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Job Description:
Parsons is looking to hire a full-time dedicated Senior Mechanical Engineer to lead Infrastructure projects engineering work. The Senior Mechanical Engineer is broadly responsible for establishing system requirements, performing functional analyses, and preparing engineering calculations, technical specifications, data sheets, and reports while mentoring and leading junior engineers to meet our clients’ needs. Senior Mechanical Engineers are also responsible for providing regular input into the progressive elaboration of 3D models and 2D drawings to achieve technically coherent and compliant designs for our clients. This role would be based out of our Oakville, Ontario office.
Key Responsibilities
Depending on the role in the project, responsibilities may include and are not limited to:
- Demonstrate a range of technical capabilities with experience in Mechanical Engineering and design, and development of contract documents (design reports, analysis reports, calculations, plans, specifications, etc.).
- Lead or assist in the definition of mechanical project scope
- Lead mechanical engineering teams to ensure delivery of project requirements as they relate to scope, cost, and schedule
- Establish user requirements, analyze system functional and performance requirements, and define design criteria
- Develop appropriate mechanical HVAC, plumbing, and fire protection design schemes.
- Prepare and interpret engineering calculations including heat load calculations, and hydraulic modeling/calculations, and perform system analyses
- Prepare equipment sizing while ensuring that all analyses satisfy user and system requirements
- Provide input to other disciplines within the project design team on mechanical requirements for layouts and project designs
- Conduct interface management between related systems and disciplines.
- Prepare technical specifications including input received from other project disciplines
- Manage and review engineering work packages associated with project deliverables including management of project budgets and schedule.
- Prepare, review, or approve technical deliverables such as equipment specifications, data sheets, calculations, etc.
- Prepare and contribute to technical memos and reports
- Provide input to engineering, operating, and capital cost estimates
- Prepare or provide input to 3D models and 2D mechanical drawings
- Participate in and contribute to design reviews
- Assist in the compilation and delivery of monthly engineering status reports
- Assist with technical queries raised during the construction phase
- Assist in the commissioning of systems on site as required
- Guide more junior engineers and drafters
Qualifications And Experience
- B.Sc./B.Eng. in mechanical engineering
- Registration as a professional engineer in Ontario (PEO)
- Minimum 8 years of project engineering/design experience in buildings HVAC, Plumbing and Drainage, and Fire Protection
- Experience in LRT, Metro, or Railway /transit design projects (or any other Infrastructure projects)
- Experience in leading small and large mechanical teams in multi-disciplinary projects.
- Excellent interpersonal, presentation, and communication skills.
- Excellent organizational, planning, time management, and problem-solving skills
- Ability to meet targets with minimal supervision
- Knowledgeable in the use of specialized engineering software such as Carrier HAP, AFT Fathom, eQUEST, etc.
- Working knowledge of industry standards (NFPA, ASHRAE), regulations, and codes (OBC, NBC) pertinent to the infrastructure mechanical engineering discipline
- Sound knowledge of engineering management systems, deliverable progress measurement
- Experience with greenfield and brownfield interfaces, including constructability experience
- Willingness to learn, develop and apply new techniques, standards, and processes
- Ability to delegate tasks and effectively supervise engineers and designers.
This position is intended to identify candidates for future potential opportunities and is not for an existing opportunity.
We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as health, vision, dental, employer paid provincial care premiums, Defined Contribution Pension Plan (DCPP), Tax-Free Savings Account (TFSA), Registered Retirement Savings Plan (RRSP), life insurance, paid time off, sick leave, all province observed holidays off, and gym membership discounts to fit your busy lifestyle!Parsons is an equal opportunity employer committed to diversity, equity, inclusion, and accessibility in the workplace. Parsons equally employs representation at all job levels for indigenous peoples, women, individuals with disabilities, and visible minorities.We truly invest and care about our employee’s wellbeing and provide endless growth opportunities as the sky is the limit, so aim for the stars! Imagine next and join the Parsons quest—APPLY TODAY!
Parsons is aware of fraudulent recruitment practices. To learn more about recruitment fraud and how to report it, please refer to https://www.parsons.com/fraudulent-recruitment/.
Skills Required
- B.Sc./B.Eng. in Mechanical Engineering
- Registration as a Professional Engineer in Ontario (PEO)
- Minimum 8 years project engineering/design experience in buildings HVAC, Plumbing and Drainage, and Fire Protection
- Experience in LRT, Metro, Railway/transit or other infrastructure projects
- Experience leading mechanical teams on multi-disciplinary projects
- Knowledgeable in specialized engineering software such as Carrier HAP, AFT Fathom, eQUEST
- Working knowledge of industry standards, regulations, and codes (NFPA, ASHRAE, OBC, NBC)
- Experience with heat load calculations, hydraulic modeling/calculations, and equipment sizing
- Experience with greenfield and brownfield interfaces and constructability
- Excellent interpersonal, presentation, communication, organizational, planning, time management, and problem-solving skills
- Ability to delegate tasks and effectively supervise engineers and designers
- Willingness to learn and apply new techniques, standards, and processes
Parsons Corporation Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Parsons Corporation and has not been reviewed or approved by Parsons Corporation.
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Retirement Support — Retirement programs are framed as a major value driver, with an ESOP alongside a 401(k) match and additional stock-purchase options contributing meaningfully to total rewards. This structure is positioned as especially attractive for employees who value long-term wealth-building over immediate cash.
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Healthcare Strength — Health coverage is described as broad and choice-rich, with multiple plan types (PPO, HDHP, and some HMO networks) plus dental, vision, EAP, and wellness resources. The availability of different plan designs and national-carrier coverage supports varied employee needs.
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Leave & Time Off Breadth — Time-off offerings are portrayed as competitive, including PTO, holidays, flexible schedules such as a 9/80 option for eligible roles, and floating holidays in the U.S. Paid parental leave of 160 hours is also highlighted as a meaningful component of the overall package.
Parsons Corporation Insights
What We Do
Parsons is a digitally enabled solutions provider with a focus on making the world safer, smarter, healthier, more sustainable, and more connected. Founded in 1944, Parsons primarily serves the defense, security, and infrastructure markets. Uniquely qualified to deliver cyber/converged security, technology-based intellectual property, and other innovative services, the corporation delivers state-of-the-art solutions to federal, regional, and local government agencies as well as to private industrial customers worldwide. Parsons has a reputation for inclusion and diversity and has been named to the Ethisphere Institute’s list of World’s Most Ethical Companies for 10 consecutive years. Parsons facilitates a culture of innovation by encouraging collaboration among its employees and providing opportunities for career growth. With offices around the globe, people of varied talents and backgrounds, and a wide range of exciting projects, the possibilities at Parsons are endless. For more about Parsons, visit www.parsons.com. Mission: Delivering innovative infrastructure, defense, and security solutions to enable a more sustainable, safer, smarter, and more connected world.
