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Mechanical Engineer (CH)

Ajax Systems· System Department – Video Department
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Hybrid (Shenzhen-Dongguan-Guangzhou-Foshan)Full-timePosted 9mo ago

About the role

Mechanical Engineer to design and oversee plastic enclosures and mechanical assemblies for consumer electronics, focusing on DFM/DFH for mass production, with close collaboration across hardware, industrial design, QA and manufacturing teams.

Responsibilities

  • Complete lifecycle design of plastic enclosures and mechanical assemblies for consumer electronics.
  • Development of DFM- and DFH-oriented solutions considering mass production processes (plastic injection molding, assembly, sealing, serviceability).
  • Collaboration with hardware and embedded engineers, industrial designers, technologists, quality control, and manufacturing departments.
  • Design of ergonomic, intuitive solutions adaptable to different operating environments.
  • Preparation of production transfer documentation (2D drawings, specifications, technical requirements, 3D models for molds).
  • Support of mold development and approval of modifications after initial mold trials (T0–T2), including defect analysis.
  • Participation in testing and feedback from prototypes and production, incorporating design improvements.
  • Verification of engineering compliance of the finished product with expected technical parameters (stiffness, assembly, weight, IP protection).
  • Oversight of the product lifecycle from concept to mass production, including cost analysis and assessment of the impact of design decisions on production costs.
  • Communication with Chinese factories: technical specifications, drawing reviews, change control, feedback on prototypes and production samples.
  • Assessment of manufacturing risks in China: equipment limitations, mold quality, shrinkage, production tolerances, and the influence of packaging and logistics on design.
  • Inspection of samples from China: defect analysis (shrinkage, warping, poor casting), initial product assembly, and reporting with recommendations.
  • Consideration of potential scaling difficulties in China: timeline tracking, mold duplication, and price optimization.
  • Continuous communication via email, video calls, document comments (in English), and participation in editing specifications based on feedback from the Chinese side.

Qualifications

  • English communication at B2+ level (oral and written) for technical discourse with Chinese suppliers.

Skills

Required:3D modelingDFM / DFA / ManufacturingTesting & prototypingMaterials scienceMechanical design for IP sealing and thermal managementDocumentation & production supportCommunication & tools

Benefits

  • Not explicitly listed in the description.
Last updated Oct 21, 2026. Interested? Apply on the company site.
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Ajax alarm system includes everything you need to protect your property | Professional home security system that combines CCTV, fire alarm and automation

intrusion protectionvideo surveillancefire and life safetyautomationCCTVfire alarmautomationremote sites
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