Senior Mechanical Design Engineer – Remote Modular Cooling

Armada; San Francisco (CA); Remote; USD 158,000 - 185,000; Full time

Benefits offered by this job

Equity

401(k) plan

Health insurance

Unlimited PTO

HSA/FSA

Job summary

Armada seeks a Senior Mechanical Systems / Design Engineer to lead liquid cooling and mechanical distribution for modular AI data center platforms. You will own end-to-end architecture connecting heat-rejection equipment, pumps, piping, manifolds, and rack cooling, translating requirements into manufacturable, repeatable designs that can be deployed across sites.

This role blends mechanical design, hydraulic engineering, and commissioning, with cross-functional collaboration across

Qualifications

• 7+ years of experience designing mechanical cooling, hydraulic distribution, process cooling, or mission-critical infrastructure systems.
• Experience with data centers, semiconductor facilities, industrial process cooling, central utility plants, or comparable high-reliability environments.
• Strong knowledge of pipe sizing, pump selection, pressure-drop analysis, flow balancing, system volume, and hydraulic control.
• Experience developing and owning P&IDs, mechanical calculations, equipment schedules, valve schedules, and instrumentation requirements.
• Ability to coordinate across engineering, manufacturing, controls, commissioning, and field teams.

Responsibilities

• Own end-to-end mechanical cooling and fluid-distribution architecture for modular data center platforms.
• Define cooling boundaries and redundancy strategies.
• Develop hydraulic models and perform pipe-sizing calculations.
• Define mechanical interfaces between factory-built modules and field-installed infrastructure.
• Lead design for manufacturing, serviceability, and field commissioning.
• Coordinate with cross-functional teams and suppliers to resolve interface risks.

Skills

Mechanical cooling design

Hydraulic distribution

Coordinate across teams

P&IDs ownership

System architecture

Education

Professional Engineer license

Tools

P&IDs

Pipe sizing calculations

Hydraulic modeling tools

Job description

Armada seeks a Senior Mechanical Systems / Design Engineer to lead liquid cooling and mechanical distribution for modular AI data center platforms. You will own end-to-end architecture connecting heat-rejection equipment, pumps, piping, manifolds, and rack cooling, translating requirements into manufacturable, repeatable designs that can be deployed across sites.

This role blends mechanical design, hydraulic engineering, and commissioning, with cross-functional collaboration across