Critical Environments Operating Engineer

JLL • Fort Worth, TX

4d • Onsite

About The Position

The Critical Environments Operating Engineer (S3) is responsible for the safe, reliable, and efficient operation of mechanical, electrical, and plumbing systems within mission-critical facilities such as data centers, where uptime and system integrity are paramount. The role monitors, maintains, and troubleshoots critical infrastructure—including HVAC, electrical distribution, generators, UPS systems, and fire/life safety systems—to ensure continuous facility operations. The engineer works closely with facilities management, vendors, and clients to uphold operational protocols, minimize risk, and respond swiftly to system irregularities in a highly regulated, always-on environment.

The position is on-site in the Dallas–Fort Worth/Richardson, Texas area and requires availability for rotating shifts, weekends, holidays, and on-call emergencies. Candidates must be authorized to work in the United States without visa sponsorship. Applications are accepted on an ongoing basis until a candidate is identified.

Requirements

• High school diploma or equivalent; technical or vocational training in HVAC, electrical, or mechanical systems is preferred.
• At least 3 years of experience operating and maintaining critical facility systems, such as data centers or similar mission-critical environments.
• Working knowledge of HVAC, electrical distribution, generators, and UPS systems.
• Ability to read and interpret mechanical and electrical schematics, blueprints, and equipment manuals.
• Strong troubleshooting skills and ability to diagnose and resolve equipment issues efficiently.
• Availability to work rotating shifts, weekends, holidays, and respond to on-call emergencies as needed.
• Valid driver's license and ability to pass background and drug screening requirements.
• Must be authorized to work in the United States without visa sponsorship.

Nice To Haves

• Technical or vocational training in HVAC, electrical, or mechanical systems.
• Universal EPA certification, DC-level or equivalent electrical license, or relevant trade certifications.
• Experience with building automation systems (BAS) and computerized maintenance management systems (CMMS).
• Familiarity with critical-environment industry standards and compliance requirements, such as Uptime Institute frameworks.
• Prior experience in a third-party facilities management or outsourced engineering environment.
• Strong communication skills and ability to interact professionally with clients, vendors, and team members.

Responsibilities

• Monitor building automation systems (BAS) and critical infrastructure equipment to identify and address operational anomalies.
• Perform routine inspections, preventive maintenance, and corrective repairs on mechanical, electrical, and plumbing systems.
• Respond to emergencies and system alarms in accordance with established escalation and incident response procedures.
• Maintain accurate logs, work orders, and documentation concerning equipment performance and maintenance activities.
• Support commissioning, testing, and startup of new or upgraded critical systems.
• Coordinate with contractors and vendors during scheduled maintenance, repairs, and system upgrades.
• Follow safety protocols, including lockout/tagout procedures and personal protective equipment requirements.

Benefits

• 401(k) plan with matching company contributions.
• Comprehensive medical, dental, and vision care.
• Paid parental leave at 100% of salary.
• Paid time off and company holidays.
• Early access to earned wages through Daily Pay.
• Supportive culture and comprehensive benefits package prioritizing mental, physical, and emotional health.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: High school or GED