Sustaining Engineer

XNRGY Climate Systems•Mesa, AZ

6d•Onsite

About The Position

XNRGY Climate Systems is seeking a Sustaining Engineer based in Mesa, AZ to ensure the reliability, serviceability, and continuous improvement of large-scale HVAC and refrigeration systems used in data centers. This role sits at the intersection of field service, engineering, and quality, acting as the technical bridge between what happens in the field and how the product is designed, assembled, and improved.

Requirements

Bachelor’s degree in Mechanical Engineering, Electrical Engineering, or related field
5+ years in field service, product support, or reliability engineering for mechanical/electrical systems, preferably with mission-critical products such as CRAH units, chillers, or HVAC systems
Strong troubleshooting skills (electrical, mechanical, controls)
Experience working directly with field technicians, commissioning teams, or service operations
Strong communication skills across technical and non-technical stakeholders
Comfortable working in low-structure, high-ambiguity environments
Willingness to travel up to 20%

Responsibilities

Lead technical troubleshooting and provide advanced support across service operations and field activities
Drive root cause investigations for recurring issues and implement corrective and preventive actions
Manage commissioning and validation of systems in real-world operating conditions
Translate field failures into engineering actions, corrective fixes, and product improvements
Modify product drawings (CAD) to reflect field insights and service improvements
Develop and improve SOPs, troubleshooting guides, and service documentation
Support field technicians and service teams with real-time technical guidance and problem resolution