Senior Mechanical Design Engineer – Liquid Cooling Systems

🔥 12 hours ago

🏄 California – Remote

🏄 California – Remote

💵 $137k - $171.3k / year

⏰ Full Time

🟠 Senior

🧑‍🔧 Mechanical Engineer

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👻 Ghost score 5%

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Armada

WebsiteLinkedInAll Job Openings

51 - 200 employees

🏭 Manufacturing

📦 Logistics

💼 Consulting

💰 $47.3M Series A on 2023-12

Manufacturing • Logistics • Consulting

Armada is a company focused on enhancing connectivity and data management in remote environments through advanced technology solutions. With products such as Connect, Edge, and OpsAI, Armada enables seamless connectivity, robust data infrastructure, and real-world AI applications to address critical challenges in industries like oil and gas, public sector, manufacturing, mining, logistics, and telecommunications. The company leverages partnerships and technology like SpaceX/Starlink to bring digital solutions to over 40 countries. Armada's mission is to bridge the digital divide by offering innovative connectivity and compute solutions tailored for the most challenging environments.

📋 Description

• 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 for multiple product configurations and deployment sizes • Perform and review pipe-sizing, flow, pressure-drop, pump-head, and system-volume calculations • Develop hydraulic models for water and glycol-based systems • Validate system performance across normal, part-load, maintenance, startup, and failure conditions • 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 equipment and scope boundaries across plant systems, modules, CDUs, rack cooling, and field interconnections • Maintain revision control and technical traceability across the mechanical design package • Review vendor drawings, submittals, calculations, and equipment selections • Define mechanical interfaces between factory-built modules and field-installed infrastructure • Develop repeatable piping interconnect strategies, including manifolds, flexible connections, isolation valves, quick disconnects, drains, vents, and leak detection • Establish labeling, connection, access, and installation standards • Support transport, rapid installation, and phased expansion designs • Develop layouts for repeatable fabrication, assembly, inspection, testing, and installation • Standardize piping routes, fittings, valve assemblies, supports, connection points, and mechanical components • 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 revisions • Translate field and factory feedback into product improvements • Define measurement and control requirements for temperature, flow, pressure, differential pressure, leak detection, fluid level, pump status, and valve position • Partner with controls engineers on operating sequences and alarm strategies • Support pump staging, variable-speed control, minimum-flow protection, equipment enablement, and failure-response logic • Ensure mechanical system data supports commissioning, operations, and remote monitoring • Design for 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 with commissioning and field teams during startup and troubleshooting • Partner with thermal, electrical, controls, structural, manufacturing, commissioning, supply chain, and product teams • Coordinate with OEMs, equipment manufacturers, fabricators, and engineering partners • Identify interface risks, design gaps, and single points of failure • Make technical decisions and maintain alignment across the product architecture

🎯 Requirements

• 7 or more 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 • Practical knowledge of chilled-water, condenser-water, glycol, or process-fluid systems • Experience designing for commissioning, maintenance, isolation, flushing, venting, draining, and service access • Ability to coordinate across engineering, manufacturing, controls, commissioning, and field teams • Strong technical judgment and the ability to own work with limited oversight • Experience with direct liquid cooling for AI or HPC systems • Experience with CDUs, rack manifolds, cold plates, rear-door heat exchangers, liquid-to-liquid heat exchangers, or liquid-to-air systems • Background in modular, prefabricated, skid-based, or containerized infrastructure • Experience with AFT Fathom, Pipe-Flo, or comparable hydraulic modeling tools • Familiarity with CFD, thermal modeling, or transient analysis • Proficiency with AutoCAD, Revit, Plant 3D, SolidWorks, Inventor, or similar design tools • Experience supporting FAT, SAT, IST, or field commissioning • Professional Engineer license or equivalent technical depth

🏖️ Benefits

• Competitive base salary and equity • Medical, dental, and vision (subsidized cost) • Health savings accounts (HSA), flexible spending accounts (FSA), and dependent care FSAs (DCFSA) • Retirement plan options, including 401(k) and Roth 401(k) • Unlimited paid time off (PTO) • 14 paid company holidays per year • Subsidized benefits