Armada - Senior Mechanical Design Engineer – Liquid Cooling Systems

• Mechanical and Liquid Cooling Architecture • Own the end-to-end mechanical cooling and fluid-distribution architecture for modular data center platforms. • Define primary, secondary, and rack-level cooling boundaries. • Establish pumping, flow-control, pressure-management, balancing, and redundancy strategies. • Align heat-rejection equipment, distribution piping, CDUs, rack manifolds, rear-door heat exchangers, and other cooling interfaces. • Develop scalable architectures that support multiple product configurations and deployment sizes. • Hydraulic System Design • Perform and review pipe-sizing, flow, pressure-drop, pump-head, and system-volume calculations. • Develop hydraulic models for water and glycol-based systems. • Account for fluid concentration, viscosity, temperature, fittings, valves, strainers, heat exchangers, and equipment pressure losses. • Define control-valve, balancing-valve, bypass, minimum-flow, and differential-pressure strategies. • Validate system performance across normal, part-load, maintenance, startup, and failure conditions. • Mechanical Design and Documentation • Own P&IDs, mechanical schematics, equipment schedules, valve schedules, instrumentation schedules, and design calculations. • Develop mechanical design criteria, basis-of-design requirements, and standard details. • Define clear equipment and scope boundaries between plant systems, modules, CDUs, rack cooling, and field interconnections. • Maintain disciplined revision control and technical traceability across the mechanical design package. • Review vendor drawings, submittals, calculations, and equipment selections for compliance with system intent. • Modular Product Integration • Define mechanical interfaces between factory-built modules and field-installed infrastructure. • Develop repeatable interconnect strategies for supply and return piping, manifolds, flexible connections, isolation valves, quick disconnects, drains, vents, and leak detection. • Establish labeling, connection, access, and installation standards that reduce field variability. • Support product configurations designed for transport, rapid installation, and phased expansion. • Design for Manufacturing and Serviceability • Develop layouts that support repeatable fabrication, assembly, inspection, testing, and installation. • Standardize piping routes, fittings, valve assemblies, supports, connection points, and mechanical components where practical. • Coordinate equipment clearances, removal paths, service access, drain points, vent points, and filter or strainer access. • Partner with manufacturing teams to resolve buildability issues and improve future revisions. • Translate field and factory feedback into product improvements. • Controls and Instrumentation Integration • Define the mechanical measurement and control requirements for temperature, flow, differential pressure, pressure, leak detection, fluid level, pump status, and valve position. • Partner with controls engineers to develop system operating sequences and alarm strategies. • Support pump staging, variable-speed control, minimum-flow protection, equipment enablement, and failure-response logic. • Help ensure mechanical system data is available for commissioning, operations, and remote monitoring. • Commissioning-First Design • Design systems for safe and efficient filling, flushing, venting, draining, testing, balancing, and startup. • Define isolation, bypass, temporary connection, and load-bank testing requirements. • Develop or support factory acceptance, site acceptance, and integrated systems testing procedures. • Establish performance-verification criteria for flow, pressure, temperature, heat rejection, controls, alarms, and failure modes. • Work directly with commissioning and field teams during startup and troubleshooting. • Cross-Functional Engineering Leadership • Partner with thermal, electrical, controls, structural, manufacturing, commissioning, supply chain, and product teams. • Coordinate directly with OEMs, equipment manufacturers, fabricators, and engineering partners. • Identify interface risks, design gaps, and single points of failure early. • Make clear technical decisions while maintaining alignment across the broader product architecture. • Communicate complex system behavior in a practical way to both technical and nontechnical stakeholders.