Principal Process Engineer

Ausenco is a global company redefining what’s possible. Our team is based across 22 offices in 9 countries, with projects in over 80 locations worldwide. Combining our deep technical expertise with a 30-year track record, we deliver innovative, value-add consulting studies, project delivery, asset operations and maintenance solutions to the mining & metals, oil & gas, and industrial sectors.
We're looking for an experienced
Principal Process Engineer
to join our Toronto office. In this role, you'll be recognized as a subject matter expert, providing specialist technical expertise and guidance across a diverse portfolio of mining and mineral processing studies and projects.
You’ll work closely with clients, project teams and technical specialists across Ausenco, helping shape process solutions, solve complex engineering challenges and influence key technical decisions. From early-stage studies (PEA, PFS and FS) through to detailed engineering and project execution, you’ll play an important role in developing innovative, practical and technically sound solutions.
About The RoleWe're looking for an experienced
Principal Process Engineer
to join our
Toronto office. In this role, you'll be recognized as a subject matter expert, providing specialist technical expertise and guidance across a diverse portfolio of mining and mineral processing studies and projects.
You’ll work closely with clients, project teams and technical specialists across Ausenco, helping shape process solutions, solve complex engineering challenges and influence key technical decisions. From early-stage studies (PEA, PFS and FS) through to detailed engineering and project execution, you’ll play an important role in developing innovative, practical and technically sound solutions.
About The Role
Provide specialist technical expertise and strategic guidance across mining and mineral processing studies and projects, supporting critical process design decisions and the resolution of complex engineering challenges.
Act as a trusted technical advisor to clients and project teams, providing expert guidance on process selection, design strategies, technical risks and technology applications.
Serve as a subject matter expert in your area of specialization, contributing deep technical knowledge to process evaluations, trade‑off studies, technology assessments and process optimization.
Provide technical oversight and peer review of key process engineering deliverables, ensuring designs are technically sound, fit for purpose and aligned with industry standards and best practices.
Apply sound engineering judgment and critical thinking to challenge assumptions, evaluate alternatives and develop practical, innovative and cost-effective process solutions.
Work closely with Study Managers, Project Managers and multidisciplinary engineering teams to provide technical guidance and support successful project delivery.
Build strong relationships with clients, leading technical discussions, workshops and presentations, and helping influence key technical decisions.
Act as a technical mentor to engineers at all levels, sharing specialist knowledge, developing technical capability and promoting engineering excellence across Ausenco.
Contribute specialist expertise to proposals, project scoping, technical evaluations and business development activities, helping shape solutions and build client confidence.
Collaborate with Ausenco's global Process Engineering team to share knowledge, advance technical practices and support innovation and continuous improvement.
About You
Bachelor's degree in Mineral Processing, Extractive Metallurgy, Chemical Engineering or a related engineering discipline.
Minimum 15 years of relevant experience in mineral processing engineering, including front‑end studies, basic engineering and detailed design.
Professional Engineer (P.Eng.) designation in Ontario, or registration in another Canadian province with the ability to obtain Ontario licensure.
Recognized as a subject matter expert in one or more mineral processing technologies, with a proven track record of solving complex technical challenges and providing specialist advice to project teams and clients.
Deep technical expertise in one or more areas such as comminution, flotation, pyrometallurgy, hydrometallurgy, ion exchange (IX), solvent extraction (SX), or solid‑liquid separation and filtration.
Experience working with mineral commodities such as critical minerals, precious metals, base metals or battery metals.
Extensive experience supporting multidisciplinary mining and mineral processing studies and projects, ideally within an engineering consulting environment.
Exceptional technical judgment, critical thinking and problem‑solving skills, with the ability to evaluate complex challenges, challenge conventional approaches and develop practical engineering solutions.
Strong client‑facing and communication skills, with the credibility and confidence to lead technical discussions, influence key decisions and build trusted relationships with clients.
Experience with metallurgical process simulation software such as METSIM, SysCAD or Aspen Plus.
A collaborative approach with a genuine interest in mentoring engineers, sharing specialist knowledge and contributing to technical excellence across the organization.
Field experience in construction, commissioning or plant operations would be an asset, along with a willingness to travel as required.
We’re committed to a fair and human hiring process. All applications are reviewed by a member of our team and are not automatically screened or rejected by AI.
Why Ausenco?We Support Individual Growth And Aim To Allow You To Work In a Way That Plays To Your Strengths. Beyond a Competitive Remuneration Package We Offer
Career advancement
- Embark on a journey of continuous growth through technical training, mentorship initiatives, and networking opportunities.
Work Life Balance
– Experience the best of both worlds with our hybrid work model, allowing you to balance office days with working from home;
and progressive parental leave benefits to foster family needs and professional life.
Holistic approach to wellness
– Take a proactive approach to your overall wellbeing. Access to confidential counselling, information services and a benefits program that supports your health & wellness.
Accessible leadership team
– Work with highly reputable industry leaders who value your contribution.
As a global company we embrace and encourage diversity in its fullest sense – gender identity, gender expression, sexual orientation, age, experience, nationality, colour, language, religion, location, disability, education, skills, working styles and time availability. Our work environments are based on mutual trust and respect for the rights and opportunities of every individual.
We are an equal opportunity employer and are committed to providing employment accommodation in accordance with the Ontario Human Rights Code and the Accessibility for Ontarians with Disabilities Act, 2005 (AODA). Ausenco will provide accommodations to job applicants with disabilities throughout the recruitment process. If you require an accommodation, please notify us and we will work with you to meet your needs.
Salary Range:
$180,000 - $240,000 annually
Expected Salary:
Variation in salary is determined by factors such as qualifications, relevant years of experience, and prevailing market conditions for the specific role.
Join us and work a better way.
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