Commissioning Engineer II (Mechanical)

QTS Data Centers; Glendale (AZ); On-site; USD 75,000 - 95,000; Full time

Job summary

QTS Data Centers seeks a Mechanical Commissioning Engineer L2 responsible for overseeing commissioning of data center systems. Key duties include ensuring operational standards during construction and commissioning, collaborating with project teams, and mentoring junior engineers. Candidates should have 3-7 years of relevant experience and proficiency in MS Office. Travel to various sites across the U.S. is required.

The role emphasizes strong analytical skills and the ability to develop technical solutions.

Qualifications

• 3-7 years of technical or equivalent workplace training.
• Extensive background in mechanical systems and building management systems.
• Ability to travel to different Data Center locations.

Responsibilities

• Assist in construction activities ensuring operational standards.
• Carry out commissioning activities ensuring systems validation.
• Monitor issues during commissioning, collaborating with project teams.
• Create and review commissioning documentation for accuracy.
• Witness testing of equipment to validate operations.
• Collaborate with teams for seamless system integration.
• Implement quality control measures during commissioning.
• Mentor junior engineers.

Skills

Technical expertise

Analytical skills

Strong communication skills

Team-oriented mindset

Knowledge of mechanical systems

Tools

MS Office Suite

Job description

Mechanical Commissioning Engineer L2

The Mechanical Commissioning Engineer L2 is responsible for Level 3, 4 and 5 commissioning of base building systems and components of a Data Center environment. This role will oversee, document, and track various aspects of commissioning activities including testing and validation of connectivity, life safety, chillers, water loops, cooling distribution equipment, pumps, control valves, split units, humidifiers, sequence of operations, and building management and automation systems. The role supports construction/commissioning activities which may include nights and/or weekends.

This role may require an estimated 30%–50% travel to other sites around the U.S.

Responsibilities

• Assist in all site construction activity and installations, in coordination with QTS Development Team and external resources, ensuring system design, installation, and testing meet operational standards.
• Carry out comprehensive commissioning activities, ensuring all systems are installed, tested, and validated per industry standards and client specifications.
• Monitor issues during commissioning, working closely with the project team to resolve technical challenges and provide feedback to program management for continuous improvement.
• Create or review detailed commissioning documentation, including test procedures, reports, and as‑built documentation, ensuring accuracy and completeness.
• Witness testing of all equipment during commissioning to validate sequence of operations and receipt of all operational documentation.
• Collaborate with cross‑functional teams—design engineers, project managers, contractors, commissioning agents, and facilities operations—to ensure seamless integration of systems during commissioning without impacting operational campus sections.
• Implement quality control measures to meet the highest standards during build and commissioning, complying with regulatory requirements and industry best practices.
• Mentor junior Commissioning Engineers to develop the team.

Basic Qualifications

• Three to seven years of technical, military, or equivalent workplace training.
• Extensive background in building maintenance, fire detection/suppression systems, mechanical cooling systems, and building management systems (BMS).
• Ability to travel to other Data Center locations as required.
• Proficiency with MS Office Suite.

Preferred Qualifications

• Experience in data center engineering, commissioning, project management, or equivalent.
• Basic understanding of mechanical systems used in a data center environment.
• Previous work developing and reviewing commissioning documentation.

Knowledge, Skills, And Abilities

• Ability to analyze system operations, identify problems, and implement corrective action.
• Advanced knowledge of mechanical systems used in a data center.
• Ability to acquire and apply job‑related knowledge within guidelines and expectations.
• Ability to develop solutions and technical plans for projects.
• Strong written, verbal, and interpersonal communication skills.
• Team‑oriented mindset.
• Computer skills, including MS Office, Outlook, and web‑based applications.
• Physical capability for frequent typing, standing, walking, pushing, pulling, bending, reaching, and lifting up to 50 lbs, with heavier lifts performed with assistance or aids.

We conform to all laws, statutes, and regulations concerning equal employment opportunities and affirmative action. We strongly encourage women, minorities, individuals with disabilities, and veterans to apply. We are an equal‑opportunity employer; all qualified applicants will be considered without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, age, disability status, genetic information, family and medical leave, protected veteran status, or any other characteristic protected by law. We prohibit retaliation for complaints or investigations related to discrimination.

QTS is committed to providing reasonable accommodations for individuals with disabilities. If you need an accommodation, please email [e-mail] with your request and contact information.