Jean Sébastien Allet

Industrial mechanical engineer Sion · Valais · Switzerland

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Dents du Midi in winter, seen from Bellevue (Troistorrents) · Photo: Christian David, edited, CC BY-SA 4.0

Portrait of Jean Sébastien Allet

Available from June 2027

Nice to meet you

I run mechanical projects end to end: design, materials, testing and delivery. Four years as an automation apprentice first, then engineering school. IT enthusiast, I stay on top of new AI models and put them to work in my projects.

See my projects My CV Get in touch
Looking for
A mechanical engineer role
Degree
BSc Systems Engineering · Design & Materials, Dec 2026
Languages
French (native) · English C1 · German B1
Based in
Switzerland, open to relocate
Now
BSc thesis at TU Delft, Netherlands

Experience

Where I learned by doing.

  1. Delft University of Technology Now

    Exchange BSc thesis · Aerospace Structures & Materials Lab · Delft, Netherlands

    Aug → Dec 2026

    I study how to make recycled PP and HDPE work together. These two plastics don’t mix well, so the blends end up weak. I add compatibilizers to improve how they bond, then process the blends in the lab. After that, I test their mechanical and thermal properties to see which formulations could work for high-performance applications. I plan and track the whole project: schedule, lab work and reports.

    • Xplore MC 15 HT
    • Injection moulding
    • Tensile ISO 527-2
    • Microscopy
    The TU Delft sign on the campus in Delft

  2. Valais Wallis Racing Team

    Gearbox designer · Mechanical team · Formula Student, Sion

    Sep 2025 → Aug 2026

    I designed the stepped planetary gearbox of the 2026 4WD car: calculation (KISSsoft), CAD and drawings (Inventor), work with the manufacturer and assembly. I also set up the team’s CAD server (Autodesk Vault, 30+ users, 2500+ files), helped with chassis design and FEA, and helped to build the car. On site at FSG and FSA.

    • KISSsoft
    • Autodesk Inventor
    • Autodesk Vault
    • FSG · FSA
    Gearbox case study
    The Valais Wallis Racing Team with the car on track

  3. Alps Automation SA

    Automation apprentice (CFC) · Vouvry

    Jul 2022 → Jun 2023

    Last year of my apprenticeship. I wired and commissioned electrical cabinets. For my final project, I designed a robotised watchmaking machine, then produced the technical file to assemble and cost it: assembly drawings, parts lists, part drawings. Graded 5.9/6.0 (see Projects).

    • Electrical cabinets
    • Commissioning
    • Machine design
    3D model of the watchmaking machine I designed at Alps Automation

  4. Alro Engineering SA

    Automation apprentice (CFC) · Martigny

    Apr → Jun 2022

    PLC programming in TIA Portal and Step 7, for production lines and the chemical industry.

    • PLC
    • TIA Portal
    • Step 7
    PLC and I/O modules in an electrical cabinet

  5. Bachem SA

    Automation apprentice (CFC) · Vionnaz

    Jan → Mar 2022

    Sensor calibration, electrical installation and repairs, in ATEX zones and under cGMP rules.

    • Sensors
    • ATEX
    • cGMP
    The Bachem production plant in Vionnaz Photo: Michael Kunz, vollbild FOTOGRAFIE

Projects

Things I designed, built and tested.

Formula Student · Valais Wallis Racing Team

In-wheel stepped planetary gearbox

Designed from a blank page for the 2026 four-wheel-drive car.

I designed everything in KISSsoft and Autodesk Inventor and made the drawings. Then I worked with the manufacturer, Jacquier & Luisier SA in Valais, to make the design manufacturable. Once they had made the parts, I assembled all four gearboxes: they ran at four competitions across Europe in summer 2026.

  • TeamValais Wallis Racing Team
  • ManufacturingJacquier & Luisier SA
  • 120km/htop speed
  • 403Nmmax torque at the wheel
Read the case study
3D model of the watchmaking machine, with its 6-axis robot, linear axis and 3D laser camera

Final apprenticeship project · Alps Automation

Precision watchmaking machine

I designed a future Alps Automation catalogue machine in 3D: a 6-axis robot, a linear motor and a 3D laser camera on dedicated mechanical supports. Then I made the technical file to assemble and cost it: assembly drawings and parts lists for every sub-assembly, and a 2D drawing for every machined part.

