Mechanical Engineer – Hydronics

Armada

Mechanical Engineer - Hydronics managing hydronic distribution architecture for a modular liquid-cooled data center platform. Collaborating with internal engineering teams for robust, scalable solutions.

Posted 4/24/2026full-timeRemote • 🇺🇸 United StatesSeniorLead💰 $157,600 - $197,000 per yearWebsite

Tech Stack

Tools & technologies

Assembly

About the role

Key responsibilities & impact

Own the hydronic distribution architecture across primary water/PG25 loop
Define and standardize system design rules for flow, pressure drop, balancing, and measurement
Establish practical design approaches for PG25 and water-based systems, including pipe sizing, fluid behavior, and maintainability considerations
Support system-level alignment between plant, distribution, and rack cooling interfaces
Own distribution P&IDs, valve schedules, and instrumentation schedules
Maintain revision discipline, tagging standards, and interface clarity across the mechanical distribution package
Define boundaries and interfaces between plant equipment, CDUs, rack cooling components, and module-to-module interconnects
Develop and maintain interface control documentation for hydronic system boundaries
Design for startup, commissioning, and long-term operation
Define fill, flush, vent, drain, isolation, bypass, and strainer strategies
Establish measurement points for flow, differential pressure, and temperature
Partner with commissioning and controls teams to define what must be measured, how it will be measured, and what acceptable startup performance looks like
Own pipe sizing methodology and pressure drop strategy for both PG25 and water loops
Define practical approaches to balancing and instrumentation placement
Ensure real-world field performance aligns with design intent
Help establish repeatable standards for distribution performance across product variants
Own mechanical distribution layout packages and service clearance requirements
Ensure systems are designed for safe access, maintenance, replacement, and long-term serviceability
Support design for manufacturing by standardizing routing approaches, fittings strategy, tolerances, and assembly expectations
Help define clear factory-built versus field-installed scope boundaries
Define standard module interconnect approaches, including manifolds, quick connects, labeling, boundary isolation, and leak detection interfaces as applicable
Ensure interconnect designs support rapid deployment while preserving reliability and maintainability
Drive consistency across builds to reduce site variability and improve product repeatability
Partner with mechanical plant, thermal, electrical, controls, manufacturing, and commissioning teams
Coordinate system interfaces without losing baseline discipline
Work with OEMs and fabricators while maintaining ownership of the internal distribution architecture and standards
Support factory builds, field feedback collection, and lessons-learned incorporation into future revisions

Requirements

What you’ll need

7+ years of experience in hydronic distribution design for data centers, industrial systems, mission-critical HVAC, or comparable thermal infrastructure
Strong experience owning P&IDs, valve strategies, and instrumentation design
Practical field knowledge of commissioning, startup, and serviceability constraints
Experience with glycol-based cooling systems such as PG25 or equivalent
Strong understanding of pipe sizing, flow management, pressure drop, balancing, and measurement strategies
Proven ability to maintain documentation discipline, revision control, and interface clarity
Strong cross-functional collaboration skills across mechanical, controls, manufacturing, and field teams

Benefits

Comp & perks

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

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

hydronic distribution designP&IDsvalve strategiesinstrumentation designpipe sizingflow managementpressure dropbalancingmeasurement strategiesglycol-based cooling systems

Soft Skills

cross-functional collaborationdocumentation disciplinerevision controlinterface claritypractical field knowledgestartup and serviceability constraints