Senior Lead Field Service Engineer

Position Summary

LiquidStack is a rapidly scaling technology company delivering advanced liquid cooling solutions for Artificial Intelligence (AI) workloads in data centers and at the edge. We are seeking a Senior Lead Field Service Engineer to serve as the primary on-site technical authority for LiquidStack systems deployed in live customer facilities, while also supporting the development of future field leadership capabilities.

This role is customer-facing, safety-focused, and highly technical. The Senior Lead Field Service Engineer owns resolution of complex, high-impact service events and serves as the final escalation point for issues beyond standard field support. In addition to hands-on technical leadership, this role contributes to field team development, operational maturity, and readiness for future people management responsibilities.

This position is intended as a senior technical leadership role with a clear progression path into a Regional Field Service Manager role in the future.

Essential Duties and Responsibilities

• Serve as the primary technical escalation point and final on-site authority for complex or unresolved field service issues
• Own resolution of customer-impacting, uptime-critical, and severity-based service incidents
• Lead advanced troubleshooting of mechanical, electrical, controls, and thermal system issues in live data center environments
• Support installation supervision, startup, commissioning support, preventimve maintenance, on-site service and repair of LiquidStack liquid cooling systems
• Lead commissioning support activities including pre-startup checks, system validation, and performance verification
• Apply sound field engineering judgment to make real-time technical decisions balancing safety, quality, uptime, and customer impact
• Provide technical guidance, coaching, and mentoring to Field Service Engineers and Technicians
• Support onboarding, training, and readiness of field team members
• Partner cross-functionally with Engineering, Quality, Manufacturing, and Operations on RCA, CAPA, and continuous improvement
• Exercise stop-work authority when unsafe or non-compliant conditions are identified

REQUIRED QUALIFICATIONS

• Significant hands-on field service experience supporting liquid cooling, HVAC, thermal, mechanical, electrical, and/or mission-critical systems
• Experience working in data centers, HPC environments, or uptime-sensitive facilities
• Proven experience serving as a technical escalation point or senior subject matter expert
• Strong troubleshooting, root cause analysis, and risk-based decision-making skills
• Customer-focused mindset with strong written and verbal communication skills
• Ability to manage a dynamic travel schedule while maintaining high standards of safety, quality, and customer engagement
• Interest in developing toward a future people management or field leadership role
• Ability to travel and work in industrial and data center environments
• Valid U.S. driver's license
• Authorization to work in the United States without current or Future visa sponsorship

TRAVEL REQUIREMENTS

Expected travel of approximately 40–60%, primarily within North America, but with some international travel as well. Ability to respond to urgent or unplanned service events, including nights, weekends, or holidays, as required.

WORK ENVIRONMENT

Ability to lift up to 50 lbs and work in industrial and data center environments, including exposure to mechanical, electrical, and thermal systems.

How You'll Work at LiquidStack

At LiquidStack, how we work is just as important as what we deliver. In this role, you will be expected to demonstrate our core behaviors while supporting mission-critical customer environments and leading technical field operations:

• Flexible – Adapt your approach to evolving field conditions, complex service events, and dynamic customer environments.

• Collaborative – Work cross-functionally with Engineering, Manufacturing, Quality, and Operations to resolve issues and drive better system outcomes.

• Driven – Take ownership of complex technical challenges and pursue resolution with urgency, accountability, and a commitment to excellence.

• Agile – Respond quickly to changing priorities, service escalations, and operational needs while maintaining safety and quality standards.

• Customer-Centric – Keep customer uptime, system reliability, and service experience at the center of every technical decision.

• Attentive – Listen carefully to customers, teammates, and field conditions to fully understand technical challenges and operational context before acting.