  • 5.9/6.0final grade
  • 100%automated, with robotics
Chirpy, our educational plush parrot

Co-founder · Business Experience HES-SO

Project Chirpy

An educational toy. We turned a technical prototype into a full business case and won the pitch competition.

  • 1stplace at the BeX Evening 2026
  • 6teams in the competition
The micro-compounder at TU Delft, opened to show its twin screws

BSc thesis · TU Delft · EU project OPTIRBLEND

Recycled PP/HDPE blends

Mixed PP/PE waste rarely ends up in load-bearing parts, because sorting it costs too much. I test whether a compatibilizer and the right processing settings make recycled blends stiff, strong and tough enough. In the lab, I compound and injection-mould the blends, then characterize them with tensile tests, DSC, FT-IR, SEM and optical microscopy. The output: processing guidelines for compounders.

  • 5.7/6.0intermediate report grade
  • Dec 2026end of the thesis
CAD model of the Valais Wallis Racing Team 2026 car

Team infrastructure · VRT

CAD server on Autodesk Vault

I set up and ran Autodesk Vault for the mechanical team: one place for every part, with version control.

  • 30+team members using it
  • 2500+CAD files managed

Education

From apprentice to engineer.

  1. BSc in Systems Engineering

    Design & Materials track · HES-SO Valais-Wallis · Sion

    Sep 2023 → Dec 2026

    A broad engineering degree, with a thesis on exchange at TU Delft, Faculty of Aerospace Engineering. Business Experience elective: co-founded Project Chirpy, an educational toy. We turned the prototype into a full business case and won 1st place at the BeX Evening 2026.

  2. Federal VET Diploma (CFC) in Automation & Vocational Baccalaureate

    Campus EPTM · Sion

    Aug 2019 → Aug 2023

    Four-year apprenticeship as an automation technician, with the vocational baccalaureate in parallel. Placements at Bachem, Alro Engineering and Alps Automation.

    Award of Excellence · CFC Award of Excellence · Vocational Baccalaureate

Skills

My toolbox.

  • Autodesk Inventor
  • Autodesk Vault
  • Autodesk Fusion
  • KISSsoft
  • Ansys
  • Ansys Granta EduPack
  • MATLAB
  • Siemens TIA Portal
  • Microsoft Excel
  • Microsoft Word
  • LaTeX
  • Visual Studio Code
  • GitHub
  • Claude Code

Mechanical design

  • Autodesk Inventor · 7 years
  • KISSsoft
  • Ansys Workbench
  • Autodesk Vault
  • Fusion
  • FEA
  • Design for manufacturing

Materials & testing

  • Compounding
  • Injection moulding
  • Tensile testing
  • DSC
  • FT-IR
  • SEM
  • Design of experiments

Automation

  • PLC · TIA Portal, Step 7
  • Wiring
  • Commissioning
  • Sensors
  • ATEX · cGMP

Other tools

  • MATLAB
  • Python
  • Excel
  • LaTeX
  • Granta
  • Claude Code
  • GitHub

Languages

FrenchNative
EnglishC1
GermanB1

Beyond work

What keeps me going.

  • Running a marathon, thumbs up Marathon · 42.2 km
  • Pushing my mountain bike up a scree slope at the Grand Raid BCVS Grand Raid BCVS, mountain bike
  • Portrait of Jean Sébastien in the mountains Up in the mountains

Triathlon

Swim, bike, run: triathlon is how I recharge, and it has taught me to plan months ahead and keep going when it gets hard. I’ve now completed an Ironman 70.3 (1.9 km swim, 90 km bike, 21.1 km run) and a marathon.

Photography & video

I took the photos for the pilgrimage to Lourdes, and I make videos on the side.

Contact

Let’s work together.

Looking for a mechanical engineer? I’m available from June 2027, after my military service.

  • EmailJeanSebastien@llet.ch
  • Based inSwitzerland, open to relocate

References

  • Mathieu Soutrenon · HES-SO Valais-Wallis
  • Baris Çaglar · TU Delft
  • Vincent Grasset · Alps Automation SA

Contact details on request.

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