BAS Field Engineer | Building Automation Systems (BAS)

Commissioning | HVAC Controls | DDC Systems | Building Automation

A growing building automation and HVAC controls organization is seeking an experienced BAS Field Engineer to support the startup, commissioning, troubleshooting, and optimization of commercial Building Automation Systems.

This is an excellent opportunity for a hands-on BAS professional who enjoys solving complex technical challenges, bringing HVAC automation systems online, and ensuring building control systems operate efficiently and reliably. The ideal candidate will have strong experience with BAS commissioning, DDC troubleshooting, HVAC controls, and system integration.

This role will work closely with internal teams, contractors, and customers to successfully deliver high-performance building automation solutions from installation through final system validation.

Responsibilities

• Perform startup, commissioning, and functional testing of commercial Building Automation Systems
• Verify proper operation of HVAC equipment and sequences of operation
• Troubleshoot DDC controllers, BAS networks, field devices, and communication issues
• Diagnose and resolve HVAC controls, integration, and system performance challenges
• Make programming adjustments and modifications to BAS databases, graphics, schedules, alarms, and trends
• Support integration of third-party HVAC equipment and systems using protocols such as BACnet and Modbus
• Optimize system performance to improve energy efficiency, occupant comfort, and equipment reliability
• Review control drawings, wiring diagrams, and sequences of operation
• Provide technical support during project execution and system startup
• Assist with customer training, documentation, and final system acceptance

Qualifications

• Three or more years of experience working with Building Automation Systems (BAS)
• Strong commercial BAS startup and commissioning experience
• Solid understanding of HVAC mechanical systems and DDC controls
• Advanced troubleshooting skills involving controllers, networks, and system integration
• Experience with BAS platforms such as Niagara, Johnson Controls, Siemens, Schneider Electric, Honeywell, Automated Logic, Distech, or similar systems
• Knowledge of BACnet, Modbus, and other building automation communication protocols
• Ability to interpret HVAC control drawings, electrical schematics, and sequences of operation
• Strong communication skills with the ability to interact with customers, contractors, and internal teams
• Ability to work independently while managing field assignments effectively

Company Offers:

• Work with industry-leading Building Automation technologies
• Diverse portfolio of commercial, healthcare, education, industrial, and mission-critical projects
• Collaborative engineering environment
• Stable organization with long-term career growth opportunities
• Competitive compensation based on experience
• Comprehensive Medical, Dental & Vision Insurance
• 401(k)
• Paid Time Off and Paid Holidays
• Professional training, technical development, and advancement opportunities

If you're passionate about HVAC controls, automation, and developing high-performing Building Automation Systems, we'd welcome the opportunity to discuss this confidential career opportunity with you.

Please send a current copy of your resume to for consideration and further discussion.

Alex Showers

Liberty Personnel Services

#BuildingAutomation

#Midsenior

#BuildingAutomation #HVAC #ControlsEngineer #BAS #MEP #EngineeringJobs #BAS Technician #HVAC Controls Technician #Building Automation #DDC Controls #Niagara N4 #BACnet #Commissioning, #ATC Controls #Energy Management Systems

Libertyjobs.com has become an essential destination site for experienced job seekers. Our recruiters are continually posting active job openings to the website. Feel free to search our database of open positions and apply for your next career move!

Hundreds of new jobs are listed on the site every month in a wide range of industries and locations. Last year we had over 900,000 unique job seekers visit our website, which means over 75,000 skilled job seekers search our openings every month.

Established in 2003, Liberty Personnel quickly grew into one of the largest technical recruiting agencies