RESPONSIBILITIES AND DUTIES: + Responsible for structural design, improvement, and standardization of products such as butterfly valves, ball valves, balancing valves, with a focus on stainless steel valves used in liquid cooling systems. + Complete product selection, material selection, 3D modeling (Inventor), and output of engineering drawings based on project requirements. + Perform structural calculations, strength checks, flow resistance analysis, and reliability optimization for key valve components (valve body, valve seat, valve stem, seals, etc.). + Prepare and maintain technical documents, including: BOM, technical specifications, design changes (ECN), test standards (DVP), assembly drawings, and technical process requirements. + Provide technical support for product prototype trials, track tests (pressure resistance, sealing, lifespan, torque, flow, etc.), and promote design optimization. + Develop valve design input requirements based on application scenarios (liquid cooling, HVAC, etc.), ensuring products comply with relevant national/industry standards (such as GB, ASME, ISO, DIN). + Support the procurement team in supplier development and technical evaluation, and participate in sampling and quality control of castings, forgings, and machined parts. + Assist the quality, production, and after-sales teams in resolving technical issues during valve production and at customer sites. + Participate in cost optimization (VAVE) projects, promoting structural optimization and material substitution. EDUCATION: Bachelor’s degree or above in Mechanical Engineering, Fluid Machinery, Process Equipment, or related fields. MANAGEMENT: NA QUALIFICATIONS: + 3+ years of design and R&D experience in the valve industry, familiar with any type of butterfly valves, ball valves, or balancing valves, and knowledge of two-way/three-way control valves; experience in designing sanitary-grade stainless steel valves is preferred. + Proficient in using Inventor; familiarity with finite element analysis and fluid analysis tools is preferred. + Familiar with valve-related standards, such as GB, ISO, ASME, API, DIN, etc. + Knowledgeable about common metal materials, rubber/plastic sealing materials, and their compatibility. + Possess basic capabilities in mechanical strength calculations, torque calculations, structural checks, and flow resistance analysis. + Meticulous work attitude, strong sense of responsibility, good cross-department communication skills, and ability to independently drive projects. + Able to read technical documents in English.