{"id":1759877,"url":"https://alion.io/job/armada-senior-mechanical-design-engineer-liquid-cooling-systems-2","title":"Senior Mechanical Design Engineer – Liquid Cooling Systems","company":{"id":23110,"name":"Armada","domain":"armada.ai","url":"https://alion.io/company/armada-ai","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":70,"open_postings":5,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":66,"computed_at":"2026-10-26T05:57:25Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["United States"],"countries":["US"],"hiring_countries":["US"],"hiring_countries_total":1,"salary":{"min":157600,"max":185000,"currency":"USD","period":"year","gross":null,"usd_annual":185000},"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AutoCAD","optional":true},{"name":"HPC","optional":true},{"name":"SolidWorks","optional":true}],"status":"live","first_seen_at":"2026-10-02T17:48:46Z","employer_posted_date":"2026-10-02","last_verified_at":"2026-10-26T11:14:05Z","board_verified":true,"closed_at":null,"days_open":23,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":23},"description":"About the Company\nArmada is the hyperscaler for the edge, delivering modular AI infrastructure from first deployment to AI factory with speed, scale and sovereignty. Named one of Fast Company's Most Innovative Companies and to the CNBC Disruptor 50, Armada’s solutions are deployed in over 60 countries globally for organizations ranging from energy to defense. \nWith nearly $500 million in funding to date, Armada is backed by leading investors including Founders Fund, Lux, BlackRock and Microsoft (M12), alongside strategic partnerships with Microsoft, Dell, Palantir, NVIDIA, SpaceX, and Skydio. We are building the infrastructure layer for sovereign and edge AI - rugged, deployable compute for customers that cannot rely on centralized cloud.\nWorking at Armada means taking ownership, driving autonomy, and delivering impact. You’ll tackle challenges that haven’t been solved before and help build something transformative from the ground up. What you do here will not only define your career but help further Armada’s mission to bridge the digital divide for customers around the world. \nAbout the role\nArmada is seeking a Senior Mechanical Systems / Design Engineer to lead the design and development of liquid cooling and mechanical distribution systems for our modular AI data center platforms. This role sits at the intersection of mechanical design, hydraulic engineering, thermal infrastructure, manufacturing, controls, and commissioning.You will own the mechanical distribution architecture connecting heat-rejection equipment, pumps, piping, manifolds, coolant distribution units, rack cooling systems, and modular interconnects. You will translate system requirements into practical, serviceable, and repeatable designs that can be manufactured in a factory and deployed consistently across multiple sites.This is not a traditional consulting or drawing-review role. You will help establish the design rules, technical standards, interfaces, and commissioning philosophy behind the product itself. \n\nLocation. This role is remote.\n\nWhat You'll Do (Key Responsibilities)\n\nMechanical and Liquid Cooling Architecture \nOwn the end-to-end mechanical cooling and fluid-distribution architecture for modular data center platforms. \nDefine primary, secondary, and rack-level cooling boundaries. \nEstablish pumping, flow-control, pressure-management, balancing, and redundancy strategies. \nAlign heat-rejection equipment, distribution piping, CDUs, rack manifolds, rear-door heat exchangers, and other cooling interfaces. \nDevelop scalable architectures that support multiple product configurations and deployment sizes. \nHydraulic System Design \nPerform and review pipe-sizing, flow, pressure-drop, pump-head, and system-volume calculations. \nDevelop hydraulic models for water and glycol-based systems. \nAccount for fluid concentration, viscosity, temperature, fittings, valves, strainers, heat exchangers, and equipment pressure losses. \nDefine control-valve, balancing-valve, bypass, minimum-flow, and differential-pressure strategies. \nValidate system performance across normal, part-load, maintenance, startup, and failure conditions. \nMechanical Design and Documentation \nOwn P&IDs, mechanical schematics, equipment schedules, valve schedules, instrumentation schedules, and design calculations. \nDevelop mechanical design criteria, basis-of-design requirements, and standard details. \nDefine clear equipment and scope boundaries between plant systems, modules, CDUs, rack cooling, and field interconnections. \nMaintain disciplined revision control and technical traceability across the mechanical design package. \nReview vendor drawings, submittals, calculations, and equipment selections for compliance with system intent. \n\nModular Product Integration \nDefine mechanical interfaces between factory-built modules and field-installed infrastructure. \nDevelop repeatable interconnect strategies for supply and return piping, manifolds, flexible connections, isolation valves, quick disconnects, drains, vents, and leak detection. \nEstablish labeling, connection, access, and installation standards that reduce field variability. \nSupport product configurations designed for transport, rapid installation, and phased expansion. \nDesign for Manufacturing and Serviceability \nDevelop layouts that support repeatable fabrication, assembly, inspection, testing, and installation. \nStandardize piping routes, fittings, valve assemblies, supports, connection points, and mechanical components where practical. \nCoordinate equipment clearances, removal paths, service access, drain points, vent points, and filter or strainer access. \nPartner with manufacturing teams to resolve buildability issues and improve future revisions. \nTranslate field and factory feedback into product improvements. \nControls and Instrumentation Integration \nDefine the mechanical measurement and control requirements for temperature, flow, differential pressure, pressure, leak detection, fluid level, pump status, and valve position. \nPartner with controls engineers to develop system operating sequences and alarm strategies. \nSupport pump staging, variable-speed control, minimum-flow protection, equipment enablement, and failure-response logic. \nHelp ensure mechanical system data is available for commissioning, operations, and remote monitoring. \nCommissioning-First Design \nDesign systems for safe and efficient filling, flushing, venting, draining, testing, balancing, and startup. \nDefine isolation, bypass, temporary connection, and load-bank