Senior Mechanical Field Engineer

Saint John, NB
On-site
Posted Oct 14, 2026
1 position

$95,207–$148,524 / year

Opens an external site

Employment type: Full-time
Experience level: Lead · 10+ years
Minimum education: Bachelor’s degree
Apply by: Nov 3, 2026
Posting language: English
Working hours: 40 hours per week

Job summary

Lead field engineering support for refinery operations, maintenance, and capital projects while acting as the primary liaison between construction, operations, and engineering teams. Supervise and mentor the field engineering team while ensuring compliance with safety standards and technical documentation requirements.

Job details

As a Senior Mechanical Field Engineer on our Engineering Services team, you will serve as a key mechanical engineering resource supporting refinery operations, maintenance activities, and the execution of capital and expense projects across Irving Oil's operations. Your goal will be to provide practical, field-focused mechanical engineering expertise that supports the safe, reliable, and efficient operation of Canada's largest oil refinery and our network of terminal facilities across Atlantic Canada and the U.S. eastern seaboard. Your success will be demonstrated through strong field engagement, technical leadership, successful project execution, and the delivery of fit-for-purpose engineering solutions that advance our safety, reliability, production, efficiency, and energy transition objectives. If you are interested in this exciting opportunity with Irving Oil, please apply by November 1, 2026. What We Offer: Work Environment – Work onsite and grow within Canada’s largest Refinery, with strong safety culture, access to a fitness facility, an onsite medical team, and a café Competitive Compensation – Including an annual bonus plan, and pension plan Flexible Benefits Plan – In effect from day one and offers three levels of coverage to select from to meet your unique, personal needs Paid Vacation – Plus an annual option to purchase additional vacation, too Wellness Support – With an annual wellness allowance, paid personal care days and a 24/7 Employee & Family Assistance Program Opportunity to give back to some amazing causes in our community – Choose when and where to make an impact with a paid volunteer day, company volunteer opportunities, and a donation matching program Your Responsibilities: Lead field engineering support for refinery operations, maintenance, turnarounds, and capital projects Act as the primary field engineering liaison between Construction, Operations, Maintenance, Project Execution/ Project Managers and Engineering teams, supply management and purchasing Supervise, mentor and delegate work within field engineering team, Conduct field assessments, troubleshoot equipment issues, and develop practical engineering solutions Create, review, and approve engineering work packages, designs, repairs, and technical documentation Support Management of Change (MOC), Field Change Notice (FCN), and contractor Request for Information (RFI) processes Provide technical oversight during equipment installation, repair, piping modification, and commissioning activities Ensure compliance with applicable codes, standards, and engineering requirements Support reliability initiatives, root cause investigations, and continuous improvement efforts Mentor, coach, and develop Engineers, Technologists, Technicians and coop students Participate in construction and project meetings such as kick-off meetings, readiness reviews, and status meetings Your Skills: Safety-first mindset Strong analytical, troubleshooting, and problem-solving skills Excellent communication, presentation, and stakeholder management abilities Proven leadership and mentoring capabilities Ability to lead multidisciplinary teams and collaborate across functions Sound technical judgment and decision-making skills Strong understanding of construction, maintenance, inspection, and commissioning practices High level of ownership, accountability, and initiative Ability to work in industrial environments and wear PPE as required Your Experience: Bachelor's degree in Mechanical Engineering P.Eng. designation in New Brunswick or immediate eligibility for registration 10+ years of mechanical engineering experience in refining, petrochemical, oil and gas, or heavy industrial environments 5+ years of refinery or related process industry experience Experience supporting capital projects, maintenance activities, equipment installations, and brownfield modifications Experience with pressure vessels, heat transfer equipment, refractory-lined equipment, and other fixed mechanical assets, and piping systems Practical knowledge of welding, metallurgy, non-destructive examination (NDE), and mechanical integrity programs Working knowledge of ASME Section VIII, ASME B31.3, ASME BTH-1, API 510, API 660, API 661, and NBIC Familiarity with repair, alteration, and CRN registration requirements for pressure equipment in Canada Experience with Management of Change (MOC) processes Working knowledge of Compress and NozzlePro is an asset The expected salary range for this position is $95,207 - $148,524. Placement within range will be based on relevant experience, qualifications, and skills. Irving Oil is committed to supporting a diverse and inclusive work environment. We thrive on the good energy that’s created when our people from different backgrounds, identities, cultures and experiences share their unique perspectives. Diversity is key to our success and inclusion is everyone’s responsibility. Job Requirements - Work Experience Job Requirements - Education

What you’ll do

Requirements

Requires a Bachelor's degree in Mechanical Engineering and a P.Eng. designation in New Brunswick or immediate eligibility. Candidates must have 10+ years of mechanical engineering experience in heavy industrial or refining environments.