Mechanical Field Engineer — Data Center Operations

Fluidstack•Abernathy, TX

18h•Onsite

About The Position

We are seeking a hands-on Mechanical Field Engineer to support the commissioning, operation, and maintenance of critical mechanical and cooling infrastructure across our hyperscale AI data center campuses. AI workloads generate extreme heat densities that demand precision mechanical systems — this role is responsible for making sure those systems never let the compute down. In addition to day-to-day operational responsibilities, this role carries engineering accountability for new construction support, capacity upgrades, site audits, and design review — providing the technical depth needed to both operate and improve the infrastructure you own. The ideal candidate has come up through mechanical and cooling systems in mission-critical environments, is equally comfortable troubleshooting a chiller fault and reviewing a P&ID in a design meeting, and takes personal ownership of the thermal health of every data hall they support.

Requirements

Bachelor's degree in Mechanical Engineering or a related field
Knowledge of critical data center mechanical and electrical equipment
Experience with the design, construction, operation, or maintenance of mission-critical facilities, especially data centers
Demonstrated experience reading, interpreting, and creating construction drawings, P&IDs, specifications, and submittal documents
Familiarity with BMS/BAS platforms for cooling system monitoring and control
Experience with refrigerant handling and EPA 608 certification
Proven ability to develop and execute MOPs and EOPs in a live critical environment
Strong familiarity with ASHRAE thermal guidelines and data center cooling standards

Nice To Haves

Knowledge of HVAC systems in mission-critical or data center environments
Knowledge of power systems, fluid dynamics, or thermodynamics as applied to data center cooling infrastructure
Experience carrying design concepts through exploration, development, and into deployment
Knowledge of mechanical, electrical, and controls systems for critical infrastructure
Experience in a hyperscale or colocation data center environment with direct-to-chip or immersion liquid cooling systems
PE licensure or equivalent mechanical engineering credential
Uptime Institute AOS or equivalent data center operations certification
Experience with commissioning programs at Tier III or Tier IV facilities
Familiarity with CMMS platforms for work order management and documentation

Responsibilities

Own day-to-day operation, maintenance, and troubleshooting of critical cooling and mechanical systems including chillers, cooling towers, CRACs/CRAHs, CDUs (liquid cooling / direct-to-chip), dry coolers, economizers, pumping systems, and associated piping infrastructure; enforce site safety requirements including LOTO, confined space, and refrigerant handling procedures across all mechanical work.
Develop, review, and execute MOPs, EOPs, and AOPs for planned and emergency mechanical maintenance events; manage and coordinate third-party mechanical contractors and vendors performing work on site.
Monitor BMS platforms for cooling system performance, alarm response, and capacity tracking; maintain accurate as-built documentation, P&IDs, and equipment records following any system modifications; support change management processes including risk assessments and post-work documentation.
Perform design and submittal reviews for new data centers and own engineering solutions for existing facility upgrades that add capacity, improve availability, and increase efficiency.
Troubleshoot mechanical faults and equipment failures; conduct formal Root Cause Analysis (RCA), lead engineering site audits within owned or colocation data centers, and produce risk reports with recommended mitigations and remediation plans.
Act as resident engineer during new construction and commissioning; interface with internal design, server hardware, and EHS teams while providing procedure reviews, ad-hoc training, and critical event support across multiple concurrent projects and regions.