Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Mechanical Engineer (Plant Design)

$122.9k - $162.8k per year

WSP

Senior Mechanical Engineer (Plant Design)

  • Sudbury, ON, Canada

Job Description

What if you could redefine what's possible?

With us, you can. You want Purpose. Growth. Opportunity. People who get it. We are the home of ambitious, passionate, and innovative world shapers. With an unmatched breadth and depth of engineering, advisory and science‑based expertise, our global minds unite to power local solutions. We are pathfinders and impact makers. We are Visioneers. We are WSP.

The Opportunity

Build the future with us. As a Senior Mechanical Engineer within our Mine Process & Mine Infrastructure group, you will shape the systems and infrastructure that power Canada’s most complex industrial and mining environments. From optimizing process plant layouts to advancing mechanical excellence on major brownfield and greenfield programs, your expertise will directly influence safe, sustainable, and high‑performing operations across Canada and internationally.

Your Impact

  • Lead mechanical engineering for industrial and mining plant facilities, including material handling systems, pumping systems, piping networks, and equipment layouts.
  • Deliver and review high‑quality engineering outputs—calculations, specifications, datasheets, technical reports, and drawing packages.
  • Steward technical integration across process, structural, electrical, and civil discipline teams to ensure cohesive project execution.
  • Mentor and guide intermediate and junior engineers and designers, fostering technical growth and excellence.
  • Partner with clients, vendors, and contractors to support equipment selection, procurement, constructability planning, and commissioning success.
  • Conduct and participate in design reviews, HAZOPs, field engineering assessments, and constructability evaluations.
  • Champion compliance with industry codes, standards, and WSP quality systems.
  • Contribute to proposal development, scope definition, and identification of engineering risks and opportunities.

The Skills That Set You Apart

  • Bachelor’s degree in Mechanical Engineering and active P.Eng. (or eligibility).
  • 10–15 years of progressive experience with a strong focus on industrial or mining plant design.
  • Expertise in process plants, mine infrastructure, material handling systems, plant layouts, and rotating/static equipment.
  • Experience working within both brownfield and greenfield environments.
  • Proven ability to lead mechanical design independently while providing technical leadership in multidisciplinary teams.
  • Comfort working closely with clients in dynamic, fast‑paced project environments.

Why Choose WSP?

We exist to shape communities to advance humanity. The brightest engineers, advisors and scientists from across the globe call WSP home.

  • Proudly Canadian – we are a Top 100 Employer in Canada for 2026.
  • A global community of brilliant minds – your next idea, mentor, or opportunity is always within reach.
  • Limitless opportunities start here . Whether it’s across the country or around the globe, we help you tailor your role to match your ambition — because your growth drives ours.
  • Flexible work, real balance – we recognize the importance of balance in our lives and encourage you to prioritize the balance in yours.

#WeAreWSP

Compensation

AB, BC, NT, NU, SK & YT: $122,900 – $162,800

MB & ON: $112,100 – $154,400

NB, NL, NS, PEI & QC: $111,000 – $147,400

Disclosure: The final salary awarded for this role may vary from the above range based on several factors including, but not limited to, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs. The wage range provided in this job posting may be subject to change for business purposes.

About Us

At WSP , we exist to shape communities to advance humanity.

It’s why we bring people together who are wired to solve complex challenges - engineers, scientists, advisors, and technical experts who are driven by a common passion - to redefine what’s possible and shape what comes next. We are Visioneers.

As one of the world’s leading professional services firms, we partner with clients across transportation, infrastructure, environment, buildings, energy, water, mining and metals. We pair deep local knowledge with global insights to pioneer solutions designed to leave a lasting, positive impact.

At WSP , you’ll join a community of brilliant minds that push boundaries every day - applying deep expertise and fuelling innovation to help create a more connected and resilient future. Here, your ideas are valued, your growth is supported, and you are encouraged to bring your authentic self to work. We empower our people to collaborate across disciplines, challenge the status quo, and shape a career with purpose.

Join us.

