear power stations.
This role is based out of the Candu Energy Inc home office in Mississauga, Ontario. Candu Energy Inc. is looking to hire a Senior Mechanical PLiM/PLEX Engineer. This position requires experienced individuals who are self-starter capable of working independently. The individuals will work in a fast-paced team environment performing and leading engineering services for Nuclear Power Plants within a matrix organization.
Responsibilities  Lead a team of junior and intermediate engineers, provide mentoring and coaching and impart training and plant life management and extension PLiM/PLEX knowledge transfer to develop human resources into long term corporate assets.
Work closely with and monitor and supervise the work of PLiM/PLEX consultants, contractors and vendor service teams for specific tasks and assignments during the normal plant operation and during the outage cycles.
Use working knowledge of PLiM/PLEX, Age Related Degradation Mechanism, Systematic Assessment of Maintenance, and FMEA procedures and techniques, work out and implement plant specific methodologies to proactively assess potential damages and put in place sound workable plans and strategies to mitigate the long and short term risks to enhance the plant life, maintain plant operational performance, reliability and safety of the systems, structures, equipment and components in the Nuclear Steam Plant and the Balance of Plant.
Provide support to the technical lead to perform conceptual and detail plant life management and life extension activities including systems decomposition, system analysis, criticality analysis, task selection and single point vulnerability assessments.
With a strong focus on PLiM/PLEX needs and requirements, interact with other related disciplines and provide mechanical and equipment engineering input for the preparation of technical deliverables including specifications, plant layout, inspection and test procedures, commissioning plans and registration design submissions for nuclear power plant (NPP) components and mechanical systems.
Coordinate with large scale new and existing nuclear power plants of considerable technical and commercial complexity and provide technical advice and guidance for the overall plant life management including critical systems and critical equipment covering: pumps, fans, motors, valves, heat exchanges, steam generators, pressure vessels, tanks, piping, HVAC systems, steam turbines, condensers, generators and associated mechanical components.
Define project work scope, monitoring and reporting project progress and communicating with clients.
Conduct site visits at nuclear generating stations for plant and equipment inspection and testing, condition monitoring and recommend plans for preventive maintenance and long and short-term mitigation of degradation mechanism.
Assist other engineers and branch managers with daily engineering activities.
Qualifications   Engineering degree from an accredited University in Mechanical, Process or Nuclear Engineering.
Registered Professional Engineer in the Province of Ontario, qualified to seal engineering documents.
Proven and industry recognized plant life management and extension experience, preferably in the Candu nuclear power plants, fossil fuel power stations, petrochemical plants or oil refineries covering major system and critical equipment, mechanical design and operation and maintenance of industrial machines, automation equipment and automated‑tooling design.
Strong team player with experience of inter‑discipline coordination and in developing maintenance‑based design and working methodologies for risk assessment and management using mitigation methodologies for plant and equipment aging related degradation mechanisms.
Solid understanding of process systems, mechanics and working principles of large sized and complex rotating machines and static equipment, operation and maintenance procedures, mechanics of materials, material selection and fundamentals of machine component design.
Solid understanding and experience in equipment sizing, selection, and troubleshooting issues at plant sites.
Must have experience to use and provide support for the software program used to perform SAM.
Proven working knowledge of nuclear pressure boundary Codes and Standards, including CSA N285.0 and ASME Sections III and other applicable codes and standards.
Knowledge of Plant Life Management (PLiM)/Plant Life Extension (PLEX) and maintenance and refurbishments of critical equipment and system aging process and degradation mechanism.
Understanding of…
Position Requirements
10+ Years work experience
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