Mission Critical Engineer 1

The Mission Critical Engineer I (MCE 1) is responsible for supporting the safe, reliable, and efficient operation of mission-critical data center infrastructure. This position performs routine inspections, preventative maintenance, troubleshooting, operational procedures, and incident response across electrical, mechanical, controls, and life-safety systems.

The MCE 1 works under the direction of Mission Critical leadership and more experienced engineers while developing the technical knowledge and operational experience required to independently operate critical infrastructure.

Key Responsibilities

• Perform routine facility rounds and inspections of critical electrical and mechanical equipment.


• Monitor facility conditions, alarms, and equipment performance through BMS, and other monitoring systems.


• Identify abnormal equipment conditions and promptly escalate issues through the appropriate chain of command.


• Assist with troubleshooting and resolution of electrical, mechanical, controls, and facility-related issues.


• Perform and document preventative maintenance activities in accordance with established maintenance procedures and schedules.


• Support the operation and maintenance of critical equipment, including:
  
  
  
  • UPS systems
  
  
  • Generators
  
  
  • Automatic Transfer Switches (ATS)
  
  
  • Switchgear and electrical distribution equipment
  
  
  • Transformers
  
  
  • Chillers and cooling systems
  
  
  • Pumps and heat rejection equipment
  
  
  • CDUs and liquid-cooling infrastructure
  
  
  • BMS and EPMS systems
  
  
  • Fire and life-safety systems
  
  
  
  


• Execute approved Standard Operating Procedures (SOPs), Methods of Procedure (MOPs), and Emergency Operating Procedures (EOPs).


• Assist with equipment switching, shutdowns, startups, and maintenance activities under appropriate supervision.


• Respond to facility alarms and incidents and assist with restoring equipment and systems to normal operating conditions.


• Maintain maintenance records, equipment readings, and operational documentation.


• Support vendor and contractor activities while ensuring compliance with site safety and operational requirements.


• Participate in commissioning, testing, equipment turnover, and integrated systems testing as required.


• Maintain clean and organized electrical, mechanical, and operational spaces.


• Follow all site safety requirements, including electrical safety, LOTO, PPE, and energized-work procedures.


• Participate in ongoing technical training and qualification programs.


• Support 24/7 mission-critical operations, including shift work, nights, weekends, holidays, and on-call coverage when required.

Minimum Qualifications

• High school diploma or equivalent.


• Basic understanding of electrical and/or mechanical systems.


• Ability to read and understand equipment manuals, procedures, and basic electrical/mechanical drawings.


• Strong mechanical aptitude and willingness to develop knowledge of mission-critical infrastructure.


• Ability to safely use hand tools, meters, and other maintenance equipment appropriate to the individual's training and qualifications.


• Strong communication, documentation, and teamwork skills.


• Ability to remain calm and follow established procedures during critical events.


• Ability to work safely around energized electrical equipment and operating mechanical systems.


• Ability to lift, climb ladders, work in equipment spaces, and perform other physical activities associated with data center operations.

Preferred Qualifications

• Previous experience in data centers, critical facilities, electrical, HVAC, mechanical, industrial, military, or similar technical environments.


• Familiarity with UPS systems, generators, switchgear, ATS equipment, chillers, pumps, or building automation systems.


• Understanding of electrical one-line diagrams and mechanical system drawings.


• Familiarity with NFPA 70E and electrical safety practices.


• OSHA, electrical, HVAC, mechanical, or other relevant technical certifications.

Core Competencies

Safety – Consistently follows established safety procedures and recognizes potential hazards before beginning work.

Operational Discipline – Follows approved procedures and does not deviate from established operating practices without authorization.

Technical Development – Actively develops knowledge of site electrical, mechanical, controls, and critical infrastructure systems.

Communication – Clearly communicates equipment conditions, alarms, incidents, maintenance activities, and operational concerns.

Ownership – Takes responsibility for assigned tasks and follows issues through completion or proper turnover.

Teamwork – Works effectively with Mission Critical, Controls, Mechanical, Security, Construction, Commissioning, and other supporting teams.

Attention to Detail – Accurately records equipment readings, completes documentation, and identifies abnormal facility conditions.