Please Note: Health and Safety is a core paramount value of WSP. Given the importance of keeping one another safe it is expected that you comply with our Health, Safety & Environment (HSE) policy at all times as well as client HSE policies when working at client locations.

Some safety-sensitive positions involve fieldwork and may include work in a variety of environmental conditions, such as remote or isolated areas, working alone, and in inclement weather (within safe and reasonable limits).

WSP welcomes and encourages applications from people with disabilities. Accommodations are available on request for candidates taking part in all aspects of the selection process.

WSP is committed to the principles of employment equity. Only the candidates selected will be contacted.

#J-18808-Ljbffr
Vacancy posted a month ago
Similar jobs that could be interesting for youBased on the Senior Mechanical Engineer (Plant Design) in Mississauga, ON vacancy
  • A Canadian engineering firm is looking for a Senior Mechanical Engineer to lead projects in industrial and mining environments. The role involves delivering high...  ..., and collaborating with clients on equipment and design. Candidates should have a Bachelor’s in Mechanical Engineering... 
    Senior

    WSP in Canada

    Mississauga, ON
    more than 2 months ago
  • ### **Job Description**## **Overview** The Computer Systems Engineering department is responsible for digital instrumentation and control equipment...  ...new builds. The department is responsible for digital system design, equipment selection and procurement, and all software... 
    Senior
    Internship
    Flexible hours

    AtkinsRéalis Group

    Mississauga, ON
    5 days ago
  • $131k - $181k per year

     ...Select how often (in days) to receive an alert: Mechanical Engineer, Senior, Nuclear Date: Sep 5, 2026 Company: Hatch Requisition ID:...  ...nuclear power renaissance with projects supporting existing plants, small and advanced modular reactor designs, nuclear sustainability... 
    Senior
    Long term contract
    Local area
    Shift work

    Hatch Ltd.

    Mississauga, ON
    a month ago
  •  ...worldwide. Our 1,400 highly skilled employees design and deliver state-of-the-art CANDU®...  ...out life extension projects, provide plant life management programs and tools, and...  ...Candu Energy Inc. is looking to hire a Senior Mechanical PLiM/PLEX Engineer. This position requires... 
    Senior
    Long term contract
    Permanent employment
    Full time
    Temporary work
    For contractors
    Internship
    Work at office
    Worldwide
    Home office
    Flexible hours

    AtkinsRéalis

    Mississauga, ON
    9 days ago
  •  ...Overview Job Description Overview The Senior Director, Plant Controls Systems is a senior...  ...operational excellence of Plant Control Systems engineering within the organization. This role...  ...discipline-specific standards, procedures, design guides, and best practices. Oversee... 
    Senior
    Long term contract
    Internship
    Flexible hours

    Candu Energy Inc.

    Mississauga, ON
    4 days ago
  • Join AtkinsRéalis as a Plant Controls Systems Engineer in Mississauga, Ontario, focused on nuclear digital instrumentation and control systems. Collaborate...  ...and commercial interface, guiding system architecture and design for safety/control systems. Your expertise in software... 

    AtkinsRéalis Group

    Mississauga, ON
    5 days ago
  • Elevate your engineering career as a Senior Mechanical Engineer at Zebra Technologies, tackling customer solutions and driving cost reductions in mobile computing...  ...reduction and supply chain initiatives • Cooperate with design partners on optimized design releases • Conduct root-... 
    Senior

    Zebra Technologies

    Mississauga, ON
    a month ago
  •  ...the future with AtkinsRéalis. AtkinsRéalis is dedicated in engineering a better future for our planet and its people....  ...AtkinsRéalis Nuclear Inc. is actively seeking a qualified Senior Mechanical/Piping Designer to support engineering roles for nuclear projects in major... 
    Senior
    Full time
    Work at office
    Flexible hours

    AtkinsRéalis

    Mississauga, ON
    2 days ago
  • Elevate your career as a Lead Mechanical Engineer with CRB, focusing on HVAC design and engineering for impactful facilities. Drive excellence in project execution and team leadership. This position requires a minimum of 10 years’ experience, emphasizing advanced mechanical... 
    Internship

    SmartRecruiters, Inc.

