
Julien Mathias
INDUSTRIAL AND PRODUCT DESIGN
Skills

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Werkervaring
Medical Device Plastic Housing Design Engineer
Medical Aesthetics Educations • Freelance
May 2025 - Present • 1 yr 5 mos
Designed plastic housings and enclosures for medical devices using SolidWorks, with KeyShot for realistic product visualization. Developed detailed CAD models featuring component mounting structures, access panels, enclosure joints, ventilation where appropriate, and cable or connector interfaces. Applied DFM principles for injection molding, including draft angles, wall thickness, ribs, and snap fit features. Prepared product renderings and design documentation to support concept reviews, prototyping, and manufacturing planning, with attention to applicable ISO requirements and device-specific design constraints.
Automotive Plastic Component & Injection Molding CAD Designer
CADworks Limited • Freelance
Sep 2024 - Present • 2 yrs 1 mo
Designed automotive ABS plastic components using CATIA and SolidWorks, focusing on injection molding and manufacturing optimization. Developed detailed 3D part models with draft angles, ribs, bosses, fillets, wall thickness considerations, and assembly interfaces. Reviewed component geometry for moldability, tooling accessibility, dimensional consistency, and material efficiency. Delivered CAD models and technical drawings to support prototype development, mold design, and automotive production workflows.
Lithium Battery Pack Enclosure Design Engineer
Battery Storage Company • Freelance
Feb 2024 - Present • 2 yrs 8 mos
Created custom lithium battery pack enclosures using Fusion 360 and SolidWorks. Designed protective housings with internal component clearances, mounting points, cable routing, connector openings, and assembly features. Applied Design for Manufacturing (DFM) principles to optimize enclosure geometry, material use, assembly, and production feasibility. Prepared 3D CAD models and supporting technical drawings for prototyping and manufacturing, while considering thermal management and electrical insulation requirements.