Critical Environment Assistant Chief Engineer

JLL empowers you to shape a brighter way .

Our people at JLL are shaping the future of real estate for a better world by combining world class services, advisory and technology for our clients. We are committed to hiring the best, most talented people and empowering them to thrive, grow meaningful careers and to find a place where they belong.  Whether you’ve got deep experience in commercial real estate, skilled trades or technology, or you’re looking to apply your relevant experience to a new industry, join our team as we help shape a brighter way forward.

What this job involves:

As an Assistant Chief Engineer, Data Centers at JLL, you will play a critical role in supporting the safe, reliable, and efficient operation of mission-critical data center facilities. Working closely with the Chief Engineer, you will help oversee daily engineering operations, support technical teams, and ensure critical infrastructure systems perform at the highest standards of uptime and operational excellence. This role requires strong technical expertise across electrical and mechanical systems, the ability to respond effectively during critical incidents, and a proactive approach to preventative maintenance and continuous improvement. At JLL, we are collectively shaping a brighter way — for our clients, ourselves and our fellow employees — by delivering resilient, innovative solutions within complex critical environments. We believe the most effective teams are built when everyone is empowered to thrive, and this role offers opportunities to strengthen your technical expertise while contributing to a collaborative and high-performing engineering culture.

What your day-to-day will look like:

- Assist in managing day-to-day data center facility operations and maintenance activities to support maximum uptime, operational reliability, and client satisfaction.
- Support the Chief Engineer in supervising and mentoring engineering teams, technicians, and vendors while promoting a strong culture of safety, accountability, and teamwork.
- Monitor and analyze the performance of critical infrastructure systems including electrical distribution, UPS systems, generators, cooling systems, and building automation platforms.
- Coordinate and support preventative maintenance activities, inspections, and corrective repairs to ensure compliance with operational standards and maintenance schedules.
- Serve as a first point of contact for service-impacting electrical distribution events and assist with troubleshooting, escalation management, and incident mitigation efforts.
- Participate in critical incident response activities, including after-hours support, root cause analysis investigations, and implementation of corrective actions to prevent recurrence.
- Collaborate with cross-functional teams to support safety initiatives, compliance requirements, infrastructure upgrades, and operational improvement projects.
- Assist with technical reporting, documentation management, operational procedures, and client communications related to facility performance and engineering activities.
- Support capacity planning and infrastructure enhancement projects while embracing more innovative ways of working to improve operational efficiency and long-term reliability.

Required qualifications:

- Minimum of 5 years of experience in data center operations, mission-critical facilities management, or related engineering environments.
- Strong technical knowledge of data center infrastructure systems including power distribution, cooling systems, UPS equipment, generators, and building automation systems.
- Familiarity with industry standards and best practices including ASHRAE, TIA, and Uptime Institute guidelines.
- Demonstrated ability to troubleshoot complex operational issues and respond effectively during critical incidents in high-availability environments.
- Strong leadership, communication, and team collaboration skills with the ability to support and mentor technical staff.
- Experience using facility management software, CMMS platforms, and building automation or monitoring systems.
- Valid certification in a relevant discipline such as CDCP, DCPRO, or equivalent technical certification.
- Ability to support after-hours and 24x7 operational response requirements as needed.
- Valid driver’s license and ability to travel locally if required.

Preferred qualifications:

- Professional Engineer (PE) license or additional industry certifications related to mission-critical operations.
- Experience supporting sustainability initiatives, energy efficiency programs, or green data center operations.
- Knowledge of project management methodologies and experience supporting infrastructure improvement projects.
- Experience working across multiple data center sites or regional operations environments.
- Familiarity with preventative and predictive maintenance strategies for mission-critical infrastructure.
- Strong analytical skills with experience supporting root cause analysis and operational reporting.
- Experience working within client-facing environments with a focus on service delivery and operational excellence.
- Ability to thrive in fast-paced, high-pressure operational settings while maintaining strong attention to detail.
- Commitment to collaboration, inclusivity, and continuous learning in support of high-performing engineering teams.

#OEjobs

This position does not provide visa sponsorship. Candidates must be authorized to work in the United States without sponsorship.

Location:

On-site –Tempe, AZ

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!

Personalized benefits that support personal well-being and growth:

JLL recognizes the impact that the workplace can have on your wellness, so we offer a supportive culture and comprehensive benefits package that prioritizes mental, physical and emotional health. Some of these benefits include:

- 401(k) plan with matching company contributions
- Comprehensive Medical, Dental & Vision Care
- Paid parental leave at 100% of salary
- Paid Time Off and Company Holidays
- Early access to earned wages through Daily Pay

At JLL, we harness the power of artificial intelligence (AI) to efficiently accelerate meaningful connections between candidates and opportunities. Using AI capabilities, we analyze your application for relevant skills, experiences, and qualifications to generate valuable insights about how your unique profile aligns with the specific requirements of the role you're pursuing.

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For candidates in the United States, please see a fully copy of our Equal Employment Opportunity policy here .

Jones Lang LaSalle (“JLL”) is an Equal Opportunity Employer and is committed to working with and providing reasonable accommodations to individuals with disabilities.  If you need a reasonable accommodation because of a disability for any part of the employment process – including the online application and/or overall selection process – you may email us at [email protected] . This email is only to request an accommodation. Please direct any other general recruiting inquiries to our Contact Us page > I want to work for JLL.

Pursuant to the Arizona Civil Rights Act, criminal convictions are not an absolute bar to employment.

Pursuant to Illinois Law, applicants are not obligated to disclose sealed or expunged records of conviction or arrest.

Pursuant to Columbia, SC ordinance, this position is subject to a background check for any convictions directly related to its duties and responsibilities. Only job-related convictions will be considered and will not automatically disqualify the candidate.

Accepting applications on an ongoing basis until candidate identified.