CAI is seeking Mechanical Commissioning Engineering Interns to support our Mission Critical team on data center projects. This internship provides the opportunity to learn how mechanical infrastructure systems are tested, validated, and brought online in mission-critical environments. Interns will assist the commissioning team in reviewing design documents, supporting equipment inspections, participating in system testing, and helping document commissioning activities. This role offers exposure to mechanical systems such as air handling units, chillers, cooling systems, and building automation systems used in modern data centers.

Key Responsibilities

• Support commissioning engineers with mechanical system testing and documentation.
• Assist with reviewing mechanical drawings, equipment submittals, and commissioning checklists.
• Participate in equipment inspections and facility walkdowns.
• Help document installation and testing activities to confirm systems meet design intent.
• Support development of commissioning test scripts and procedures.
• Assist with monitoring and documenting system testing results.
• Contribute to daily commissioning reports and project documentation.
• Observe and participate in vendor equipment testing and factory witness tests when applicable.
• Support coordination with contractors, vendors, and project teams.
• Maintain strong focus on safety practices during all project activities.

Learning Opportunities
Interns will gain exposure to:

• Data center mechanical infrastructure systems
• Commissioning processes and testing methodologies
• Building Automation Systems (BAS/BMS)
• Air handling systems, chillers, and cooling infrastructure
• Construction and startup of mission-critical facilities
• Collaboration with multidisciplinary engineering and construction teams

Qualifications

• Currently pursuing a Bachelor’s degree in Mechanical Engineering, Electrical Engineering, or a related engineering discipline
• Interest in data centers, commissioning, or mission-critical facilities
• Basic understanding of mechanical systems such as HVAC or fluid systems
• Strong problem-solving and analytical skills
• Strong written and verbal communication skills
• Ability to work in a collaborative team environment
• Willingness to learn in both office and construction site environments

Additional Information

• Internship duration: Typically June through mid-August
• Some travel to project sites may be required
• Interns must be authorized to work in the United States
• Work may occur in active construction environments

About CAI

CAI was established in 1996, that has grown year over year to more than 800 people worldwide. We provide commissioning, qualification, validation, start-up, project management and consulting services related to operational readiness to FDA regulated and other mission critical industries.

Are You Ready?

Our approach is simple; we put the client’s interests first, we do not stop until it is right, and we will do whatever it takes to get there.

We are committed to living our Foundational Principles, both professionally and personally:

• We act with integrity
• We serve each other
• We serve society
• We work for our future

With employee ownership, one person’s success is everyone’s success; we work diligently to accomplish team goals. We place Team Before Self, demonstrate Respect for Others, and possess a can-do attitude. That is how we have grown exponentially.