Senior Field Service Technician

Position Overview

The Senior Field Service Technician (S3) is the senior field technical lead responsible for execution across all service phases, including rework, start-up, commissioning, and post-install service. This role requires advanced expertise in HVAC systems, including CRAH and chiller equipment, with full ownership of complex L4–L5 commissioning. You will act as the on-site technical authority, ensuring system performance, quality, and successful customer delivery.

Travel and Location

• Schedule: 2 weeks in the field / 1 week home (flexible based on projects)
• Open to candidates based in: Texas, Wisconsin, Arizona
• Primary project locations: Abilene, TX; Amarillo, TX; Wisconsin (project-based); Mesa, AZ
• Travel requirement: 50–80%

Why Join

• Earn $100K+ with consistent overtime and travel
• Work on advanced cooling systems supporting AI and data centers
• Travel to large-scale, high-impact project sites
• Join a rapidly growing company in a high-demand industry
• Exposure to advanced HVAC and liquid cooling technologies

Key Responsibilities

• Lead start-up and commissioning activities (L2–L5), with ownership of complex L4–L5 commissioning execution
• Scope, plan, and execute complex rework and completion activities to ensure systems are deployment-ready
• Troubleshoot and resolve advanced HVAC, electrical, and controls system issues in mission-critical environments
• Lead on-site field execution, supervising S1/S2 technicians and coordinating with external contractors
• Oversee customer handover, ensuring systems meet performance, quality, and operational expectations
• Handle complex field escalations, including detailed root cause analysis (RCA) and system resolution
• Support service parts identification and provide technical guidance to customers
• Serve as the primary on-site technical authority, coordinating with customers, general contractors, and internal teams
• Provide structured feedback to Engineering and Manufacturing to improve product performance and field execution
• Ensure safety compliance and execution readiness across all field activities

Requirements

• 6–10+ years of HVAC field service or industrial/mechanical experience
• Strong experience with CRAH and/or chiller systems
• Proven expertise in L4–L5 commissioning and advanced troubleshooting
• Experience leading field work, supervising technicians, and coordinating contractors
• Strong troubleshooting skills across electrical, mechanical, and controls systems
• EPA 608 Universal Certification Required
• OSHA 30 certification preferred
• Willingness to travel frequently (50–80%)
• Ability to work extended hours and overtime as needed
• Strong communication and customer-facing skills