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Added 7 mins ago
GC
Senior Materials Testing and Inspection Technician
GEI Consultants, Inc.
Barrie, ON
- $29 to $38 CAD / hour
- Full-time
Communicate field observations and test results with contractors, project managers, and supervisors.
Added 7 mins ago
AI
Senior Software Engineer – Core Java, Apache Spark, Python, SQL, Data Processing
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Montreal, QC
- Full-time
Design, develop, test, and maintain high-performance, scalable server-side applications using Core Java and Python
Added 7 mins ago
U
Forward Deployed Engineer
UST
Toronto, ON
- Full-time
Key skills: Python, data pipelines, REST/gRPC APIs, MLOps and LLM/AI workflows, semiconductor test data (STDF, wafer/lot data)
Added 7 mins ago
SH
MDRD Technician (CEN)
Scarborough Health Network
Toronto, ON · Scarborough, ON
- Part-time
MDRD competency test will be conducted, passing score of 80% required
Added 7 mins ago
RR
Staff Mechanical Engineer
Remote Robotic
Ottawa, ON · Kanata, ON
- $115,000 to $135,000 CAD / year
- Full-time
Define and execute environmental, structural, and reliability test programs.
Added 7 mins ago
RR
Senior Mechanical Engineer - Aero & Propulsion
Remote Robotic
Ottawa, ON · Kanata, ON
- $95,000 to $120,000 CAD / year
- Full-time
…propulsion systems, solve difficult engineering problems, and turn test data into practical design…
Added 7 mins ago
Sr Director RSM Marketing
Rogers Communications
Toronto, ON
Added 7 mins ago
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Fuel & Lube Technician (Lube Driver – Class 3)
Sureway Construction Group
Edmonton, AB
- Temporary
Drug and alcohol testing (swab-based or urine test)
Added 7 mins ago
T
Assistant Controller
Techo-Bloc
Longueuil, QC · Saint-Hubert, Quebec
- Full-time
After lunch, you’re in D365. A cost report isn’t pulling the way operations needs it to, so you test a fix with the systems team and document the change. Then you spend an hour on something…
Added 7 mins ago
NA
Heavy Equipment Operator (Haul Truck) (Suncor)
North American Construction Group Inc.
Fort McMurray, AB
- Temporary
Added 7 mins ago
NA
Heavy Equipment Operator (Dozer D9 - D11) (Kearl)
North American Construction Group Inc.
Fort McMurray, AB
- Temporary
Added 7 mins ago
NA
Heavy Equipment Operator (Haul Truck) (Suncor)
North American Construction Group Inc.
Fort McMurray, AB
- Temporary
Added 7 mins ago
Lifeguard
City of Edmonton
AB
Added 7 mins ago
AI
Industrial Mechanic
American Iron and Metal
Saint-Augustin-de-Desmaures, QC
- Full-time
Test repaired equipment to ensure proper operation and compliance with required standards;
Added 22 mins ago
RM
RN Registered Nurse
Ross Memorial Hospital
Kawartha Lakes, ON · Lindsay, ON
- Temporary
…their mother and family, and will only leave their mother if a test needs to be done or if there is a clinical need to more closely observe the…
Added 22 mins ago
CO
Sponsorship Program - Police Officers
City of Saint John
Saint John, NB
- Full-time
Must be able to pass the Physical Abilities Requirement Evaluation (PARE) test to police standards
Added 22 mins ago
W
Systems Integrator – Industrial Automation & SCADA
WSP
Vancouver, BC
- Full-time
Program, test, and commission control systems in live plant environments.
Added 22 mins ago
QA Co-op (8‑Month Term – January 4th Start | Final Year Students)
WISI
Pitt Meadows, BC
We’re seeking a local, final-year student with a passion for software development to join our QA team as a Software QA Test Developer (Co-op). You’ll help us achieve full CI/CD test and…
Added 22 mins ago
KI
Plumber
Key Industries
Saint John, NB
- Full-time
Test completed installation and repairs to ensure the proper operation
Added 22 mins ago
C
Marketing Engineer
Celebright
Ottawa, ON · Kanata, Ontario
- Full-time
Creative testing: generate and test distinct ad concepts, not variations of one headline.
Added 22 mins ago
R
Intermediate Business Analyst
Raise
Toronto, ON
- Contract
Test Automation & Quality Engineering – Develop and maintain automated test cases and regression testing frameworks for payment systems and operational platforms. Support end-to-end testing…
Added 22 mins ago
YD
Data Science Developer
York Digital Consulting Inc.
Toronto, ON
- Contract
Design, develop, test, and implement GenAI applications, intelligent agents, and AI-enabled solutions for priority business use cases.
Added 22 mins ago
CA
QC Coordinator/Inspector - Jansen
Cementation Americas
Alvena, SK
- Full-time
…specifications, applicable codes and standards, Inspection and Test Plans (ITPs), and client quality…
Added 22 mins ago
NH
MEDICAL LABORATORY ASSISTANT
Northern Health - BC
Fort St. John, BC
- Full-time
…testing, and/or Holter monitor testing as required, and explains test procedures. Performs routine equipment cleaning and…
Added 22 mins ago
5
Senior Facility Engineer – Mechanical
5C
Montreal, QC
- Full-time
Ability to read and interpret mechanical drawings, control sequences, commissioning reports, and test data.

Senior Facility Engineer – Mechanical

Montreal, QC, Canada

Full-time

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Job details

Job type: Full-time
Apply by: Dec 6, 2026
Posting language: English
Posted: Nov 6, 2026

Original job description

5C DATA CENTERS

Join the Future of Digital Infrastructure

Are you a passionate Senior Facility Engineer – Mechanical looking to make a meaningful impact? We're building the next generation of digital infrastructure powering hyperscalers, AI innovation, and high-performance computing across North America.