    Mississauga, ON
    1 hour ago
  • $120k - $170k per year

     ...Senior Heavy Mechanical Engineer – Hydropower and Dams Full-time Business Group: DCS Legal Entity: AECOM Consultants Inc Business Line...  ...and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and... 
    Senior
    Full time
    Contract work
    For contractors
    Worldwide

    AECO

    Mississauga, ON
    a month ago
  • $60k - $70k per year

     ...is no option to work remotely. Work setting Manufacturing or processing industry Engineering firm Responsibilities Tasks Commission systems and components Design, develop and specify processes for moulding, forming and thermal treatment of metals, alloys... 
    Permanent employment
    Full time
    Remote work

    Trans-United Consultants Ltd.

    Mississauga, ON
    3 hours ago
  •  ...Job Description Overview CANDU Energy Inc./AtkinsRéalis Nuclear Inc. is actively seeking a qualified Senior Mechanical/Piping Designer to support engineering roles for nuclear projects in major areas, such as, new build in the province of Ontario, international new builds... 
    Senior
    Full time
    Internship
    Flexible hours

    AtkinsRéalis

    Mississauga, ON
    15 days ago
  • $90.96k - $136.44k per year

     ...What We're Looking For Zebra Technologies is looking for a Mechanical Engineer, Senior to join our Engineering Customer Response Team (ECRT)...  ...this role, you’ll tackle customer issues, enhance product designs, and drive cost-effective solutions, all while collaborating... 
    Senior
    3 days per week

    Zebra Technologies

    Mississauga, ON
    more than 2 months ago
  • $90k - $110k per year

     ...Senior Civil Engineering Designer Environmental Due Diligence & Remediation Mississauga, ON / Remote Annual Salary Range: $90,000-$110,000 CAD Join Pinchin Canada in a Senior Civil Engineering design role where your technical expertise will support project excellence... 
    Senior
    Full time
    Work at office
    Remote work
    Flexible hours

    Pinchin Canada Career

    Mississauga, ON
    more than 2 months ago
  • Advance your career as a Mechanical Engineering Manager at Colt Automation in Mississauga, ON. Lead innovative machinery design projects with a focus on automation and collaboration. The role seeks an experienced engineer with at least 7 years in automated equipment design and... 

    Fitzii, Inc.

    Mississauga, ON
    4 days ago
  •  ...Job Description Overview Senior Electrical Engineer (BOP) is responsible for leading all Balance of Plant (BOP) electrical engineering activities for the Monark-D Program...  ...from concept development through detailed design, procurement, construction support, commissioning... 
    Senior
    Full time
    Contract work
    Internship
    Flexible hours

    AtkinsRéalis

    Mississauga, ON
    6 days ago
  • $115k - $165k per year

     ...Requisition ID: 100496  Job Category:  Engineering; Metals  Location:  Mississauga, ON,...  ...brownfield facilities? Apply today! The Mechanical Engineer will be part of an project...  ...performing functional analyses, defining design criteria, preparing engineering calculations... 
    Senior
    Long term contract
    Local area
    Flexible hours

    Hatch

    Mississauga, ON
    15 hours ago
  •  ...largest private sector nuclear engineering groups. We have been...  ...Perform conceptual and detail design engineering work for CANDU reactor...  ...and drawings. Supervised by senior engineers, while adhering to...  ...About you This is a mechanical engineering position, in the... 
    Senior
    Full time
    Internship
    Flexible hours

    AtkinsRéalis

    Mississauga, ON
    16 days ago
  •  ...Domain Keywords ~ Airframe Design/Fuselage / Wing / Empennage Structures...  ...Role Overview The Onsite Engineer / Coordinator serves as the...  ...’s degree in aerospace / mechanical engineering ~8–10 years’ experience (Check in the JD) ~ Senior Engineer / Lead Engineer (only... 
    Senior
    Full time

    Sapsol Technologies Inc

    Mississauga, ON
    more than 2 months ago
  •  ...Description Overview AtkinsRéalis is looking to hire a Senior Mechanical/Process Engineer. This position requires experienced individuals who are...  ...environment performing engineering services for Nuclear Power Plants within a matrix organization. Your role Prepare and... 
    Senior
    Full time
    Internship
    Flexible hours

