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Julien SommierJS

Julien Sommier

R&D Engineer

€400/day
Grenoble, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Julien

Mechanical Design Engineer – CAD & Industrialization
CREO • Siemens NX • SolidWorks • Machining • Sheet Metal • Injection Molding • Aluminum • Additive Manufacturing

R&D Engineer with over 7 years of experience, I support companies in the design, optimization, and industrialization of their mechanical products. I handle everything from needs analysis to validated prototypes, with strong expertise in urban furniture, electronic enclosures, injection molded parts, aluminum structures, and additive manufacturing.

✔ What I bring to you
  • Complete mechanical design: architecture, 3D modeling, process selection.
  • 2D drawings (ISO/GPS), dimension chains, tolerances, BOMs, and technical files.
  • Production preparation and multi-process industrialization: machining, sheet metal, extrusion, casting, plastic injection, additive manufacturing.
  • Integration of design, electronics, and thermal aspects.
  • Technical management: design reviews, supplier follow-up, feasibility studies, prototyping, mechanical compliance testing.
  • Documentation: assembly manuals, PPAP files, DFMEA, PLM management (SAP, Windchill, Teamcenter).
✔ Areas of Expertise
  • Complete mechanical product development
  • Redesign and reliability improvement of assemblies
  • Prototyping, testing, mechanical validation
  • Technical files and industrialization
  • Plastic/Sheet Metal/Aluminum Design
  • Design for additive manufacturing (topological optimization, lattices)
✔ Why work together?
  • Broad experience, complex multi-material products
  • Rigor, autonomy, results-oriented
  • Ability to transform your needs into concrete and industrializable solutions
I propose an initial discussion to define your needs and move forward effectively on your project.
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Basic

Can work on-site
Grenoble (up to 50km)

Experience

  • JCDecaux
    R&D Engineer
    October 2021 - Today (4 years and 8 months)
    78370 Plaisir, France
    Design and development of various urban furniture (shelters, digital furniture, bicycles, sanitary facilities) with particular expertise in the mechanical part and the integration of different elements (electrical, electronic, solar, digital).
    • Requirements analysis, specifications
    • Mechanical design (PTC Creo) of furniture using different manufacturing processes: Machining, Casting, Aluminum Extrusion, Sheet Metal, Welding and Assembly, Additive Manufacturing, Surface Treatments
    • Consideration of Design, mechanical, electronic, and thermal constraints
    • Drawing creation (ISO dimensioning) & dimension chains
    • Establishment of Bills of Materials (BOM) in PLM (SAP), including drawings and necessary definition documents, facilitating traceability and resource management.
    • Launch of prototypes, first production runs, and mechanical compliance testing
    • Design Reviews with design, calculation, electronics, and thermal departments
    • Feasibility Reviews with suppliers
    Mechanical Design Needs Analysis Multidisciplinary Teamwork CAD PTC Creo
  • Siemens SI,
    Mechanical Design Engineer
    March 2021 - October 2021 (7 months)
    78140 Vélizy-Villacoublay, France
    Mechanical design of an ECCC enclosure, involving the design of new plastic injection and fine sheet metal parts as well as the modification of existing products.
    • Definition of 3D digital models in NX 12
    • Creation of associated drawings, BOMs
    • Management of requirement documents such as PPAP (APQP), DFMEA, DJD, Compliance Matrix.
    • Compilation of product files on MyTeamcenter (PDM/PLM Tool)
    • Feasibility reviews with suppliers
    Managed a 3D migration project, leading teams in Beijing (China). Continuous improvement on the packaging process.
    CAD Siemens NX Teamcenter Supplier Relations Mechanical Design
  • Multistation,
    Additive Manufacturing Engineer
    January 2017 - January 2020 (3 years)
    Paris, France
    Design engineer in the field of additive manufacturing.
    • Feasibility studies and technical specifications.
    • Design and modeling, topological optimization, lattice structures (Siemens NX, Inspire), Process simulation
    • Responsible for the production launch of a range of HP Multi Jet Fusion polymer 3D printers.
    • Responsible for the production launch of a range of HP Multi Jet Fusion polymer 3D printers.
    • 3D Scanning, dimensional control, reverse engineering (Geomagix Control X, Design X)
    3D Printing Manufacturing Processes Application Engineer 3D Scanning

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Education

  • Engineering Degree
    Grenoble INP School
    2017
    Diplôme d'ingénieur
  • Erasmus
    2014

Skill set

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