Operating Engineer, Data Centers

The Data Center Engineer is responsible for maintaining, monitoring, and optimizing critical data center infrastructure to ensure maximum uptime and operational efficiency. This role requires hands-on technical expertise with mission-critical systems including power distribution, cooling systems, fire suppression, security systems, and building automation.

Infrastructure Operations & Maintenance

Monitor and maintain critical data center infrastructure including UPS systems, generators, PDUs, CRAC/CRAH units, chillers, and associated mechanical and electrical systems.

Perform preventive maintenance on all critical equipment according to established schedules and manufacturer recommendations.

Conduct regular inspections of data center facilities to identify potential issues before they impact operations.

Respond to alarms and equipment failures promptly, troubleshoot issues, and execute corrective actions to restore service.

Maintain accurate logs of all maintenance activities, equipment performance metrics, and incident reports.

System Monitoring & Performance

Monitor Building Management Systems (BMS) and Data Center Infrastructure Management (DCIM) platforms to track environmental conditions, power usage, and equipment performance.

Track and analyze key performance indicators including PUE (Power Usage Effectiveness), temperature/humidity levels, and equipment efficiency.

Identify trends and anomalies in system performance and recommend corrective actions or improvements.

Ensure environmental conditions remain within specified parameters to protect critical IT equipment.

Change Management & Projects

Participate in planned maintenance windows, system upgrades, and equipment installations.

Support data center expansion projects and infrastructure refresh initiatives.

Execute change requests following established change control procedures to minimize risk.

Coordinate with vendors and contractors during equipment installations, repairs, and commissioning activities.

Emergency Response & Business Continuity

Respond to emergency situations including power failures, cooling system malfunctions, and fire alarm activations.

Execute emergency procedures according to established protocols and escalate issues as appropriate.

Participate in on-call rotation to provide 24/7 coverage for critical systems.

Support disaster recovery testing and business continuity exercises.

Documentation & Compliance

Maintain accurate as-built documentation, standard operating procedures, and equipment records.

Ensure compliance with safety regulations, building codes, and industry standards.

Complete required training and maintain certifications relevant to data center operations.

Document root cause analysis for incidents and implement preventive measures.

Education & Experience

Associate's degree in Electrical/Mechanical Engineering, Facilities Management, or related technical field, OR equivalent combination of education and experience.

3-5 years of experience in data center operations, critical facilities management, or industrial/commercial building maintenance.

Hands-on experience with mission-critical electrical and mechanical systems.

Technical Skills

Strong understanding of electrical systems including UPS, generators, switchgear, PDUs, and power distribution (single-phase and three-phase).

Working knowledge of HVAC systems, particularly precision cooling units (CRAC/CRAH), DX Systems, and air handling systems.

Familiarity with Building Management Systems (BMS) and monitoring platforms.

Ability to read and interpret electrical/mechanical drawings, schematics, and technical documentation.

Basic understanding of data center networking and IT infrastructure (helpful but not required).

Certifications (Preferred)

Data Center Certified Associate (DCCA) or similar data center credential.

Electrical or HVAC trade certification/license.

OSHA safety training.

First Aid/CPR certification.

Core Competencies

Strong troubleshooting and problem-solving abilities with systematic analytical approach.

Excellent attention to detail and ability to work with precision in high-stakes environment.

Effective communication skills for coordinating with team members, vendors, and stakeholders.

Ability to work independently with minimal supervision and make sound decisions under pressure.

Strong safety mindset and adherence to safety protocols.

Physical ability to lift up to 50 lbs, work in confined spaces, and stand/walk for extended periods.

Environment: Climate-controlled data center environment with exposure to noise from cooling and power equipment. May require working in server rooms, electrical rooms, and mechanical spaces.

Schedule: This is a graveyard shift from 11 PM - 7 AM. Rotating shifts including nights, weekends, and holidays. Participation in on-call rotation required for emergency response.

Physical Requirements: Ability to climb ladders, work at heights, navigate tight spaces, and perform physical tasks associated with equipment maintenance.

If this job description resonates with you, we encourage you to apply, even if you don’t meet all the requirements.  We’re interested in getting to know you and what you bring to the table!

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Pursuant to the Los Angeles Fair Chance Initiative for Hiring Ordinance, JLL will consider for employment all qualified Applicants, including those with Criminal Histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance.

Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Accepting applications on an ongoing basis until candidate identified.