JOB TITLE

Senior Facility Engineer – Mechanical

DEPARTMENT

Engineering – Facility Reliability

LOCATION

Montreal, QC

WORK ARRANGEMENT

Hybrid

Travel Requirements

SALARY RANGE

Role Summary

5C is a full-stack AI digital infrastructure provider that designs, develops, and operates scalable AI factories and purpose-built data center campuses engineered for speed, density, reliability, sustainability, and long-term performance across North America.

As 5C's data center facilities transition from development into live operation, this role provides deep mechanical and cooling engineering authority for the operating portfolio. The Senior Facility Engineer – Mechanical is a senior technical anchor who owns the hardest live-site cooling and mechanical problems - from chilled water and air systems through liquid cooling for AI density - while mentoring engineers and setting the mechanical engineering bar for the function.

How We Work At 5C

Our core values guide how we collaborate, make decisions, support one another, and serve our customers. We're looking for people who embrace them and help us build something great.

What You Will Do

Act as the primary mechanical engineering technical authority for operational facilities, providing expertise in chilled water systems, air handling systems, pumping systems, CRAH/CRAC units, heat rejection systems, and liquid cooling solutions designed for high-density AI environments.
Lead root cause analyses, failure mode studies, and reliability assessments related to mechanical and cooling systems. Ensure the implementation, monitoring, and closure of corrective and preventive actions to maintain facility performance and resilience.
Review and approve operational procedures (MOPs, SOPs, and EOPs) as well as high-risk interventions involving cooling systems, evaluating their impact on redundancy, capacity, and facility condition. Provide senior technical expertise during critical incidents, abnormal operating conditions, and major alarms, while participating in the L3/L4 technical escalation rotation.
Represent the engineering team during design reviews, commissioning activities, Integrated Systems Testing (IST), and operational handovers. Identify single points of failure, redundancy losses, and thermal or capacity constraints; maintain technical documentation and control sequences; mentor engineers; and establish regional mechanical engineering technical standards.

What You Bring

Bachelor's degree in Mechanical Engineering or a closely related engineering discipline.
6+ years in data centers, critical facilities, or mission-critical mechanical/cooling infrastructure.
Strong command of chilled water and air systems, pumps, heat rejection, and data center cooling design.
Ability to read and interpret mechanical drawings, control sequences, commissioning reports, and test data.
Strong judgment, written communication, and the ability to remain calm and direct under pressure during live events.

Why Join 5C Data Centers?

At 5C, we believe great people build great companies. You'll build a rewarding career while helping shape the future of digital infrastructure - one of the fastest-growing industries in the world.

Career Growth

Build a rewarding career in one of the world's fastest-growing industries.

Industry Leadership

Help power the infrastructure behind AI and high-performance computing.

Entrepreneurial Culture

Your ideas matter - we empower employees to help shape our future.

Comprehensive Rewards

Competitive pay plus meaningful, lasting impact on the work you do.

Life at 5C

We're more than a workplace - we're a team of builders, innovators, and problem-solvers united by a shared purpose: creating infrastructure that powers the technologies transforming our world. Your voice matters here, and we encourage fresh ideas at every level.

Ready to Apply?

If this opportunity sounds like the right fit for you, we'd love to hear your story. Apply today and discover what your future could look like at 5C Data Centers.

5C Data Centers is an equal opportunity employer.

We celebrate diversity and are committed to creating an inclusive environment where everyone can thrive. 5C evaluates qualified applicants without regard to race, color, religion, gender, national origin, age, sexual orientation, gender identity or expression, disability status, or any other legally protected characteristic.

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More about this job

Responsibilities

Serve as the senior mechanical engineering authority for operational data centers, resolving complex cooling and mechanical issues and supporting critical incidents. Lead reliability investigations, review operational procedures and high-risk interventions, contribute to design reviews and commissioning, identify facility risks, and mentor engineers while establishing technical standards.

Requirements

A bachelor's degree in Mechanical Engineering or a closely related discipline and at least six years of experience in data centers, critical facilities, or mission-critical mechanical and cooling infrastructure are required. Candidates should have strong knowledge of data center cooling systems, be able to interpret mechanical drawings and commissioning data, and demonstrate sound judgment and clear communication under pressure.

Skills

Mechanical Engineering
Data Center Cooling
Chilled Water Systems
Air Handling Systems
Pumping Systems
CRAH/CRAC Units
Heat Rejection Systems
Liquid Cooling
Root Cause Analysis
Failure Mode Analysis
Reliability Assessment
Mechanical Drawings Interpretation
Control Sequences
Commissioning
Incident Response
Technical Mentoring

Benefits

Competitive Pay

Visa sponsorship

Not detected in the job text

Keywords

Data Centers
Digital Infrastructure
AI Infrastructure
High-Performance Computing
Facility Reliability
Mechanical Engineering
Chilled Water Systems
Air Handling Systems
Pumping Systems
CRAH/CRAC Units
Heat Rejection
Liquid Cooling
High-Density AI Environments
Root Cause Analysis
Failure Mode Studies
Reliability Assessments
Corrective Actions
Preventive Actions
MOPs
SOPs
EOPs
Critical Incident Response
L3/L4 Technical Escalation
Design Reviews
Commissioning
Integrated Systems Testing
Operational Handovers
Redundancy
Control Sequences
Thermal Capacity

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