Mechanical Commissioning Engineer III - Remote
Company: Reliant Critical Infrastructure
Location: Tempe
Posted on: October 28, 2025
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Job Description:
Job Description About the Role The Mechanical Commissioning
Agent III executes commissioning of data center critical systems
including generators, CRAC, roof top AHUs, humidifier, pre-action
and wet sprinkler systems, chillers, cooling towers, chill water
pumps, exhaust fans and digital electrical distribution equipment.
This person is responsible for conducting reviews of client design
packages, monitoring, and analyzing FAT and First of Kind equipment
Level 3 tests and developing O&M documentation to serve as a
reference for data center mechanical equipment. The Data Center
Commissioning Engineer is critical in the company's continued
success and growth by ensuring that testing has been executed and
the client's data centers operate at maximum operational
efficiency. Responsibilities Manage projects, plans, provide and
gather specifications, and execute assignments in a
multidisciplinary engineering Commissioning role for large facility
projects. The commissioning experts adhere to a thorough quality
management/QC process and procedures. Participate in daily
commissioning activity meetings which services include: Equipment
pre-start-up and start-up procedures; Development of standard
operating procedures (SOP's) and Methods of Procedures (MOPs);
Comprehensive Commissioning documentation. Prepare commissioning
test procedures and reports; Develop and maintain commissioning
logs, equipment checklist, and other tools to track commissioning
projects. Write comprehensive reports which include the following
sections: recommendations for optimizing building operations,
functional checklists, list of deficiencies, equipment operation
and maintenance manuals. Review design criteria, specifications,
drawings, equipment submittals, and other documentation pertinent
to commissioning. Integrated system testing; Load Bank Testing;
Compilation of all testing procedure results. Develop and
administer functional tests for various systems, such as:
electrical distribution systems, UPS, standby generators, etc.
System Assembly; Commission plan preparation; Follow company QC
process and procedures. Help lead and manage any external
resources; Schedule and direct periodic commissioning meetings;
Attend construction and coordination meetings if required for the
project. Interface with clients, contractors, equipment vendors and
owners’ agents as needed; Execute project assignments; Interface
with project contractors, vendors, and testing technicians;
Interact with all facets of the company: engineering, design, etc.
Verify results of test reports. Able to travel as needed (up to
approx. 75% but varies). Assist with field troubleshooting of
commissioned equipment as needed. Field experience in the operation
and application of Power Quality Analyzers, Power Disturbance
Analyzers, Data loggers, and related system testing equipment.
Qualifications Bachelor's / Associates Degree in engineering a plus
or comparable experience. 5-10 years experience in the Engineering
Field. A/E experience working in complex facilities or mission
critical projects a big plus. Previous Data Center / Mission
Critical experience a must. Electrical equipment testing experience
in a Critical Facilities / facility environment. Experience with
IEEE/ASHRAE procedures and protocols a plus. Possess basic
knowledge of systems design for various projects. Required Skills
Experience using Microsoft Word, Excel, and Microsoft Project.
Keywords: Reliant Critical Infrastructure, Tempe , Mechanical Commissioning Engineer III - Remote, Engineering , Tempe, Arizona
