{"id":3269525,"url":"https://alion.io/job/vertiv-tm-sr-principal-engineer-global-shenzhen","title":"TM-Sr. Principal Engineer (Global)-Shenzhen","company":{"id":58885,"name":"Vertiv","domain":"vertiv.com","url":"https://alion.io/company/vertiv","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"B","score":83,"open_postings":417,"ghost_share":0.002,"stale_share":0.871,"repost_share":0.005,"time_to_fill_p50_days":14,"computed_at":"2026-11-04T06:34:25Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"lead","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Shenzhen, China"],"countries":["CN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":34000,"max_usd":86000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2629},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-10-26T05:38:33Z","employer_posted_date":"2026-10-26","last_verified_at":"2026-11-04T18:47:29Z","board_verified":true,"closed_at":null,"days_open":9,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":9},"description":"Key ResponsibilitiesLead the system-level design of direct expansion cooling systems, including refrigeration cycle scheme definition, thermal load calculation, refrigerant matching, compressor, evaporator, condenser, expansion device and control logic selection & matching.\nConduct thermal & fluid simulation (heat transfer, refrigerant two-phase flow, pressure drop) and system performance prediction; define test specifications, organize bench & prototype testing, analyze test data, identify performance bottlenecks and drive design iteration.\nOwn reliability and robustness assessment of DX cooling systems, evaluate system behaviors under extreme ambient, partial load and transient operating conditions; identify failure modes and propose mitigation solutions.\nCollaborate closely with mechanical, electrical, controls, manufacturing and quality teams to translate system requirements into detailed design, support DFM review, resolve technical risks during prototype, pilot and mass production phases.\nProvide technical support for product validation, field commissioning and customer escalations; diagnose complex DX system issues (capacity deviation, hunting, liquid flood-back, noise, reliability failure) and implement corrective actions.\nTrack industry latest DX cooling technologies, refrigerants, components and standards; conduct benchmarking, technical feasibility study and technology pre-research for next-generation thermal platforms.\nCompile system design documents, calculation reports, test plans, technical specifications and lessons learned; mentor junior thermal engineers and build up DX system capability within the team.\nRequired Qualifications & SkillsBachelor or above in Thermal Engineering, Refrigeration & Cryogenic Engineering, Energy & Power Engineering or related thermal discipline.\n10+ years hands-on experience in direct expansion refrigeration system design & development, solid understanding of vapor-compression refrigeration cycle, two-phase heat transfer, refrigerant properties and DX system control principles.\nProven experience in DX system sizing, component matching, performance testing and troubleshooting; familiar with refrigeration components: scroll/compressor, fin-tube evaporator/condenser, TXV/EEV, accumulator, oil separator.\nExperience using thermal simulation tools (e.g., EES, CoolProp, Fluent, or system cycle simulation tools); capable of thermal load calculation and system performance analysis.\nFamiliar with relevant industry standards for cooling equipment, product reliability test methodology, environmental & safety requirements for refrigerants.\nStrong systematic thinking, good cross-team communication ability; able to prioritize multiple development projects under tight schedules.\nGood English reading & writing capability for technical documents and global cross-team communication.\nPreferred QualificationsExperience in data center / mission critical cooling DX systems is a strong plus.\nHands-on experience with low-GWP refrigerant application and system design optimization.\nBackground in system controls for refrigeration circuits, EEV control algorithm tuning.\nExperience leading DX cooling new product introduction (NPI) from concept to mass production.","description_format":"text","description_chars":3236,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Servers & Data Center Hardware","Power Supplies & Power Electronics","HVAC & Refrigeration"],"lifecycle":[{"event":"open","at":"2026-10-26T10:53:24Z"}],"visa":[],"liveness":{"score":54,"band":"ok","label":"Likely open","p_open":1,"p_active":0.599,"p_room":0.9,"age_days":9,"expected_fill_days":14,"reasons":["conf:4","stale_co","velocity","win:mid","comp:brand"],"computed_at":"2026-11-04T06:34:25Z"},"pay":null,"html_url":"https://alion.io/job/vertiv-tm-sr-principal-engineer-global-shenzhen","json_url":"https://alion.io/job/vertiv-tm-sr-principal-engineer-global-shenzhen.json","meta":{"generated_at":"2026-11-04T23:18:35Z","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":259,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-05T00:00:00Z"}},"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":58885},"rest":"https://alion.io/mcp/rest/get_company?id=58885"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fvertiv-tm-sr-principal-engineer-global-shenzhen"},{"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%2Fvertiv-tm-sr-principal-engineer-global-shenzhen"},{"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%2Fvertiv-tm-sr-principal-engineer-global-shenzhen"},{"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/vertiv-tm-sr-principal-engineer-global-shenzhen\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fvertiv-tm-sr-principal-engineer-global-shenzhen"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3269525}},{"tool":"search_jobs","arguments":{"company":"vertiv.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3269525},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); 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