Critical Engineer

JLL; Plano (TX); On-site; USD 70,000 - 100,000; Full time

Job summary

JLL is seeking a Critical Engineer to protect mission-critical infrastructure, including fire/life safety, HVAC, UPS, ATS, generators, and switchgear, in data centers and 24/7 facilities. You will monitor systems, troubleshoot, and coordinate repairs to ensure uninterrupted operations.

The role requires after-hours and weekend availability in a fast-paced, highly secure environment. Plano, TX-based position with standard daytime schedule plus on-call coverage to meet client needs.

Qualifications

• High school diploma or GED.
• Minimum 3 years in data center or critical facility environments.
• Valid driver's license.
• Proficiency with Word and Excel.
• Availability to work after hours and weekends.

Responsibilities

• Command the nerve center of building systems and emergency backup systems to protect assets.
• Analyze complex system operations and implement swift solutions to prevent downtime.
• Perform installations and repairs across plumbing, electrical, mechanical, and control systems.
• Guard critical equipment including UPS, generators and cooling infrastructure.
• Oversee contractor activities to meet standards in critical environments.
• Document emergency protocols and maintain meticulous records.
• Provide after-hours and weekend coverage as needed to maintain operations.

Skills

Word & Excel

Customer service

Education

High school diploma or GED

Job description

What this job involves:

As a Critical Engineer at JLL, you'll become the frontline defender of mission-critical infrastructure that powers the digital backbone of modern business. This isn't just a maintenance position—it's a role where your technical expertise directly protects millions of dollars in digital infrastructure and ensures uninterrupted operations for essential services around the clock. You'll master sophisticated building systems including fire/life safety, advanced HVAC, electrical infrastructure such as UPS, ATS, generators, and primary switch gear that simply cannot fail. We embrace more innovative ways of working and prioritize opportunities to strengthen and advance your career, giving you the chance to transform into a multi-disciplined technical expert while working with cutting-edge systems in critical environments including data centers and facilities that operate 24/7/365.

Critical Engineer- JLL

What this job involves:

As a Critical Engineer at JLL, you'll become the frontline defender of mission-critical infrastructure that powers the digital backbone of modern business. This isn't just a maintenance position—it's a role where your technical expertise directly protects millions of dollars in digital infrastructure and ensures uninterrupted operations for essential services around the clock. You'll master sophisticated building systems including fire/life safety, advanced HVAC, electrical infrastructure such as UPS, ATS, generators, and primary switch gear that simply cannot fail. We embrace more innovative ways of working and prioritize opportunities to strengthen and advance your career, giving you the chance to transform into a multi-disciplined technical expert while working with cutting-edge systems in critical environments including data centers and facilities that operate 24/7/365.

What your day-to-day will look like:

• Command the nerve center of building systems including mission-critical fire/life safety, advanced HVAC, sophisticated electrical infrastructure, and emergency backup systems that protect valuable digital assets
• Act as a technical detective who analyzes complex system operations, identifies problems before they expand, and implements swift solutions that prevent costly downtime
• Execute precision installations and repairs across plumbing, electrical, mechanical, and control systems with the versatility of a multi-disciplined technical expert
• Serve as the guardian of critical equipment including UPS systems, generators, and specialized cooling infrastructure, ensuring flawless operation at all times
• Orchestrate and oversee contractor activities to ensure all work meets the exacting standards required in critical environments
• Champion meticulous documentation practices and emergency protocols that safeguard operations during high-pressure situations
• Provide after-hours and weekend coverage as needed to maintain continuous operations and avoid client disruption

Required qualifications:

• High school diploma or GED
• Minimum 3 years of hands-on experience in data center or critical facility environments, specifically with UPS systems, emergency generators, and switch-gear
• Valid driver's license
• Proficiency with computer applications including Word and Excel
• Proven track record of delivering outstanding internal and external customer service
• Availability to work after hours and weekends as required to maintain uninterrupted operations

Preferred qualifications:

• Master or Journeyman Electrical Certification or active Electrician License
• Additional technical certifications in HVAC, plumbing, or building automation systems
• Experience with building management systems and computerized maintenance management software
• Knowledge of fire/life safety systems and emergency response protocols in critical environments
• Familiarity with precision cooling systems and raised floor infrastructure common in data centers

Location:

Plano,TX

Schedule:

Monday through Friday, 7:00 AM to 4:00 PM schedule, with required evening and weekend work to meet client operational needs and respond to emergency situations.