Ajax Systems
1001 - 5000 employees
🔐 Security
🔧 Hardware
☁️ SaaS
Security • Hardware • SaaS
Ajax Systems is a company specializing in the development of advanced security systems and solutions. They offer a range of products including intrusion protection, video surveillance, fire and life safety, as well as comfort and automation solutions. Their products are designed to integrate seamlessly, providing comprehensive security and automation for various facility types such as residential homes, commercial spaces, and industrial complexes. Ajax Systems places a strong emphasis on privacy protection and compliance with international standards. Their offerings include software solutions, hardware devices, and tools for both end users and professionals. The company also provides extensive customer support and has a global reach, protecting millions of people worldwide.
Mechanical Engineer
Job not on LinkedIn
🕒 December 29, 2025
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Ajax Systems
1001 - 5000 employees
🔐 Security
🔧 Hardware
☁️ SaaS
Security • Hardware • SaaS
Ajax Systems is a company specializing in the development of advanced security systems and solutions. They offer a range of products including intrusion protection, video surveillance, fire and life safety, as well as comfort and automation solutions. Their products are designed to integrate seamlessly, providing comprehensive security and automation for various facility types such as residential homes, commercial spaces, and industrial complexes. Ajax Systems places a strong emphasis on privacy protection and compliance with international standards. Their offerings include software solutions, hardware devices, and tools for both end users and professionals. The company also provides extensive customer support and has a global reach, protecting millions of people worldwide.
📋 Description
• 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.
🎯 Requirements
• 3D Modeling & Design: SolidWorks (95% solid modeling, 5% surface modeling), basic sheet metal modeling knowledge. • Creation of precise assemblies, constraints, tolerance verification, and preparation of models for molding production. • Ability to break down complex projects into sub-units, using reference geometry and configurations. • DFM / DFA / Manufacturing: Knowledge of mold design: opening directions, gating points, parting lines, risks of short shots/air pockets. • Optimization for scalability and cost reduction (minimize part count, reduce weld lines, shorten cycle time). • Experience working with factories in Ukraine and China; understanding of the mold lifecycle; participation in modifications after T1/T2. • Basics of metal processing technologies: bending, stamping, laser cutting, milling for internal frames and auxiliary parts. • Understanding of Chinese manufacturers’ practices: interpretation of drawings, overlooked details, confirmation processes. • Understanding of the Chinese production structure: project managers, engineers, suppliers. • Active participation in mold development discussions: steel selection, cost estimation, gating points, parting lines. • Familiarity with typical Chinese documentation formats: PDFs, STEP files, Excel specifications, compressed archives, WeTransfer/Alibaba Cloud. • Testing & Prototyping: Manual inspection, assembly, and analysis of critical nodes. • Identifying and resolving sealing, play, and fit issues. • Skilled in the use of measuring tools: calipers, micrometers, gauges, etc. • Materials Science & Standards: Properties of ABS, PC, PC+ABS, PA+GF, TPE, and TPU: shrinkage, impact strength, heat resistance, and elasticity. • Understanding material behavior during production and operation (temperature, humidity, UV). • Balancing cost, quality, and manufacturability when selecting materials. • Functional Elements: Development of fasteners, clips, guides, seals, TPE/TPU elements, and mounting slots. • Design of interface elements: buttons, indicators, light guides, ports, and ventilation openings. • Knowledge of sealing methods and IP protection standards (IP54–IP67), heat dissipation, and battery compartment design. • Considering Chinese factory constraints: wall thickness, micro gaps, welding, and assembly limitations. • Designing for high repairability and ease of assembly in outsourced Chinese facilities. • Documentation & Production Support: Generation of complete documentation bundles: 2D outlines, tolerance tables, BOMs, assembly specifications. • Implementation of changes based on prototype or production feedback. • Participation in preparing technical descriptions for QC, assembly instructions, and design documentation control. • Communication & Tools: English B2+ level – oral and written technical communication with Chinese suppliers. • Experience in communication with Chinese engineers, managers, and production teams (via Alibaba, WeChat, email, video calls). • Knowledge of Chinese business communication nuances: importance of confirmations, repetitions, and visual examples. • Use of SolidWorks PDM, Excel, Google Docs, Asana/Trello/Notion for project management.
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