Principal Mechanical System Architect ¦ Hyperscale Data Center Infrastructure

Principal Mechanical System Architect ¦ Hyperscale Data Center Infrastructure – USA ¦ $Excellent + Bonus + Long-Term Incentives + Full Benefits Package

Are you the technical authority others turn to when defining cooling architecture for high-density data center environments? Do you have the depth to establish mechanical systems and engineering standards rather than simply deliver against an existing design? Are you looking for a Principal-level role where your decisions will directly shape how next-generation AI infrastructure is designed, built and operated? If so, read on...

The Company

A scaling data center infrastructure platform developing large-scale capacity to meet the rapidly increasing demands of AI and high-performance computing.

The business is building its Design & Engineering capability around senior technical specialists who can establish the infrastructure architecture, standards and repeatable solutions required as the portfolio scales.

The Role

As Principal Mechanical System Architect , you will:

• Own mechanical system architecture across next-generation data center developments from concept through commissioning and operations
• Define cooling topology, system configuration, redundancy philosophy and mechanical design criteria for high-density compute environments
• Establish mechanical standards, reference designs and engineering requirements that can be deployed consistently across the portfolio
• Lead technical strategy across central plant, chilled-water, heat rejection and liquid-cooling systems
• Evaluate emerging cooling technologies and determine how they can be integrated into scalable, reliable infrastructure solutions
• Act as the senior mechanical technical authority across internal teams, consultants, OEMs and engineering partners
• Direct critical design reviews and resolve complex system, integration and performance issues throughout project delivery
• Partner with Electrical, Controls, Construction, Commissioning and Operations to ensure mechanical systems operate as part of an integrated infrastructure architecture
• Translate lessons from construction, commissioning and live operations into continuous improvement of future designs

The Person

The successful candidate will likely bring:

• 10+ years’ mechanical engineering experience within hyperscale data centers, mission-critical infrastructure or similarly complex environments
• Deep expertise in data center cooling systems, thermal management, central plant and high-density mechanical infrastructure
• Strong understanding of liquid cooling and the evolving thermal requirements associated with AI and high-performance computing
• Experience defining system architecture, engineering standards or reference designs beyond individual project delivery
• Proven technical ownership across design, construction, commissioning and operational phases
• Strong understanding of resilience, redundancy, controls, efficiency and mechanical system integration
• The technical credibility to challenge consultants, OEMs and engineering partners and make significant system-level decisions
• Experience operating as a Principal Engineer, technical lead, SME or equivalent technical authority

Salary & Benefits

• Market-leading base salary
• Performance-related bonus
• Long-term incentive opportunity
• Comprehensive benefits package
• Principal-level technical ownership within a scaling data center platform
• Opportunity to define the critical power architecture behind next-generation AI infrastructure

Due to the continued growth of the platform, this role offers significant scope to shape the mechanical architecture and engineering standards that underpin future developments.

If you are looking for a senior technical role where you can define rather than inherit the mechanical architecture behind next-generation data centers, make your application without delay.