Principal Mechanical Lead Engineer , Mining
Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Aug 19, 2026. Worley scores B on the Alion truth index.
About us
Worley is a global company of energy, chemicals and resources experts headquartered in Australia. We partner with our customers to deliver projects and create value across the life of their assets. We specialize in consulting, engineering, procurement and construction across the project lifecycle, with services extending through to operations and decommissioning. Leveraging extensive experience and AI-enabled delivery, we support customers in navigating complexity as they meet today's needs and transition to more sustainable solutions.
Purpose:
We are currently recruiting for a Principal Mechanical Lead Engineer (MMM). Our team includes world class experts and dynamic go-getters. This is a full-time position based in Oakville, Ontario
Worley is seeking a Principal Mechanical Engineer (Lead) based in Oakville, Ontario. This role provides mechanical engineering leadership for the design and delivery of process and utility equipment across MMM (Mining, Minerals and Metals) projects. The successful candidate will lead a multidisciplinary engineering team; direct the development and review of specifications, design calculations, and drawings; support procurement and construction activities; and ensure deliverables meet applicable codes, standards, and regulatory requirements. Reporting to the Mechanical and Piping Engineering Department Manager (Canada East), this role partners closely with project teams, customers, and suppliers to enable safe, compliant, high-quality outcomes.
The ideal candidate is self-directed, collaborative, and results-oriented, with strong leadership, stakeholder engagement, and communication capabilities, and a demonstrated ability to solve complex engineering challenges in regulated environments.
Responsibilities:
- Provide mechanical engineering leadership from concept through commissioning, including equipment selection, system integration, and overall technical direction.
- Lead the mechanical engineering project team in development, review, and approval of specifications, design calculations, and drawings for various mechanical equipment.
- Ensure engineering deliverables comply with applicable regulatory requirements, industry standards, and Worley’s HSE and quality expectations.
- Deliver mechanical engineering services that meet Worley, customer, and statutory requirements, aligned to project schedules and budgets.
- Contribute to studies and project execution activities, including estimates, schedules, and technical inputs.
- Support procurement activities by developing RFQs, leading technical bid evaluations, and providing recommendations for vendor selection.
- Review and approve vendor drawings, calculations, shop drawings, and technical data to confirm alignment with project specifications and quality requirements.
- Partner with suppliers and internal stakeholders throughout procurement and vendor document cycles to enable timely delivery.
- Maintain working knowledge of relevant codes, standards, and best practices; apply them consistently across deliverables.
- Identify, communicate, and support the management of changes to study and project scope.
- Stay current on emerging technologies and engineering practices to support continuous improvement and innovation.
- Provide professional engineering sign-off (stamp) on deliverables, where required and authorized.
- Coordinate and support design registration submissions with applicable authorities having jurisdiction (e.g., TSSA in Ontario), as required.
- Coach and mentor junior engineers and designers, providing technical guidance and quality oversight.
- Represent the mechanical discipline in client engagements, regulatory interactions, and quality assurance activities.
- Lead or participate in risk assessments, design reviews, and constructability evaluations to support safe and efficient execution.
- Collaborate with cross-functional project teams across multiple Worley offices and time zones to deliver project outcomes; flexibility to support schedule demands may be required.
- Conduct site visits and field walkdowns in operating facilities and construction environments to support project execution; this may include short-duration land or air travel for coordination and inspections.is position may be required to work from the Worley Oakville office as needed.
What you will bring:
Technical and Industry Experience:
- Proven experience leading mechanical engineering teams on brownfield and greenfield projects within the MMM (Mining, Minerals and Metals) sector.
- Strong experience with minerals and metals wet and dry processes and associated services.
- Expertise in developing and reviewing technical specifications for minerals and metals process equipment.
- Familiarity with applicable standards for a wide range of mechanical equipment.
- Strong organizational skills with the ability to prioritize competing demands and deliver to tight deadlines.
- Ability to work effectively with other disciplines; understand engineering sequencing and workflows; and support customer design reviews.
- Demonstrated leadership, communication, and sound judgment, with the ability to influence outcomes in regulated, safety-critical environments.
- Commitment to safety, quality, and continuous improvement, with a customer-focused approach to delivery.
- Candidates must be eligible to work in Canada.
Education - Qualifications, Accreditation, Training:
Required:
- Bachelor’s degree in Mechanical Engineering with 15+ years of relevant experience.
- Registered with Professional Engineers Ontario (PEO) as a Professional Engineer (P.Eng.).
For applicants based in the province of Ontario, the salary range is $149294 to $175641 CAD.
Application of the pay band: Variation in salary is determined by factors such as the candidate’s qualifications, relevant years of experience, geographic location, internal pay equity, and prevailing market conditions for the specific role.
Moving forward together
We want our people to be energized and empowered to drive sustainable impact. So, our focus is on a values-inspired culture that unlocks brilliance through belonging, connection and innovation. We're building a diverse, inclusive and respectful workplace. Creating a space where everyone feels they belong, can be themselves, and are heard.
And we're not just talking about it; we're doing it. We're reskilling our people, leveraging transferable skills, and supporting the transition of our workforce to become experts in today's low carbon energy infrastructure and technology. Whatever your ambition, there's a path for you here.
And there's no barrier to your potential career success. Join us to broaden your horizons, explore diverse opportunities, and be part of delivering sustainable change.