Mechanical Engineer - Hydronics
Armada, Bellevue, WA, United States
Overview
Armada is a full-stack edge infrastructure company delivering compute, connectivity, and sovereign AI/ML to remote locations. Armada is backed by notable investors and partnerships and aims to bridge the digital divide.
About the role
Mechanical Engineer - Hydronics (Distribution Focus) to own the mechanical distribution architecture for the modular liquid-cooled data center platform. This role covers piping, valves, instrumentation, module interconnects, and serviceability across the primary water loop and secondary PG25 loop. This is a hands-on architecture and execution role focused on building a system that is repeatable, commissionable, maintainable, and scalable across deployments. The right candidate will move a design from concept into manufacturing, field installation, startup, and long-term operation.
You will work with internal engineering teams, OEMs, fabricators, controls, manufacturing, and commissioning leads to ensure the mechanical distribution layer is robust, standardized, and ready for deployment.
Location . This role is office-based at our Bellevue, Washington office.
What Youinish Youill-do
Key Responsibilities
Hydronic Architecture Ownership: Own the hydronic distribution architecture across primary water/PG25 loop and secondary water/PG25 loop; define and standardize 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; align plant, distribution, and rack cooling interfaces.
Distribution Design and Interface Control: Own distribution P&IDs, valve schedules, instrumentation schedules; maintain revision discipline, tagging standards, and interface clarity across the mechanical distribution package; define boundaries and interfaces between plant equipment, CDUs, rack components, and module-to-module interconnects; develop and maintain interface control documentation for hydronic system boundaries.
Commissioning-First Design: 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 and what startup performance looks like.
Pipe Sizing and Pressure Drop Management: Own pipe sizing methodology and pressure drop strategy for PG25 and water loops; define practical balancing and instrumentation placement; ensure real-world field performance aligns with design intent; establish repeatable standards across product variants.
Layout, Serviceability, and Buildability: Own mechanical distribution layout packages and service clearance requirements; ensure safe access, maintenance, replacement, and long-term serviceability; support design for manufacturing by standardizing routing approaches, fittings strategy, tolerances, and assembly expectations; define clear factory-built versus field-installed scope boundaries.
Modular Interconnect Strategy: 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.
Cross-Functional Integration: Partner with mechanical plant, thermal, electrical, controls, manufacturing, and commissioning teams; coordinate system interfaces while maintaining baseline discipline; work with OEMs and fabricators and own the internal distribution architecture and standards; support factory builds, field feedback, and lessons learned for future revisions.
Required Qualifications
7+ years of experience in hydronic distribution design for data centers, industrial systems, mission-critical HVAC, or equivalent 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
Preferred Experience and Skills
Experience with liquid-to-liquid and liquid-to-air cooling systems for high-density compute or AI/HPC environments
Familiarity with modular or prefabricated infrastructure systems
Understanding and experience in AFT Fathom, Pipeflo and CFD products
CAD or BIM fluency sufficient for 3D coordination, clash avoidance, and clearance validation
PE license in Mechanical Engineering, or equivalent depth of experience
Compensation
For U.S. based candidates, the starting base salary range varies by location, experience, skills, and qualifications. This role will include equity and subsidized benefits (details available upon request). We use a geographic pay structure based on cost-of-labor markets.
Tier 1 : $157,600 – $197,000
Tier 2 : $137,040 – $171,300
Final compensation will be determined by experience, scope, and level, and may vary from the posted range.
Benefits
Competitive base salary and equity
Medical, dental, and vision (subsidized cost)
Health savings accounts (HSA), flexible spending accounts (FSA), and dependent care FSAs
Retirement plan options, including 401(k) and Roth 401(k)
Unlimited paid time off (PTO)
14 paid company holidays per year
Compensation: $154,560 USD - $193,200 USD
Your fit
If You're
A go-getter with a growth mindset who is curious, with business acumen and a drive to build relevant skills
A detail-oriented problem-solver who can gather information, solve problems, and deliver results
Thrives in a fast-paced environment with an entrepreneurial spirit
A collaborative team player focused on business success
Highly organized and results-driven with strong prioritization
Equal Opportunity Statement
Armada is an equal opportunity employer. We prohibit discrimination or harassment based on race, color, gender, religion, sexual orientation, national origin, disability, genetic information, pregnancy, or any other characteristic protected by law. This policy applies to all employment decisions, including hiring, promotions, and compensation.
Unsolicited Resumes and Candidates
Armada does not accept unsolicited resumes or candidate submissions from external agencies or recruiters. All candidates must apply directly through our careers page.
