Justin MASSIOT

Electronics & industrialisation expert ·   Paris area, France   ·   Contact me

I'm an electronics engineer with more than 10 years of experience in complex R&D projects for high volume products (100,000+ units per year) involving board design, industrialisation and firmware development for MCU & FPGA.

In 2019 I have created my company, Zentek, to support you in designing your high-tech products.

My main skills:
  • Mastering the design and production process of complex electronic boards
  • Expert & trainer on Altium Designer (CAD software)
  • Deep experience of the C and VHDL programming languages
  • Leader of a team of technical experts

Experience

Electronics & industrialisation expert, CEO

Zentek • Paris, France

Design and prototyping of complex, smart and communicating electronic systems.
Consulting and technical expertise for the development and industrialization of electronic products.

2019 - Present

Hardware & Firmware Engineer

Devialet • Paris, France

Hardware design & prototyping
Low-level software development for microcontrollers
Certification support (electrical safety and EMC)
Industrialization support (DFM & DFT)
Contribution to the production ramp-up
Follow-up of the product lifecycle (cost reduction, customer support, ...)

More on the Phantom Reactor project

2017 - 2019

Firmware Engineer

Watt & Well • Massy, France

Embedded software development (C language on DSP)
  → Charger for electric vehicles (CHAdeMO and Combo CCS standards)
FPGA development (VHDL for ProASIC and Igloo targets)
  → Power converter for harsh environments, step-down from 100V-750V to 24V under 150°C ambient temperature

More on the EV charger project

2015 - 2017

Hardware Engineer

SEFI, DEF group • Massy, France

Design of electronic boards for fire detection systems

2012 - 2014

FPGA Engineer

Elsys Design • Cachan, France
2012

Accomplishments

Phantom Reactor  •  WiFi/Bluetooth speaker

Phantom Reactor is a compact wireless speaker, probably the most impressive one on the market.

As an electronic Engineer, I designed two of the four boards embedded in this product. I was in charge of the power delivery, which means peak power concerns and system responsiveness (custom control algorithm).
Because of the small form factor, the mechanical integration was a real challenge.

Ultra-fast EV charger  •  400V, 150kW

Next generation of quick DC charger, to fill-up in less than 20 minutes.

This project consisted in the implementation in C language of the vehicle-infrastructure communication protocols specified by the CHAdeMO and Combo (CCS) standards. In addition to the development I contributed to a large integration and tests campaign on real vehicles, particularly on Nissan Leaf and VW e-Golf.

Quick DC charger

Contact

Want to hire me or talk about your project?
Leave me a message through the contact form of our website zentek.fr.

Or you can reach me on LinkedIn.