BAS 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.

Building Automation Systems (BAS) Engineer - JLL

What this job involves: As a BAS Engineer at JLL, you'll be at the forefront of designing, implementing, and optimizing intelligent building systems that create smarter, more sustainable environments for our clients. This role combines technical expertise with strategic thinking as you program, commission, and maintain building automation systems across diverse commercial real estate portfolios. You'll work collaboratively with facilities teams, contractors, and clients to ensure seamless integration of HVAC, lighting, and energy management systems.  

What the day-to-day will look like:

• Serve as custodian of Siemens Desigo building automation system, conducting comprehensive preventive maintenance, monitoring performance, and quickly resolving issues to ensure maximum efficiency and reliability.
• Fine-tune control sequences and system parameters to optimize energy efficiency and occupant comfort by analyzing performance data and implementing improvements that exceed design specifications.
• Act as technical expert for complex troubleshooting, vendor coordination, warranty management, and development of system documentation and maintenance protocols.
• Conduct daily system checks using Siemens Desigo diagnostic tools and analyze trending data to proactively identify and prevent potential operational issues.
• Perform scheduled preventive maintenance tasks and coordinate with vendors for warranty-covered repairs while managing relationships with Siemens representatives.
• Develop and deliver training programs for facility operators to build team knowledge and capabilities around the new system.
• Create and maintain standard operating procedures, system documentation, and technical guides specific to the installation.
• Monitor performance metrics against established benchmarks and identify opportunities for system enhancements and operational improvements.
• Implement software updates while maintaining security protocols and ensuring system integrity throughout the upgrade process.
• Maintain comprehensive performance documentation and reporting to track system health, demonstrate ROI, and inform continuous improvement initiatives.

Required Qualifications:

• Minimum 5 years’ hands-on experience with BAS platform maintenance and optimization

• Proven track record maintaining complex building automation systems in post-installation phase

• Proficiency with Desigo diagnostic tools, BACnet communications, and network troubleshooting

• Strong understanding of HVAC systems, control theory, and building operations

• Excellent problem-solving abilities and communication skills for technical training

• Availability for 24/7 emergency response when needed

Preferred qualifications

• Bachelor’s degree in engineering, Computer Science, or related technical field, or equivalent combination of education and experience.

• Siemens Desigo certification and advanced platform training.

• Experience with large-scale BAS installations and warranty management processes.

• Knowledge of cybersecurity protocols and system security maintenance.

• Familiarity with energy management systems and sustainability reporting.

• Maintenance management or reliability engineering certification.

• Commercial real estate or corporate facilities management background.

Location : San Diego, CA

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

Estimated compensation for this position:

This range is an estimate and actual compensation may differ. Final compensation packages are determined by various considerations including but not limited to candidate qualifications, location, market conditions, and internal considerations.

Location:

Job Tags:

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 may 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.

JLL Privacy Notice

Jones Lang LaSalle (JLL), together with its subsidiaries and affiliates, is a leading global provider of real estate and investment management services. We take our responsibility to protect the personal information provided to us seriously. Generally the personal information we collect from you are for the purposes of processing in connection with JLL’s recruitment process. We endeavour to keep your personal information secure with appropriate level of security and keep for as long as we need it for legitimate business or legal reasons. We will then delete it safely and securely.

For more information about how JLL processes your personal data, please view our Candidate Privacy Statement .

For additional details please see our career site pages for each country.

For candidates in the United States, please see a full 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 Show email . 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.

California Residents only

If you are a California resident as defined in the California Consumer Privacy Act (CCPA) please view our  Supplemental Privacy Statement which describes your rights and disclosures about your personal information. If you are viewing this on a mobile device you may want to view the CCPA version on a larger device.

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.