# Senior Field Service Technician - Company: [Liquidstack]() - Location: Atlanta, GA - Team: LQS Services - Posted: May 18, 2026 ## Job description At LiquidStack, we’re redefining what’s possible in the data center world. As a global leader in advanced liquid cooling solutions, we’re powering the future of AI, edge computing, and high-performance systems. Our team is growing, and we’re looking for skilled professionals who want to be part of something innovative and impactful. **\*\*Ideal candidates will be located near major customer hubs, with a preference for candidates based in Atlanta, GA (supporting Southeast/East Coast coverage)** **POSITION SUMMARY** LiquidStack is a fast-growing technology company delivering advanced liquid cooling solutions for mission‑critical data center and high‑performance computing environments. We are seeking a **Senior Field Service Technician** to serve as a technical owner in the field—leading complex installations, startups, and commissioning activities while acting as a trusted technical partner to customers. This highly visible, hands-on role goes beyond break/fix service. The Senior FST independently executes complex field work, mentors junior technicians, and serves as on-site technical authority during installations, commissioning, outages, and critical events. The successful candidate arrives fully credentialed and ready on day one; LiquidStack provides product-specific orientation but no foundational trade, certification, or technical-skills training outside of required safety programs. **\*\*\*All applicants must be legally authorized to work in the United States. LiquidStack does not provide employment-based immigration sponsorship for any position, now or in the future\*\*\*** **ESSENTIAL DUTIES AND RESPONSIBILITIES** **Field Execution & Technical Ownership** * Lead on-site installation, startup, commissioning, validation, preventive maintenance, and corrective service of LiquidStack liquid cooling systems; serve as the primary technical escalation point in the field prior to Engineering involvement * Support emergency response, outages, and time-sensitive customer events when required * Perform advanced troubleshooting across mechanical, hydronic, electrical, controls, and thermal subsystems; isolate root cause across hardware, software, power, fluid quality, or environmental factors * Operate diagnostic instrumentation (multimeters, megohmmeters, manometers, IR cameras, refrigerant recovery, flow meters, pressure transducers); lead pressure testing, flow balancing, fluid fills, leak checks, and acceptance testing during commissioning * Read and work from electrical schematics, P&IDs, mechanical drawings, and sequence-of-operations documents; redline drawings when as-built conditions differ from design * Coordinate work within mission-critical 24x7 data center environments including UPS, PDU, generators, ATS, BMS/DCIM, CRAC/CRAH, fire suppression, and chilled-water plant; adhere to badge access, escort, change-control, and chain-of-custody policies at every customer site **Customer & Site Leadership** * Act as LiquidStack’s senior technical representative at customer sites; communicate clearly and calmly with customer IT, facilities, engineering, and management stakeholders at the appropriate level of detail, especially during critical infrastructure events * Support customer acceptance testing and formal system handover * Deliver basic operational training and system overviews to customer technical teams; field technical questions and represent product capability accurately **Documentation, Quality & Continuous Improvement** * Complete detailed service reports, commissioning documentation, and root-cause analyses * Partner with Engineering, Manufacturing, Quality and Supply Chain to resolve recurring field issues; contribute to service procedures, checklist, and training materials * Use service ticketing systems (e.g., ServiceNow, Salesforce Field Service, or equivalent) to track work, log time against tasks, document resolutions, and ensure timely closure; maintain SLA compliance and clean shift handoffs to ensure continuity of operations **Mentorship & Scaling Support** * Train junior FST's and customer -side data center technicians on LiquidStack equipment, troubleshooting, and best practices; lead pre-job briefing, JSAs, and post-job debriefs; serve as on-site escalation point during complex troubleshooting; communicate status,  blockers, and lessons learned across the service team **SPECIFIC KNOWLEDGE, SKILLS, AND ABILITIES** * 5+ years of field service experience supporting HVAC, HVAC R, chillers, industrial cooling, power, or mission critical infrastructure * Proven experience leading equipment startups, commissioning, and troubleshooting in customer environment * High school diploma or GED require * Valid driver’s license and passport * Willingness to travel approximately 75% (primarily domestic with occasional international travel) * EPA 608 Universal Certification (Types I, II, and III) required at offer to legally service the full pressure range, including low-pressure chillers, without supervision * OSHA 10 (General Industry) required; OSHA 30 and NFPA 70E (arc flash) strongly preferred and may be required by customer sites before performing energized electrical work * Lockout/tagout (LOTO) competency required for safe servicing of energized mechanical and electrical systems in live data centers * Ability to read and work from electrical schematics, P&IDs, mechanical drawings, and sequence-of-operations documents without supervision * Working knowledge of hydronic loops, pumps, heat exchangers, CDUs (coolant distribution units), manifolds, and pressure/flow control * Familiarity with data center infrastructure: UPS, PDU, generators, ATS, BMS/DCIM, CRAC/CRAH, fire suppression, and raised floor or slab environments * Strong verbal and written communication; able to brief customers, peer technicians, engineers, and managers at the appropriate technical depth, remain calm during critical events, conduct customer handovers, and deliver operational training * Willingness to participate in 24x7 on-call rotation and respond to critical infrastructure emergencies **\*\*Ideal candidates will be located near major customer hubs, with a preference for candidates based in Atlanta, GA (supporting Southeast/East Coast coverage)** **Preferred** * Experience supporting data centers, hyperscale facilities, or other high‑availability environments * Hands-on experience with high-density liquid cooling (direct-to-chip, immersion, rear-door heat exchangers, manifold-based distribution) * Prior experience with hyperscale, colocation, or enterprise data center operators (e.g., Equinix, Digital Realty, Flexential, CoreSite, Compass, QTS); NOC/SOC/IOC or DCT II/III experience a plus **Work Environment & Physical Requirements** * Work performed at customer data centers, mechanical rooms,  and industrial environments; extended hours, nights, or weekends during commissioning or critical events * Ability to push or carry up to 75lbs. with assistance; routine bending, squatting, kneeling, and overhead reaching ; climbing ladders and elevated platforms; reliable transportation; on-call rotation; adherence to customer site safety, and PPE protocols at all times **Why Join Us?** * Competitive pay with opportunities for overtime * Consistent day-shift schedule * Paid time off, holidays, and great benefits * Be part of an industry-disrupting company with room to grow * Work on innovative technologies in a collaborative, supportive environment ## Apply [Apply on Liquidstack]() Canonical job page: