Field Service Technician

Our client is looking for Field Technicians to support Building Management Systems (BMS) and HVAC controls work across service calls and active projects. This is a hands-on field role focused on programming, commissioning, troubleshooting, and supporting building automation systems while working closely with project managers and clients. The position involves working with DDC controllers, low-voltage systems, control graphics, wiring diagrams, and mechanical plans, with exposure to platforms such as Niagara, Distech, JCI, ABB, Honeywell, and similar systems. This role is ideal for technicians with a minimum of two years of full-time HVAC controls experience who are comfortable working in the field and interacting with clients. Candidates should have experience with DDC or PLC-based programming, system diagnostics, and commissioning, not just wiring. The team places a strong emphasis on culture, coachability, and problem-solving ability, and they are open to training the right individual who is sharp, professional, and willing to learn. Technicians with 2-5 years of experience will be considered for a standard technician role, while those with 5+ years may step into a senior or project technician position. This is a true field-based role with minimal desk work, strong growth potential, and an expedited one-step interview process. Equal Opportunity Employer / Disabled / Protected Veterans The Know Your Rights poster is available here: The pay transparency policy is available here: For temporary assignments lasting 13 weeks or longer, AllSTEM Connections is pleased to offer major medical, dental, vision, 401k and any statutory sick pay where required. We are committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation for any part of the employment process, please contact your staffing representative who will reach out to our HR team. AllSTEM Connections participates in the E-Verify program in certain locations as required by law. Learn more about the E-Verify program. We also consider for employment qualified applicants regardless of criminal histories, consistent with legal requirements, including, if applicable, the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance. Pursuant to applicable state and municipal Fair Chance Laws and Ordinances, we will consider for employment-qualified applicants with arrest and conviction records, including, if applicable, the San Francisco Fair Chance Ordinance. For Los Angeles, CA applicants: Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Additional Skills (none specified) AllSTEM Representative Contact Info Account Executive: JACKSON Branch Phone: (909) 244-1777 Location: Ontario, CA

Created: 2026-03-04