Senior Product Designer · Product BuilderAnnecy, remote across Europe14 years in product design

I turn business complexity into products that are clear, tested and delivered.

User research, framing, design and functional prototypes, through to developer handover. When the project calls for it, I deliver a React prototype aligned with your design system, to test the flows and prepare development.

  • User research
  • Product framing
  • Information architecture
  • UX/UI design
  • User testing
  • React prototyping
  • Handover to developers

Work

Other projects

2019 · Renault

Pilotage Web

Reopening a 1998 business application to the people who had given up on it.

The tested profiles, including those who avoided the tool, ran the query without help.

2019 · Thales Digital Academy

Large-scale user research

Understanding how the group's employees learn, to ground a new training strategy.

36 interviews across 7 countries · 1,209 respondents · 6 personas

2022 · Renault Digital

Digital Key

Design of the digital key and its integration into the My Renault app.

8 usability tests on an interactive prototype

2014 · Continental Automotive

Future Small Interior

An experience vision for Toyota's urban segment, through to the HMI of a full-scale cockpit.

Tender won on the strength of the concept

Continental Automotive

Holistic Connectivity Car

Led the experience and cockpit design of a connected-services prototype.

Car HMI Awards 2016, 2nd place · shown at CES 2018

Continental Automotive

Roadlog

Redesign of the application tracking truck drivers' schedules and tasks.

Launched, market leader in its segment

Products in production

Two ways to work together

Product discovery and design

Within an agreed scope: understand how people work, define priorities with your team, design and test the flows, then deliver a functional prototype your developers can build on.

A product designer on your team

Working within your product team, I take responsibility for research, user flows, interface design and testing. I work with the PM and developers from discovery through iteration, using a functional prototype when the project calls for one.

What teams say

“prototypes of high visual and technical quality, with a "dev-ready" level of finish”
Anthony Charon · Lead Product Manager · international retail group · 2026 · Translated from French
“Deliverables that are easy to work with, even after you have left.”
Morgane Leluc · Lead UX · La Poste · 2026
“A great capacity to solve complex problems, to anticipate user needs, and to work with multidisciplinary teams.”
Pascal Zylberstejn · Manager at Renault · 2024

Read the originals, in French, on LinkedIn ↗

Vianney Bertrand

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