Senior Mechanical Engineer

FPSG; West (TX); Remote; USD 100,000 - 130,000; Full time

Job summary

A rapidly scaling engineering firm is seeking a Senior/Lead/Principal Mechanical Engineer to lead cooling systems design for next-generation AI/HPC data centres. This role includes owning the Mechanical Basis of Design and ensuring integration with other systems. The ideal candidate has 5+ years of experience in mechanical systems for mission-critical facilities and expertise in cooling systems. This position offers a full-time commitment with remote work capabilities and travel opportunities.

Qualifications

• 5+ years in mechanical systems for data centres or mission-critical facilities.
• Expertise in air-and-liquid-cooled chillers and HVAC systems.
• Ability to manage EPCM engineering packages.

Responsibilities

• Own the Mechanical Basis of Design for AI/HPC campuses.
• Design air-cooled chillers and liquid-to-chip cooling systems.
• Conduct field validation for equipment and systems.

Skills

Mechanical design leadership

Cooling systems expertise

Hydraulic modeling

CFD (6Sigma, TileFlow)

Education

Bachelor’s in Engineering or related field

Job description

Bridging the gap between Tech & Data and Life Sciences - UK, USA & Europe

Overview

Ref: 114442

Senior / Lead / Principal Mechanical Engineer / remote with travel – 80/20 split

Incredible opportunity to join a rapidly scaling company as a senior/lead/principal Mechanical Engineer to own the cooling systems design for next-generation AI/HPC data centres. You will define the Mechanical Standard, lead high-efficiency air and liquid-cooled system design, and ensure integration with electrical, structural, and architectural systems.

Responsibilities

• Owning the Mechanical Basis of Design (BOD) for AI/HPC campuses
• Designing and specifying air‑cooled chillers, CDUs, liquid‑to‑chip cooling, and hydronic loops
• Performing CFD airflow modelling, hydraulic calculations, and equipment de‑rating for extreme heat conditions
• Reviewing EPCM mechanical submittals, P&IDs, control sequences, and CFD models
• Conducting field validation: equipment placement, piping/duct routing, clearance, and QC
• Qualifying long‑lead mechanical equipment (chillers, pumps, CDUs, buffer tanks)
• Leading Integrated Systems Testing (IST) and handoff to Operations with SOPs

Person Specification

• Bachelor’s in Engineering, Construction Management, or related technical field
• 5+ years in mechanical systems for data centres, industrial, or mission‑critical facilities
• Expertise in cooling systems, HVAC, hydronics, air‑and‑liquid‑cooled chillers, DX/refrigerant cycles
• Experience with CFD (6Sigma, TileFlow) and hydraulic modelling
• Understanding of BMS control strategies, equipment sequencing, and thermal performance validation
• Ability to review and manage EPCM engineering packages

Next Steps

Apply by contacting Ciaran Ahern, [e-mail]

FPSG is committed to equal opportunities regardless of gender, race, disability, sexual orientation, religion or belief and age.

Seniority level

Director

Employment type

Full‑time

Job function

Data Infrastructure and Analytics