Mechanical Commissioning Engineer

About Us 

Apollo is a Mission-Critical Infrastructure Engineering, Construction, Commissioning, and Operations Support Services Company. We serve mission-critical industries globally with commissioning, emergency response, operations support, and owner's representative services. Apollo is currently executing projects in multiple states in the United States, in Canada and Brazil. 

Since our inception, we have built a commissioning firm based on trust, one relationship at a time. We hire the best people who can handle critical systems, love challenges, and thrive in a dynamic environment. We focus on understanding each client's needs and are relentless in meeting them. 
 

Location 

Multiple U.S. Locations – Atlanta, GA; Ashburn, VA; Chicago, IL; Phoenix, AZ; Columbus, OH; Portland, OR; Jackson, MS

Job Description 

We are seeking skilled and motivated professionals of varying 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. 

All newly hired team members entering Apollo’s Commissioning Engineer career path begin in the role of Commissioning Engineer in Training (Cx-EIT). In this role, team members develop and apply technical commissioning knowledge, engineering judgment, and field experience through structured project execution, mentorship, and progressive responsibility within mission-critical environments.

Cx-EIT team members actively contribute to project execution activities, including technical reviews, systems evaluations, commissioning documentation development, field inspections, functional testing, issue identification and resolution support, and coordination with project stakeholders.

Upon successful demonstration of technical competency, achievement of qualification and performance milestones, and management approval, team members may progress into the role of Mechanical Commissioning Engineer. Progression timing may vary based on individual performance, project experience, business needs, and completion of required development objectives.

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. 

Education 
Bachelor’s degree in Mechanical Engineering, equivalent professional experience or experience in a related field (including but not limited to mechanical field service technician, data center technician or military). 

Key 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. 

Physical Demands 

The following physical demands must be met to successfully perform the essential functions of this role. Reasonable accommodations may be made to enable individuals with disabilities to perform these functions: 

• Frequently manipulating, moving, or grasping small parts, devices, or tools. 

• Frequently required to remain in a stationary position. 

• Frequently moving through office areas, critical facilities and other environments, including tight and confined spaces. 

• Exposure to low/high temperatures and outdoor elements such as precipitation and wind. 

• Working and walking on different types of terrain on active construction sites (e.g., concrete flooring, gravel, unpaved roads). 

• Frequently ascending and descending stairs and ladders to access equipment. 

• Occasionally positioning oneself under or over equipment. 

• Occasionally moving equipment weighing up to 50 pounds. 

Qualifications 

• 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. 

Experience Levels 

• Entry-Level: 0-1 years of experience in commissioning or a related field, with a focus on mission-critical facilities. 

• Mid-Level: 2-5 years of experience with demonstrated project management capabilities and a solid understanding of data center systems. 

• Experienced-Level: 6+ years of experience, with extensive knowledge of complex mission-critical systems and leadership experience. 

Prerequisites for Employment 

• Successful background check, including pre-employment drug screening 

• US citizens, permanent residents or any candidate with eligibility to work in the US
  

What We Offer 

Apollo offers its employees a full benefits package, including: 

• Health and wellness plans (medical, dental, vision, life, disability) 

• Flexible spending accounts 

• Paid time off, holidays, and more 

• Paid parental leave 

• 401K plan with immediate match benefits 

• Employee assistance programs 

• Tuition reimbursement programs 

• Employee discount programs 
     

Apollo challenges the brightest, most talented, and driven individuals in the industry by providing an environment that embraces initiative, diversity, and achievement. We are an Equal Employment Opportunity, Affirmative Action employer supporting women, minorities, veterans and people with disabilities. We participate in the Department of Homeland Security E-Verify program.