Senior HVAC Technician

Terrestris LLC; Birmingham (AL); On-site; USD 90,000 - 110,000; Full time

Benefits offered by this job

Health benefits

Retirement benefits

Paid leave

Tuition assistance

Work‑life programs

Job summary

Terrestris LLC is seeking a Senior HVAC Technician to support U.S. military and federal facilities with installation, maintenance, and commissioning of commercial and industrial HVAC systems.

You will diagnose a range of mechanical/electrical issues, lead junior technicians, and ensure compliance with DoD, safety, and environmental standards. Ideal candidates have 7+ years of HVAC experience, including DoD missions, EPA 608 certification, and BAS/DDC control expertise.

Qualifications

• 7+ years of commercial/industrial HVAC experience.
• 3+ years in military, federal, or mission-critical facilities.
• Strong knowledge of HVAC installation, troubleshooting, and controls.
• EPA 608 Universal Certification.
• Valid driver's license with a clean record.

Responsibilities

• Install, maintain, troubleshoot, repair, and commission HVAC systems.
• Lead junior technicians and coordinate with government personnel.
• Read blueprints and install/adjust BAS and DDC controls.
• Respond to emergency service calls and support DoD safety standards.
• Maintain equipment in data centers, medical spaces, and critical facilities.
• Document service reports and use CMMS for records.

Skills

HVAC troubleshooting

Electrical controls

BAS / DDC

Blueprints reading

Team leadership

DoD environment

EPA 608 Certification

Education

HVAC Technical School Diploma

Associate Degree in HVAC

NATE Certification

Tools

Maximo CMMS

TRIRIGA

Archibus

Job description

Are you looking for a Challenge? Looking for an innovative organization and the opportunity to learn and grow professionally? We can help! We are seeking a highly skilled Senior HVAC Technician with extensive experience supporting U.S. military installations, federal facilities, or large institutional campuses. The Senior HVAC Technician will be responsible for installing, maintaining, troubleshooting, repairing, and commissioning commercial and industrial HVAC systems that support mission‑critical operations. This position requires a strong technical background, leadership abilities, and experience working within Department of Defense (DoD) environments while complying with military regulations, safety standards, and facility maintenance requirements.

The ideal candidate will have experience supporting military barracks, administrative buildings, warehouses, medical facilities, training centers, dining facilities, maintenance shops, and other government‑owned facilities.

I’ve never heard of Terrestris. What do you do?

At Terrestris, we leverage technology to create better mission outcomes through better human performance. We form strong client and team relationships through transparency and strive to create an environment where our team can let their excellence shine through. By finding, developing, and incorporating new ideas, we provide memorable services. Rooted in the USMC values of honor, courage, and commitment, Terrestris seeks to deliver extraordinary value to the American people by helping the Government become more efficient and effective.

So, what will the Senior HVAC Technician at Terrestris do?

The Senior HVAC Technician will maintain, troubleshoot, repair, and commission commercial and industrial HVAC systems supporting U.S. military and federal facilities. Diagnose mechanical, electrical, refrigeration, and controls issues; perform preventive maintenance; support mission‑critical operations; and ensure all work meets DoD, federal, safety, and environmental standards. Provide technical leadership to junior technicians and coordinate with Government personnel and other trades to keep facilities safe, reliable, and operational.

What does a typical day look like for a Senior HVAC Technician?

You Will

• Perform installation, maintenance, troubleshooting, repair, and replacement of commercial and industrial HVAC systems on military and federal facilities.
• Diagnose electrical, refrigeration, mechanical, controls, airflow, and hydronic system issues using advanced diagnostic equipment.
• Install rooftop units (RTUs), split systems, heat pumps, air handlers, chillers, boilers, cooling towers, exhaust systems, make‑up air units, packaged units, and Variable Refrigerant Flow (VRF) systems.
• Install, braze, pressure test, evacuate, and charge refrigerant piping in accordance with manufacturer specifications and EPA regulations.
• Install, troubleshoot, calibrate, and program HVAC controls, thermostats, sensors, Building Automation Systems (BAS), and Direct Digital Controls (DDC).
• Perform preventive maintenance inspections and corrective maintenance on HVAC equipment to maximize system reliability and operational readiness.
• Conduct startup, commissioning, testing, balancing verification, and performance evaluations of new and existing HVAC systems.
• Interpret blueprints, wiring diagrams, mechanical drawings, specifications, and military facility construction documents.
• Respond to emergency service calls while maintaining mission‑critical facility operations.
• Maintain equipment supporting data centers, communications rooms, medical spaces, command facilities, and other critical infrastructure.
• Coordinate with Government Facility Managers, CORs, engineers, subcontractors, and other maintenance trades to schedule repairs and minimize operational disruptions.
• Train and mentor junior HVAC technicians and provide technical guidance on complex troubleshooting and repair activities.
• Maintain accurate service reports, maintenance records, work orders, inventory documentation, and equipment history using computerized maintenance management systems (CMMS).
• Ensure all work complies with UFC criteria, ASHRAE standards, NFPA requirements, OSHA regulations, EPA Section 608 requirements, and installation‑specific policies.
• Support facility inspections, warranty repairs, equipment lifecycle planning, and energy conservation initiatives.
• Participate in after‑hours emergency response and on‑call rotations as required.

What qualifications do you look for?

You might be the professional we’re looking for if you have:

• Minimum 7 years of commercial or industrial HVAC experience, including at least 3 years supporting military, federal, or other mission‑critical facilities.
• Experience maintaining HVAC systems in military installations, hospitals, laboratories, data centers, industrial plants, or institutional facilities.
• Strong knowledge of HVAC installation, troubleshooting, refrigeration systems, electrical controls, airflow, hydronic systems, and mechanical equipment.
• Experience with Building Automation Systems (BAS) and Direct Digital Controls (DDC).
• Ability to read and interpret blueprints, wiring diagrams, control schematics, mechanical drawings, and technical manuals.
• EPA Section 608 Universal Certification.
• Valid driver’s license with a clean driving record.
• Strong troubleshooting, analytical, and problem‑solving skills.
• Excellent written and verbal communication skills.
• Ability to work independently with minimal supervision.
• Ability to lift up to 75 pounds, climb ladders, work on rooftops, and perform work in confined spaces.
• Ability to pass a Government background investigation and obtain installation access.

We Will Be Extra Impressed If You Have

• Experience supporting U.S. Army, Air Force, Navy, Marine Corps, or other federal facilities.
• HVAC Technical School Diploma or Associate’s Degree in HVAC Technology.
• NATE Certification.
• OSHA 10 or OSHA 30 Certification.
• Experience with Trane, Carrier, York, Daikin, Lennox, AAON, Liebert, or similar commercial HVAC systems.
• Experience with CMMS platforms such as Maximo, TRIRIGA, FacilityDude, Archibus, or similar maintenance systems.
• Familiarity with UFC, UFGS, EM 385-1-1, and military facility maintenance standards.
• Experience supporting preventive maintenance programs under federal service contracts.

What kind of benefits does Terrestris Offer?

• We offer outstanding benefits including health, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, and work‑life programs.
• Our award programs acknowledge employees for exceptional performance and superior demonstration of our service standards.
• Full‑time and part‑time employees working at least 20 hours a week on a regular basis are eligible to participate in our benefit programs.
• Other offerings may be provided for employees not within this category.

Terrestris is an Equal Opportunity Employer (EOE). Qualified applicants are considered for employment without regard to age, race, color, religion, sex, national origin, sexual orientation, disability, or veteran status. Applicants must be authorized to work in the U.S.