Critical Environments Operating Engineer

JLL • Richardson, TX

3d • 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 support continuous facility operations. The engineer works with facilities management teams, vendors, and clients to follow operational protocols, minimize risk, and respond promptly to system irregularities. The role requires a strong technical foundation, attention to detail, and the ability to perform under pressure in a highly regulated, always-on environment.

This is an on-site position in the Dallas-Fort Worth/Richardson, Texas area. It requires availability for rotating shifts, weekends, holidays, and on-call emergencies as needed. Visa sponsorship is not provided; candidates must be authorized to work in the United States without sponsorship.

Requirements

• High school diploma or equivalent.
• Minimum of 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.
• Ability to pass background and drug screening requirements.
• Authorization 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 industry standards and compliance requirements for critical environments, such as Uptime Institute or similar frameworks.
• Prior experience working 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 emergency situations and system alarms, following established escalation and incident response procedures.
• Maintain accurate logs, work orders, and documentation related to 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, or 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.
• A 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