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Principal Mechanical Engineer - Location: Canada (Montreal, Toronto or Vancouver) or United States (Salt Lake City) - Type: Permanent Full-time - Primero America's team is currently looking for a Principal Mechanical Engineer. This is a unique opportunity to join our talented team and be part of Primero's growth and success. Primero is an Australian-founded company, established in 2011 and growing consistently in Montreal since 2016. We expanded into Houston in 2022 and Toronto in 2023, strengthening our North American presence. We specialize in the design, procurement, and construction management of mineral processing plants. As a Principal Mechanical Engineer, you will act as the technical expert for mechanical engineering within Primero. You will be responsible for leading and reviewing complex mechanical calculations, specifications, datasheets, equipment lists (MEL), and vendor evaluations. This role provides advanced technical expertise and support across mechanical design, analysis, equipment selection, operation, and project execution as required. The Principal Mechanical Engineer will ensure the quality and consistency of all mechanical deliverables for ongoing studies and detailed engineering work, while mentoring and guiding the team. Depending on the project, this person may also act as Lead Mechanical Engineer or Area Manager on specific mining projects. This position reports to the Discipline Lead – Mechanical Engineering.
Job Responsibility:
Act as the technical expert for mechanical engineering across Primero Americas projects, ensuring designs meet quality, safety, and performance standards
Remain hands-on in design and engineering: perform and check detailed calculations, prepare and review datasheets, specifications, reports, and drawings
Lead complex mechanical engineering deliverables for major equipment and systems (e.g., crushers, mills, conveyors, HVAC, piping, etc.)
Take ownership of equipment packages: develop specifications, evaluate vendor bids, manage technical queries, and coordinate with suppliers and clients
Provide technical mentorship to engineers and designers, while still directly producing deliverables as part of the team
Support drafting and 3D modelling by guiding designers, while also contributing to CAD/model reviews where needed
Standardize and improve engineering methods, tools, and templates to build best practices within the mechanical discipline
Provide advanced procurement support: ensure vendor equipment meets technical and contractual requirements, and advise on risk mitigation
Stay actively involved in construction, installation, and commissioning, solving technical issues on-site and providing hands-on support when needed
Represent Primero as a subject matter expert in client interactions, technical meetings, and industry discussions, reinforcing our reputation as a trusted technical partner
Requirements:
Bachelor's degree in Mechanical Engineering (Master's degree considered an asset)
Professional Engineer (P.Eng.) designation in Canada or Professional Engineer (PE) licensure in the United States (or eligibility to obtain) is considered an asset
12+ years of experience in mechanical design for mining and mineral processing EPC/EPCM projects, with demonstrated progression to senior/principal level
Strong technical background in design, specification, and selection of major mechanical equipment (e.g., crushers, mills, conveyors, pumps, piping, HVAC, etc.)
Proven ability to deliver feasibility studies, detailed design, and execution support
Hands-on experience with engineering software and CAD tools (AutoCAD, Inventor, or similar), including ability to review and guide drafting/modelling
Solid knowledge of applicable codes, standards, and regulations (ASME, CEMA, CSA, API, etc.)
Demonstrated experience in vendor management, equipment package development, and procurement support
Strong site experience: installation, commissioning, troubleshooting, and field support
Proven ability to mentor and guide engineers and designers, while still actively contributing to deliverables
Commercial awareness: able to balance technical quality, schedule, and budget in project decisions
Excellent interpersonal and communication skills, able to represent the company with clients, vendors, and industry stakeholders