HVAC / Refrigeration Mechanic (Union) - NSS

About Us

Nova Space Solutions, LLC (NSS) is a joint venture between Wolf Creek Federal Services, Inc. (a wholly-owned subsidiary of Chugach Government Solutions, LLC) and Amentum Technology, Inc. When you join NSS, you also become a part of a proud legacy of supporting missions while sustaining culture.

The federal division of Chugach Alaska Corporation, Chugach Government Solutions, through its subsidiaries and affiliates, has been supporting critical missions as a government contractor for over 25 years. We are proud to have built, and continue to foster, an incredibly talented team spanning across the globe in hundreds of different fields - each team member proud to serve our country with first-class business services, while also making a difference for our Chugach shareholders.

Empowering employees is a part of our core, and that focus is one of the ways we build and foster high-performing teams. We empower our employees through competitive compensation and benefits package, professional growth opportunities, truthful communication, and more!

If you are looking for an opportunity to serve something bigger than yourself; if you want your day job to be one that creates meaningful value; if you are looking for an environment that highly values employees and respects individual differences - then Nova Space Solutions may be the right fit for you!

Job Overview

Installs, maintains, troubleshoots, repairs, and operates HVAC/R (Heating, Ventilation, Air Conditioning, and Refrigeration) systems and related equipment, including compressors, pumps, condensers, piping, motors, controls, and air distribution systems. Performs operational testing, preventive maintenance, and corrective repairs to support safe and efficient system operations.

Responsibilities

Essential Job Duties:

• Lay out, install, maintain, and repair refrigeration machinery, auxiliary equipment, piping, and HVAC/R systems
• Adjust and regulate valves, controls, thermocouples, and thermostats to balance system operations
• Inspect refrigeration and HVAC/R systems, including mechanical, electrical, and pneumatic controls, to identify defects or malfunctions
• Overhaul and rebuild refrigeration equipment, including valves, springs, couplings, piping, and related components
• Load refrigeration mediums such as Freon and ammonia into refrigeration systems as required
• Perform sheet metal work associated with air conditioning duct systems
• Analyze equipment failures and determine appropriate corrective actions
• Replace mechanical and electrical components, including fuses, heat elements, control units, and thermostats
• Operate and monitor built-up air conditioning and refrigeration systems during startup, shutdown, and normal operations
• Perform alignment checks and operational testing to ensure proper equipment performance
• Use hand tools, testing devices, and precision measuring instruments to complete maintenance and repair activities
• Instruct and assist lower-graded employees as assigned
• Perform other duties as assigned

• Support safe, reliable, and efficient operation of HVAC/R systems and equipment
• Troubleshoot and resolve mechanical, electrical, pneumatic, and operational system issues
• Read and interpret maintenance blueprints, sketches, specifications, and technical documentation
• Maintain compliance with applicable safety procedures, operational standards, and certification requirements
• Support team operations through professional conduct, communication, and collaboration
• Identify opportunities to improve safety, operational performance, efficiency, and customer service
• Support operational schedules, peak workloads, and surge requirements as needed

• Up to 5 years of HVAC/R or refrigeration maintenance experience
• Ability to read and interpret maintenance blueprints, sketches, specifications, and technical documents
• Ability to use advanced shop mathematics, precision measuring instruments, testing devices, and hand tools
• Ability to troubleshoot and repair refrigeration and HVAC/R systems and components
• Ability to work independently and in a team environment
• Ability to work outside normal schedules and adjust work hours to support operational requirements
• Professional conduct and adherence to workplace safety standards
• Ability to obtain and maintain required certifications applicable to the position
• Valid driver's license when operation of company vehicles is required

• Working knowledge of refrigeration mechanics and HVAC/R system operations
• Experience using a variety of testing devices, diagnostic tools, and precision measuring equipment
• Experience performing sheet metal work and air distribution system repairs
• Experience supporting industrial, facility, or plant maintenance operations

• Work performed in industrial, facility, and mechanical environments with exposure to grease, oil, dirt, vibration, heat, cold, noise, and moving equipment
• May require indoor and outdoor work in varying environmental conditions

• Moderate physical effort required for sustained periods while handling light- and medium-weight parts and equipment
• Ability to stand, walk, bend, kneel, climb, and work in awkward positions for extended periods
• Ability to climb ladders and work around mechanical equipment and systems
• Ability to lift, carry, push, and pull equipment and materials as required