testing requirements. \nDevelop or support factory acceptance, site acceptance, and integrated systems testing procedures. \nEstablish performance-verification criteria for flow, pressure, temperature, heat rejection, controls, alarms, and failure modes. \nWork directly with commissioning and field teams during startup and troubleshooting. \nCross-Functional Engineering Leadership \nPartner with thermal, electrical, controls, structural, manufacturing, commissioning, supply chain, and product teams. \nCoordinate directly with OEMs, equipment manufacturers, fabricators, and engineering partners. \nIdentify interface risks, design gaps, and single points of failure early. \nMake clear technical decisions while maintaining alignment across the broader product architecture. \nCommunicate complex system behavior in a practical way to both technical and nontechnical stakeholders. \nRequired Qualifications \n7 or more years of experience designing mechanical cooling, hydraulic distribution, process cooling, or mission-critical infrastructure systems. \nExperience with data centers, semiconductor facilities, industrial process cooling, central utility plants, or comparable high-reliability environments. \nStrong knowledge of pipe sizing, pump selection, pressure-drop analysis, flow balancing, system volume, and hydraulic control. \nExperience developing and owning P&IDs, mechanical calculations, equipment schedules, valve schedules, and instrumentation requirements. \nPractical knowledge of chilled-water, condenser-water, glycol, or process-fluid systems. \nExperience designing for commissioning, maintenance, isolation, flushing, venting, draining, and service access. \nAbility to coordinate across engineering, manufacturing, controls, commissioning, and field teams. \nStrong technical judgment and the ability to own work with limited oversight. \n\nPreferred Experience and Skills\nExperience with direct liquid cooling for AI or HPC systems. \nExperience with CDUs, rack manifolds, cold plates, rear-door heat exchangers, liquid-to-liquid heat exchangers, or liquid-to-air systems. \nBackground in modular, prefabricated, skid-based, or containerized infrastructure. \nExperience with AFT Fathom, Pipe-Flo, or comparable hydraulic modeling tools. \nFamiliarity with CFD, thermal modeling, or transient analysis. \nProficiency with AutoCAD, Revit, Plant 3D, SolidWorks, Inventor, or similar design tools. \nExperience supporting FAT, SAT, IST, or field commissioning. \nProfessional Engineer license or equivalent technical depth. \n\nCompensation\nFor U.S. Based candidates: To ensure fairness and transparency, the starting base salary range for this role for candidates in the U.S. are listed below, varying based on location experience, skills, and qualifications.\nIn addition to base salary, this role will also be offered equity and subsidized benefits (details available upon request).\nWe use a geographic pay structure based on cost-of-labor markets. \n Tier 1 (e.g., SF Bay Area, NYC, Seattle): $157,600 - $185,000 \n Tier 2 (most U.S. metro areas): $137,040 - $171,300 \n Tier 3 (other cities): $130,188 -$162,735\nFinal compensation will be determined by experience, scope, and level, and may vary from the posted range. \n\nBenefits\nCompetitive base salary and equity\nMedical, dental, and vision (subsidized cost)\nHealth savings accounts (HSA), flexible spending accounts (FSA), and dependent care FSAs (DCFSA)\nRetirement plan options, including 401(k) and Roth 401(k)\nUnlimited paid time off (PTO)\n14 paid company holidays per year\nCompensation\n$137,040—$171,300 USD\nYou're a Great Fit if You're\nA go-getter with a growth mindset. You're intellectually curious, have strong business acumen, and actively seek opportunities to build relevant skills and knowledge \nA detail-oriented problem-solver. You can independently gather information, solve problems efficiently, and deliver results with a \"get-it-done\" attitude \nThrive in a fast-paced environment. You're energized by an entrepreneurial spirit, capable of working quickly, and excited to contribute to a growing company\nA collaborative team player. You focus on business success and are motivated by team accomplishment vs personal agenda \nHighly organized and results-driven. Strong prioritization skills and a dedicated work ethic are essential for you \nEqual Opportunity Statement\nAt Armada, we are committed to fostering a work environment where everyone is given equal opportunities to thrive. As an equal opportunity employer, we strictly 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. Our hiring is guided by qualifications, merit, and the business needs at the time.\nUnsolicited Resumes and Candidates\nArmada does not accept unsolicited resumes or candidate submissions from external agencies or recruiters. All candidates must apply directly through our careers page. Any resumes submitted by agencies without a prior signed agreement will be considered unsolicited and Armada will not be obligated to pay any fees.","description_format":"text","description_chars":10776,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity","Retirement plans"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Computer Components","Edge AI","AI Compute & Inference"],"lifecycle":[{"event":"open","at":"2026-10-03T12:18:15Z"}],"visa":[],"liveness":{"score":77,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":0.9,"age_days":23,"expected_fill_days":66,"reasons":["conf:3","win:mid"],"computed_at":"2026-10-26T05:57:25Z"},"pay":{"stated_usd_annual":185000,"is_top_pay":true},"html_url":"https://alion.io/job/armada-senior-mechanical-design-engineer-liquid-cooling-systems-2","json_url":"https://alion.io/job/armada-senior-mechanical-design-engineer-liquid-cooling-systems-2.json","meta":{"generated_at":"2026-10-26T13:02:13Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":18049,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-27T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":23110},"rest":"https://alion.io/mcp/rest/get_company?id=23110"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Farmada-senior-mechanical-design-engineer-liquid-cooling-systems-2"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Farmada-senior-mechanical-design-engineer-liquid-cooling-systems-2"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Farmada-senior-mechanical-design-engineer-liquid-cooling-systems-2"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/armada-senior-mechanical-design-engineer-liquid-cooling-systems-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Farmada-senior-mechanical-design-engineer-liquid-cooling-systems-2"}]}