[Skip to main content](#main-content) [ OpenNash ](https://opennash.com/) / [Jobs](https://jobs.opennash.com/) [ 01 Search jobs](https://jobs.opennash.com/search/)[ 02 Companies](https://jobs.opennash.com/explore/)[ 03 Hiring report](https://jobs.opennash.com/reports/hiring/)[ 04 AI assistants](https://jobs.opennash.com/connect/)[ 05 How it works](https://jobs.opennash.com/methodology/) Vertiv Holdings · Shenzhen-xili, China # TM-Sr. Principal Engineer (Global)-Shenzhen Shenzhen-xili, China Senior individual contributor Operations Listed on Vertiv Holdings’s official careers site. Posted October 26, 2026. Check that it is still open and apply there. [Apply on Vertiv Holdings’s careers site →](https://egup.fa.us2.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX/job/20284540) [OpenNash Jobs](https://jobs.opennash.com/) / [Vertiv Holdings](https://jobs.opennash.com/companies/vertiv-holdings/) / TM-Sr. Principal Engineer (Global)-Shenzhen ## Job description ### Key Responsibilities Lead 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. Conduct 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. Own 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. Collaborate 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. Provide 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. Track industry latest DX cooling technologies, refrigerants, components and standards; conduct benchmarking, technical feasibility study and technology pre-research for next-generation thermal platforms. Compile 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. ### Required Qualifications & Skills Bachelor or above in Thermal Engineering, Refrigeration & Cryogenic Engineering, Energy & Power Engineering or related thermal discipline. 10+ 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. Proven 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. Experience using thermal simulation tools (e.g., EES, CoolProp, Fluent, or system cycle simulation tools); capable of thermal load calculation and system performance analysis. Familiar with relevant industry standards for cooling equipment, product reliability test methodology, environmental & safety requirements for refrigerants. Strong systematic thinking, good cross-team communication ability; able to prioritize multiple development projects under tight schedules. Good English reading & writing capability for technical documents and global cross-team communication. ### Preferred Qualifications Experience in data center / mission critical cooling DX systems is a strong plus. Hands-on experience with low-GWP refrigerant application and system design optimization. Background in system controls for refrigeration circuits, EEV control algorithm tuning. Experience leading DX cooling new product introduction (NPI) from concept to mass production. ## At a glance - Posted by the employer: Oct 26, 2026 - First seen by OpenNash: Nov 1, 2026 - Last checked: Nov 8, 2026 - Listed for: 13 days - Location: Shenzhen-xili, China[Apply on Vertiv Holdings’s careers site →](https://egup.fa.us2.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX/job/20284540) ## Hiring at Vertiv Holdings - Open jobs: 3,305 - New in the last 7 days: After two weekly collections - Tracked since: Jul 10, 2026 [All Vertiv Holdings jobs](https://jobs.opennash.com/companies/vertiv-holdings/) · [Weekly hiring report](/reports/hiring/) ## More jobs at Vertiv Holdings ### [TM-Cooling Engineer(Local)-Shenzhen](https://jobs.opennash.com/companies/vertiv-holdings/jobs/a4e553683593ca9cb867/) Shenzhen-xili, China ### [TM-Cooling System Engineer(Global)-Shenzhen](https://jobs.opennash.com/companies/vertiv-holdings/jobs/cf7bca44d409c0e5dfe3/) Shenzhen-xili, China ### [TM-Electrical Engineer(Global)-Shenzhen](https://jobs.opennash.com/companies/vertiv-holdings/jobs/30edbfadf998cce24cff/) Shenzhen-xili, China ### [TM-Mechanical Engineer(Global)-Shenzhen](https://jobs.opennash.com/companies/vertiv-holdings/jobs/bb1b71695ce477e596fa/) Shenzhen-xili, China ### [TM-Product Management Specialist(Global)-Shenzhen](https://jobs.opennash.com/companies/vertiv-holdings/jobs/d8adebc86a28aafc9cc9/) Shenzhen-xili, China ## Similar jobs at other companies ### [Shenzhen, Zhuhai, Dongguan, Fo Principal R&Dproduct Dvl Engineer (Busbar) 1 Gd](https://jobs.opennash.com/companies/te-connectivity/jobs/82e7b394056083797298/) TE Connectivity ### [Site Supervisor/Manager - Shenzhen](https://jobs.opennash.com/companies/tokyo-electron/jobs/613b5cae45b842c58190/) Tokyo Electron · Shenzhen ### [Shenzhen Sr R&Dproduct Dvl Engineer Gd 518108](https://jobs.opennash.com/companies/te-connectivity/jobs/369e098b155bc0969275/) TE Connectivity ### [Team Manager (Shenzhen)/Team Manager (Shenzhen)](https://jobs.opennash.com/companies/lvmh-louis-vuitton-moet-hennessy/jobs/b96219cc187c28cbc10b/) LVMH Louis Vuitton Moet Hennessy · 深圳, 广东省, Chinese Mainland ### [Team Manager (Shenzhen Airport)/Team Manager (Shenzhen Airport)](https://jobs.opennash.com/companies/lvmh-louis-vuitton-moet-hennessy/jobs/7b15bd7a97e2d2f5f4dc/) LVMH Louis Vuitton Moet Hennessy · 宝安区, 深圳/宝安区, Chinese Mainland [Operations jobs](/functions/operations/) OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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