[2026] Multiple U.S. Locations - Data Center Commissioning Engineer (CxE) - Mechanical - All Levels

Apollo Mission Critical Engineering•Atlanta, GA

2d•Onsite

About The Position

We are seeking skilled and motivated professionals of all experience levels to join our team as Data Center Mechanical Commissioning Engineers (CxEs). The Mechanical CxE will commission mechanical systems in data centers, ensuring they meet top performance and reliability standards. This role requires a deep understanding of mission-critical environments, meticulous attention to detail, and the ability to work effectively under pressure. Activities will include but are not limited to testing and/or validation of chillers, water loops/components, cooling distribution equipment, air handling units (AHUs), air conditioning units, fan coil units (FCUs), pumps, heat exchangers, cooling towers, humidification systems and Building Management and Automation Systems (BMS). Note, the Mechanical CxE should also have knowledge of the electrical components involved in the above mechanical systems, including electrical motors (for pumps, fans, and compressors), motor control centers (MCCs), automatic transfer switches (ATSs), variable frequency drives (VFDs), Control Panels, and electrical supply systems. This role involves supporting data center construction/commissioning activities, so working hours may include nights and/or weekends. This is an onsite, client-facing role that may require approximately 90% or more travel to various client locations.

Requirements

Proven experience in commissioning, designing, or constructing mechanical systems, especially in data centers or mission-critical environments.
Extensive knowledge of HVAC, electrical supply systems, and control systems.
Strong communication and interpersonal skills, with the ability to work effectively with cross-functional teams and clients.
Excellent problem-solving skills, adaptability and attention to detail.
Ability to read and interpret construction documents and specifications.
Skilled in using commissioning software and tools, including MS Office Suite; Mid-Level and Experienced-Level candidates should also be proficient with Procore and CxAlloy.
Ability to travel to different data center locations as needed.

Responsibilities

Conduct commissioning activities for mechanical systems, their electrical components and BMS systems in data centers.
Create and implement detailed commissioning plans, procedures, and checklists for Level 2, Level 3, Level 4, and Level 5 systems.
Review and evaluate design documents, submittals, and equipment specifications.
Conduct site inspections, functional performance tests, and system verifications.
Witness testing of all equipment during commissioning and validate sequence of operations.
Work closely with project teams, including contractors, engineers, and data center operators.
Help accomplish team goals both on-site and remotely as necessary.
Diagnose and resolve system performance, reliability, and safety issues.
Document results/findings and generate comprehensive commissioning reports.
Provide support to data center staff on system operation and maintenance.
Ensure adherence to industry standards, codes, and regulations.
Attend project meetings and offer technical expertise as needed to help accomplish team goals.
Other duties as assigned.