    AtkinsRéalis

    Mississauga, ON
    8 days ago
  •  ...AtkinsRéalis is one of Canada's largest private sector nuclear engineering groups. We have been providing a wide range of services to...  ...Your role Perform conceptual, preliminary and detailed mechanical design engineering work for reactor components to applicable codes,... 
    Full time
    Internship
    Flexible hours

    AtkinsRéalis

    Mississauga, ON
    16 days ago
  • $60k - $70k per year

     ...Education: Bachelor's degree Experience: 3 years to less than 5 years Work setting Mining Industry Engineering firm Tasks ~ Design and plan structural steel fabrications Computer and technology knowledge ~ SolidWorks software Area of work experience... 
    Permanent employment

    Trans-United Consultants Ltd.

    Mississauga, ON
    a month ago
  •  ...group is responsible for the design, construction and commissioning of hydrometallurgical plants used globally for the recovery...  ...:   Hatch is seeking a Mechanical Design Technologist Co-op Student...  ...problems and gain experience in an engineering consulting environment... 
    Long term contract
    Internship
    Work at office
    Local area
    Flexible hours

    Hatch

    Mississauga, ON
    15 hours ago
  •  ...supervision, plans and executes the engineering activities assigned by the...  ...and P&ID), calculations, design/analysis reports, design requirements...  ...you Engineering Degree in Mechanical or Civil & Structure from an...  ...(knowledge of nuclear power plant systems codes and regulations... 
    Senior
    Full time
    Internship
    Flexible hours

    AtkinsRéalis

    Mississauga, ON
    14 hours ago
  •  ...Company Description At CRB, we design and build some of the most...  ...provider of sustainable Engineering, Architecture, Construction and...  ...Job Description The Lead Mechanical Engineer focuses on the design...  ...support staff (Entry-Level to Senior) to meet client expectations... 
    Senior
    Full time
    For subcontractor
    Work at office

    Crb

    Mississauga, ON
    more than 2 months ago
  •  ...Job Responsibility: Mechanical Design EPCM Global Engineering The role requires producing high quality, cost effective, detail 3D designs and general...  ...layout and detailing of materials handling and mine plant design in their nominated discipline. Produce design... 
    Long term contract
    Permanent employment
    Work at office
    Flexible hours

    Lycopodium

    Mississauga, ON
    1 day ago
  •  ...Demand For HR is seeking a Canada-based Manager, Design Production to lead the CAD design and drafting team across engineering disciplines, ensuring QA/QC and code compliance for electrical distribution projects. You will coordinate with the India team to balance workload... 
    Senior

    Demand For HR

    Mississauga, ON
    3 days ago
  • Shape the future of energy as a Senior Mechanical Engineer at Hatch in Mississauga. Engage in revolutionary nuclear projects that embrace sustainable...  ...energy transition. With a robust background in mechanical design and compliance with Canadian standards, you will be integral... 
    Senior

    Hatch

    Mississauga, ON
    a month ago
  • $90k - $100k per year

     ...Responsibility: Job Summary: As a Senior Plant Manager, you will play a pivotal role in...  ...protocols. **Responsibilities:** - Utilize mechanical knowledge to oversee plant operations...  ...*Experience:** - Bachelor's degree in Engineering, Business Administration, or related... 
    Senior
    Full time
    Monday to friday
    Night shift
    Day shift
    Afternoon shift

    ct bakery

    Mississauga, ON
    1 day ago
  • $115k - $165k per year

     ...Requisition ID: 101315. Job Category: Engineering; Metals. Location: Mississauga...  ...brownfield facilities? The Senior Process Engineer will be part...  ...in all areas of the process plant across various systems, unit...  .... Experience in Concentrator design for various commodities is... 
    Senior
    Long term contract
    Local area
    Flexible hours

    Hatch

    Mississauga, ON
    24 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Mechanical Engineer (Plant Design). Be the first to apply!