#J-18808-Ljbffr
Armada is a full-stack edge infrastructure company delivering compute, connectivity, and sovereign AI/ML to remote locations. Armada is backed by notable investors and partnerships and aims to bridge the digital divide.
About the role
Mechanical Engineer - Hydronics (Distribution Focus) to own the mechanical distribution architecture for the modular liquid-cooled data center platform. This role covers piping, valves, instrumentation, module interconnects, and serviceability across the primary water loop and secondary PG25 loop. This is a hands-on architecture and execution role focused on building a system that is repeatable, commissionable, maintainable, and scalable across deployments. The right candidate will move a design from concept into manufacturing, field installation, startup, and long-term operation.
You will work with internal engineering teams, OEMs, fabricators, controls, manufacturing, and commissioning leads to ensure the mechanical distribution layer is robust, standardized, and ready for deployment.
Location . This role is office-based at our Bellevue, Washington office.
What Youinish Youill-do
Key Responsibilities
Hydronic Architecture Ownership: Own the hydronic distribution architecture across primary water/PG25 loop and secondary water/PG25 loop; define and standardize 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; align plant, distribution, and rack cooling interfaces.
Distribution Design and Interface Control: Own distribution P&IDs, valve schedules, instrumentation schedules; maintain revision discipline, tagging standards, and interface clarity across the mechanical distribution package; define boundaries and interfaces between plant equipment, CDUs, rack components, and module-to-module interconnects; develop and maintain interface control documentation for hydronic system boundaries.
Commissioning-First Design: 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 and what startup performance looks like.
Pipe Sizing and Pressure Drop Management: Own pipe sizing methodology and pressure drop strategy for PG25 and water loops; define practical balancing and instrumentation placement; ensure real-world field performance aligns with design intent; establish repeatable standards across product variants.
Layout, Serviceability, and Buildability: Own mechanical distribution layout packages and service clearance requirements; ensure safe access, maintenance, replacement, and long-term serviceability; support design for manufacturing by standardizing routing approaches, fittings strategy, tolerances, and assembly expectations; define clear factory-built versus field-installed scope boundaries.
Modular Interconnect Strategy: 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.
Cross-Functional Integration: Partner with mechanical plant, thermal, electrical, controls, manufacturing, and commissioning teams; coordinate system interfaces while maintaining baseline discipline; work with OEMs and fabricators and own the internal distribution architecture and standards; support factory builds, field feedback, and lessons learned for future revisions.
Required Qualifications
7+ years of experience in hydronic distribution design for data centers, industrial systems, mission-critical HVAC, or equivalent 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
Preferred Experience and Skills
Experience with liquid-to-liquid and liquid-to-air cooling systems for high-density compute or AI/HPC environments
Familiarity with modular or prefabricated infrastructure systems
Understanding and experience in AFT Fathom, Pipeflo and CFD products
CAD or BIM fluency sufficient for 3D coordination, clash avoidance, and clearance validation
PE license in Mechanical Engineering, or equivalent depth of experience
Compensation
For U.S. based candidates, the starting base salary range varies by location, experience, skills, and qualifications. This role will include equity and subsidized benefits (details available upon request). We use a geographic pay structure based on cost-of-labor markets.
Tier 1 : $157,600 – $197,000
Tier 2 : $137,040 – $171,300
Final compensation will be determined by experience, scope, and level, and may vary from the posted range.
Benefits
Competitive base salary and equity
Medical, dental, and vision (subsidized cost)
Health savings accounts (HSA), flexible spending accounts (FSA), and dependent care FSAs
Retirement plan options, including 401(k) and Roth 401(k)
Unlimited paid time off (PTO)
14 paid company holidays per year
Compensation: $154,560 USD - $193,200 USD
Your fit
If You're
A go-getter with a growth mindset who is curious, with business acumen and a drive to build relevant skills
A detail-oriented problem-solver who can gather information, solve problems, and deliver results
Thrives in a fast-paced environment with an entrepreneurial spirit
A collaborative team player focused on business success
Highly organized and results-driven with strong prioritization
Equal Opportunity Statement
Armada is an equal opportunity employer. We prohibit discrimination or harassment based on race, color, gender, religion, sexual orientation, national origin, disability, genetic information, pregnancy, or any other characteristic protected by law. This policy applies to all employment decisions, including hiring, promotions, and compensation.
Unsolicited Resumes and Candidates
Armada does not accept unsolicited resumes or candidate submissions from external agencies or recruiters. All candidates must apply directly through our careers page.
#J-18808-Ljbffr