Title: Facilities HVAC Technician IV – Senior Lead
Position Summary:
Firefly Aerospace is seeking an experienced Facilities HVAC Technician IV – Senior Lead to support our rocket production and test facility in Briggs, TX. This is a hands-on technical leadership opportunity for a senior HVAC professional who enjoys solving complex problems, improving equipment reliability, and mentoring fellow technicians in a high-performance aerospace environment.
You will lead advanced troubleshooting, maintenance, repair, and commissioning of commercial and industrial HVAC systems, including chillers, air handlers, refrigeration systems, and building automation controls. You will also help improve system reliability, prevent recurring failures, and maintain critical environmental conditions required for aerospace manufacturing and testing.
If you are a technically strong HVAC professional ready to take ownership of complex systems and make a meaningful impact, we encourage you to apply.
Required Skills
- 12+ years of progressive commercial or industrial HVAC experience, or equivalent technical education and relevant experience.
- Advanced troubleshooting, repair, installation, and maintenance of commercial and industrial HVAC systems, including equipment ranging from 5 to 100+ tons.
- Hands-on experience with RTUs, split systems, packaged units, air handlers, chillers, refrigeration circuits, and associated mechanical systems.
- Strong knowledge of HVAC electrical systems, refrigeration principles, airflow, control circuits, schematics, and diagnostic equipment.
- Experience troubleshooting Building Automation Systems (BAS), HVAC controls, sensors, actuators, and Variable Frequency Drives (VFDs).
- Ability to independently lead complex troubleshooting, identify root causes, implement corrective actions, and prevent recurring equipment failures.
- Experience providing technical guidance, training, or mentorship to other technicians.
- EPA Section 608 Universal Certification.
- Ability to read mechanical drawings, electrical schematics, and control diagrams.
- Strong communication, documentation, safety, and problem-solving skills.
- Willingness to work onsite in Briggs, TX, support occasional overtime and weekends, and participate in an after-hours on-call rotation.
Desired Skills
- Experience in aerospace, advanced manufacturing, semiconductor, pharmaceutical, laboratory, or other mission-critical facilities.
- Experience supporting cleanrooms and controlled environments requiring precise temperature, humidity, airflow, and pressure control.
- Knowledge of chilled-water systems, hydronic systems, glycol loops, and process cooling.
- Advanced BAS troubleshooting or programming experience with platforms such as Trane, Carrier, Daikin, Johnson Controls, Siemens, or Honeywell.
- Experience with HVAC commissioning, equipment startup, contractor oversight, and capital improvement projects.
- Knowledge of root cause analysis (RCA/RCCA), preventive and predictive maintenance, and equipment reliability improvement.
- Experience with CMMS, maintenance planning, critical spare parts, and equipment lifecycle management.
- Familiarity with compressed air, vacuum, process exhaust, humidification, and dehumidification systems.
- Additional plumbing, general mechanical systems, and material-handling equipment experience.
