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Primero Group

Principal Mechanical Engineer (Canada or USA)

Canada

Experience: 12+ years of experience in mechanical design for mining and mineral processing EPC/EPCM projects, with demonstrated progression to senior/principal level.
Working hours: 40 hours per week
Posting language: English
Posted: Oct 2, 2026

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Original job description

Description & Requirements

Principal Mechanical Engineer

Location: Canada (Montreal, Toronto or Vancouver) or United States (Salt Lake City)

Type: Permanent Full-time

This posting is also available in French. Both postings refer to the same position.

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.

Key Responsibilities:

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.

What We’re Looking For:

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.

Position details:

40 hours per week
Applicants must have legal authorization to work in Canada or in United-States, depending on the job location
Competitive salary tailored to your skills and experience
Comprehensive benefits starting on day one
Retirement plan with 5% employer contribution
Up to 10 paid sick days per year
Flexible and hybrid work schedule
Friendly and relaxed work environment

Send your application to: HR@primero.ca

General information

Name

Principal Mechanical Engineer

Ref #

1272446

Date

Wednesday, April 22, 2026

Country

Canada

Department

Engineering

Business unit

Design

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More about this job

Responsibilities

The Principal Mechanical Engineer acts as the technical expert for mechanical engineering, leading complex calculations, specifications, and equipment evaluations for mining projects. They are responsible for mentoring the team, ensuring quality deliverables, and providing hands-on support during construction and commissioning.

Requirements

Candidates must have a Bachelor's degree in Mechanical Engineering and over 12 years of experience in mining and mineral processing projects. A professional engineering designation (P.Eng. or PE) is considered an asset, along with strong technical proficiency in mechanical design and vendor management.

Skills

Mechanical engineering
Mineral processing
Project management
Technical mentorship
Equipment specification
Vendor evaluation
Calculations
AutoCAD
Inventor
3D modelling
Procurement support
Commissioning
Troubleshooting
ASME
CSA
API

Benefits

Comprehensive benefits
Paid sick days
Flexible work schedule

Visa sponsorship

Not detected in the job text

Keywords

Mechanical Engineering
Mining
Mineral Processing
EPC
EPCM
Crushers
Mills
Conveyors
HVAC
Piping
AutoCAD
Inventor
ASME
CEMA
CSA
API
Procurement
Vendor Management
Commissioning
Technical Mentorship
Feasibility Studies
Detailed Design
Risk Mitigation
Subject Matter Expert
Mechanical Design
Equipment Selection
Project Execution
Engineering Standards
Quality Assurance
Construction Management

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