Senior Commissioning Engineer

The Senior Commissioning Engineer (SCE) is responsible for the technical delivery of commissioning services for one or more assigned data center projects, primarily in their area of expertise (electrical, mechanical, and/or controls) and is the L5 commissioning technical lead in their area(s) of expertise on one or more assigned projects, working closely with the Commissioning Project Manager (CxPM) for assigned project(s). This is a highly cross-functional role, partnering closely with L5 internal teams, external project stakeholders, and clients to deliver projects on time, on budget, and without incident.

Project Planning & Execution 

• Participate as requested by Commissioning Team leadership in development of L5 commissioning services proposals in response to RFPs and requests for qualifications / pricing.  

• Supports the CxPM to identify L5 team staffing and location / travel requirements to effectively execute assigned project(s).  

• Support the training of, and provide day-to-day direction to, junior commissioning team members.  

• Support the development of project specific Commission Plan(s) and helps the CxPM facilitate review and acceptance by project stakeholders.  

• Perform commissioning focused reviews of project design packages, specifications, OPRs, BODs and submittals. 

• Develop commissioning related RFIs as required to clarify project commissioning requirements. 

• Develop project specific commissioning test plans and test scripts for assigned infrastructure and help CxPM facilitate review and acceptance of test documents by project stakeholders.  

• Key developer of the sequence of commissioning activities in collaboration with CxPM, client, contractors, vendors and Engineers of Record (EOR). 

• Develop load bank plans and load bank requirements for performance of load testing, facilitate review and acceptance by project stakeholders.  

• Develop temporary power plans as required for commissioning execution, facilitate review and acceptance by project stakeholders.  

• Attends, documents and reports results of assigned factory witness testing.  

• Leads the onsite and offsite commissioning execution for electrical, mechanical and/or controls & monitoring systems based on SCE area of expertise.  

• Provides day-to-day technical direction and guidance to internal and external commissioning team members to help coordinate and execute the commissioning plan and sequence of testing.  

• Monitors and documents result of contractor and vendor equipment receipt, installation, pre-startup and start-up activities.  

• Performs field QA inspections of equipment material condition, submittal and shop drawing adherence and proper installation methods by installing contractor.  

• Review and comment on contractor TAB and / or NETA test plans for compliance with project requirements and observes and / or reviews tests results (as required based on project requirements).  

• Coordinates and directs contractors and equipment vendors in the functional performance testing of assigned infrastructure, and documents test results inclusive of issue generation.  

• Coordinates and directs contractors and equipment vendors in the integrated systems testing (IST) of assigned infrastructure, and documents test results inclusive of issue generation.  

• Regularly attend and participate in project commissioning meetings (onsite and offsite), support CxPM with project commissioning status reporting, and regularly update project stakeholders on commissioning status. 

• Coordinate closely with L5 commissioning team, client, construction management and contractor teams so pre-startup, functional and integrated systems testing are planned and executed effectively and efficiently. 

• Support CxPM with project commissioning closeout, including aggregation of commissioning reports, systems manuals, as-built documentation and support the transition to Operations program as applicable on assigned project(s).   

Safety, Quality & Risk Management 

• Help enforce a zero-incident safety culture, including electrical safety, lockout/tagout, work permitting, and site access requirements. 

• Help identify, document, and mitigate risks to schedule, quality and safety, and escalate issues early to CxPM with clear recommendations for resolution. 

• Hold the project team accountable to applicable project specifications, quality standards, client requirements, and code and regulatory compliance. 

• Possess a strong working knowledge of the commissioning guidelines and principles contained in ASHRAE Guideline 0.  

• Batchelor's degree in Engineering, or a related technical field, or equivalent technical experience. 

• Possess a recognized industry commissioning certification or in pursuit of obtaining certification.  

• 5+ years of continuous data center commissioning experience in US and / or Canada.  

• Deep working knowledge of either (1) critical power and / or (2) critical cooling infrastructure design and operation, and the methods and procedures used to test and commission same.   

• Experience executing commissioning on data center projects > 25MW in capacity utilizing liquid cooling infrastructure strongly desired. 

• Strong understanding of construction safety standards, including OSHA requirements and NFPA 70E. 

• Strong written and verbal communication skills, with the ability to lead junior team members as well as subcontractors and consultants. 

• Proven ability to manage multiple concurrent priorities and deadlines under pressure. 

• Proficiency with project management and scheduling tools (e.g., Microsoft Project, Primavera P6, Procore) and Microsoft Office/Excel. 

• Strong proficiency with commissioning management platforms (e.g. Cx Alloy, BIM360, ACC, Facility Grid).  

• Willingness to travel 50-75% in support of project execution (variable based on project location). 

• PE and / or PMP certifications are an asset for this role but not specifically required. 

• Experience working as a third-party consultant for hyperscale, colocation, or enterprise data center clients preferred. 

• Hold US or Canadian citizenship.

L5 Mission Critical is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy), sexual orientation, gender identity or expression, national origin, age, disability, genetic information, veteran status, or any other characteristic protected by federal, state or local law.