Commissioning Lead

Mantel Capture, Inc•Trois-Rivières, QC

8h•Onsite

About The Position

Mantel is developing the first molten-salt-based carbon capture technology designed to operate at the high temperatures found inside boilers, kilns, and furnaces — enabling highly efficient carbon capture that has not been possible until now. Carbon capture can be applied across industries to reduce emissions and achieve net-negative emissions. By solving for efficiency Mantel can cut costs substantially, unlocking carbon capture's role in reaching net zero emissions by 2050. The Commissioning Specialist works directly with the commissioning team to execute the startup of Mantel's first-of-a-kind demonstration system. You'll be on the ground running pre-commissioning checks, executing procedures, coordinating trades, and making sure the system comes up safely and to design intent. This is a field-heavy role. You'll spend significant time on-site at partner and host facilities, with shifts typically running 10 days on, 10 days off.

Requirements

7+ years of hands-on experience in industrial plant commissioning, construction, or operations
Relevant field experience and demonstrated commissioning competency
Experience with plant startups including pre-comm checks, punch lists, and managing last-minute scrambles
Ability to follow procedures, document everything, and not cut corners
Comfortable working in industrial environments: heat, noise, PPE, shift schedules, and tight coordination with trades
Ability to take direction well and communicate clearly
Ability to keep the Commissioning Director informed and surface issues early
Reliable and follows through without needing to be chased

Nice To Haves

French speaking is a plus

Responsibilities

Execute pre-commissioning and commissioning activities under the direction of the Commissioning Director: walkdowns, loop checks, interlock verification, flushing, leak testing, and startup sequencing
Work through punch lists methodically - identify, document, and close out items with contractors and trades on-site
Follow commissioning procedures precisely and flag deviations clearly and immediately
Manage day-to-day on-site activities with contractors, trades, and host-site operations personnel
Serve as a reliable, professional Mantel presence on the ground - keeping work moving safely and on schedule
Support the Commissioning Director in maintaining a well-organized, well-documented site at all times
Maintain accurate commissioning records: completed procedures, punch lists, test results, and field observations
Ensure documentation is complete, legible, and organized — the record you leave behind matters
Feed field observations and lessons learned back to the engineering and commissioning team
Execute all work in compliance with site safety requirements, LOTO procedures, and Mantel's operating standards
Participate in pre-job safety briefings, toolbox talks, and hazard assessments
Raise safety concerns immediately - no work is more important than a safe site

Benefits

Hands-on experience commissioning one of the world's first high-temperature molten-salt carbon capture systems
Direct mentorship and day-to-day collaboration with an experienced Commissioning Director
A meaningful role in Mantel's most important field work, with growing scope as the project portfolio expands
A central role in building one of the most exciting carbon capture companies in the world
Highly competitive pay based on experience, including equity
90% subsidized medical and dental healthcare coverage for employees, 50% for dependents (full extended benefits in Canada)
Unlimited vacation policy
Mental health personal days
Generous sick leave
A week-long winter break at the end of December
Health/Fitness stipend
Cell phone stipend
Paid parental leave