Senior HVAC & BAS Technician for Critical Facilities

Natex; Boulder (CO); On-site; USD 73,000 - 91,000; Full time

Job summary

UCAR is seeking a Maintenance Mechanic II to install, maintain, troubleshoot, and operate commercial HVAC, refrigeration, plumbing, and boiler systems across UCAR facilities. The role requires independent diagnostic work, BAS-based monitoring, and guidance to other maintenance staff.

Applicants should have a high school diploma and a recognized HVAC/mechanical program or apprenticeship, plus at least six years of relevant experience. EPA 608 certification is preferred.

Qualifications

• High school diploma or equivalent.
• HVAC/mechanical technical program, apprenticeship, or equivalent experience.
• Journey-level mechanical worker with min 6 years of progressive experience in commercial/industrial maintenance.
• Experience with critical facility HVAC systems and infrastructure.
• Experience troubleshooting and repairing commercial HVAC and mechanical building systems.
• EPA Section 608 certification for refrigeration work; Universal preferred.

Responsibilities

• Install, maintain, troubleshoot, repair, and operate commercial HVAC, refrigeration, plumbing, pneumatic, hydraulic, boilers, hydronic, and related systems.
• Diagnose equipment and system failures using diagnostics, data, and measurements.
• Maintain and repair air handling units, rooftops, pumps, valves, heat exchangers, coils, compressors, and refrigeration equipment.
• Perform preventive and predictive maintenance according to schedules and manufacturer guidelines.
• Identify problems and recommend corrective actions to improve reliability.
• Monitor water treatment chemicals and BAS trends, adjust as needed.
• Operate BAS to monitor systems, alarms, and setpoints; support controls troubleshooting.
• Coordinate with other trades and contractors as needed.
• Perform refrigeration service per EPA requirements and UCAR procedures.

Skills

HVAC systems

BAS experience

Troubleshooting

Hydronic systems

Pumps & valves

Refrigeration

Boilers

Safety compliance

On-call readiness

Controls coordination

Education

High school diploma

HVAC/mechanical tech program or apprenticeship

Six years in mechanical maintenance

EPA 608 certification

Tools

Diagnostic instruments

Hand tools

Power tools

Ladders

CMMS familiarity

Job description

UCAR is seeking a Maintenance Mechanic II to install, maintain, troubleshoot, and operate commercial HVAC, refrigeration, plumbing, and boiler systems across UCAR facilities. The role requires independent diagnostic work, BAS-based monitoring, and guidance to other maintenance staff.

Applicants should have a high school diploma and a recognized HVAC/mechanical program or apprenticeship, plus at least six years of relevant experience. EPA 608 certification is preferred.