Julien Deveaux, Designer in Paris, France
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Julien Deveaux

Verified Expert  in Design


Paris, France
Toptal Member Since
November 1, 2018

With eight years of experience in the tech industry, working for startups and large corporation alike in Europe, South America, and the US, Julien helps his clients from the inception of a product all the way to the release. He specializes in strategy, interaction design, and product design. Julien is a full-stack UX specialist who loves collaborating on complex projects and bringing life to creative solutions.


Work Experience

UX and Design Mentor

2014 - PRESENT
  • Mentored design student during an online class.
  • Managed student process throughout the course.
  • Led design critics.
  • Provided personalized teaching during 1:1 session.
  • Supervised students' projects.
  • Coached students through their career changes and career search topics.
Technologies: Adobe Illustrator, Adobe Photoshop, Zeplin, InVision, Sketch, UX Design, UI Design, Interaction Design (IxD), User Research

Digital Product Designer

2014 - PRESENT
  • Worked with startups and young companies to define and design their product from the ground up.
  • Led workshops with multi-disciplinary teams.
  • Led design and development teams.
  • Met with clients and users in person and via Skype for demos and usability testing.
  • Working remotely or in-house.
Technologies: Adobe Illustrator, Adobe Photoshop, Xcode, Marvel, InVision, React, Sketch

Product Designer

2015 - 2016
  • Overhauled the 4-year-old Agorize platform, a participative innovation solution for the biggest companies worldwide.
  • Helped the founders to formalize their product vision.
  • Handled the user research.
  • Defined and prioritized the product features.
  • Built the product architecture.
  • Created the wireframes and UI design for the entire platform.
  • Supervised the 7-person product development team on a daily basis.
Technologies: Adobe Photoshop, InVision, Ruby on Rails (RoR), Sketch

Co-found, CPO and UX/UI Lead

2012 - 2014
  • Created cottonTracks, the only browser history you will ever want to keep. It organizes the best of what you have seen online automatically in a smart and visual way.
  • Accelerated by Start-Up Chile for 6 months and raised $100,000+.
  • Reached 100,000+ downloads (covered by Cnet, Lifehacker, and TNW).
  • Built the product architecture.
  • Led our team for product usability and design.
Technologies: Adobe Illustrator, Front-end, JavaScript, Adobe Photoshop, Sketch
2011 - 2012

Master's Degree in Digital Business Management

HEC Paris - Paris, France

2008 - 2011

Master of Science Degree in Computer Science

Telecom ParisTech - Paris, France


Sketch, Marvel App, Marvel, InVision, Adobe Photoshop, Adobe Illustrator, GitHub, Git, Framer Prototyping, Zeplin, Hotjar, Net Promoter Score (NPS), UX Tools, Origami Studio, Xcode, Adobe InDesign, Adobe Experience Design (XD), InVision Studio


CSS3, HTML5, CSS, HTML, JavaScript


MacOS, iOS, Android, Windows Phone

Industry Expertise

Restaurants & Dining, Architecture, Sports


Business Strategy, Interactive Web Design, Interactive Design, Interactive UX, Interactive UI, User Interviews, Interviews, Tree Testing, Card Sorting, Information Design, App UX, UX Mentoring, Hiring, Human-machine Interface (HMI), Design Thinking, Atomic Design, Design Systems, Typography, Web App UX, App UI, Design, CSS Grid, Responsive Coding, Responsive Layout, Remote Work, Responsive UX Design, Responsive UI, Responsive Design, Mobile UI, WebApp, User Flows, Information Architecture (IA), Strategy, Usability Testing, Interaction Design (IxD), Icon Design, Iconography, UI Design, UX Design, Product Design, User Interface (UI), User Experience (UX), B2B2C, B2B, B2C, Mobile Apps, Website Redesign, UIKit, Business to Business to Consumer (B2B2C), Google Design Sprints, User Research, Teaching, Team Mentoring, Visual Design, Email Coding, Email Design, Responsive Email Templates, Responsive Frameworks, Branding, Gatsby, Product Management, Front-end, User Testing, Lean Startups, Platform Design, Data, Complex Web Systems, UX Strategy, SaaS Monitoring, Responsive, Conversion-driven UX, Startups, Browser Plugins, Fundraising, Artificial Intelligence (AI), Chrome Extensions, Safari Extensions, Value Proposition Design, Animation, Presentation Design, Press Releases, iPad, Online Ordering, Menu Design, Admin Panels, Minimalism, Wireframing, Prototyping, Mobile UX, Matching Systems, UX Architecture, User Onboarding, Search, Chatbots, Task Flows, Web UI, Scrum, Agile, Web UX, Agile UX, Lean UX, SaaS Design, SaaS, University Teaching, React Redux, React Native, Ruby on Rails (RoR), React, Design Ops, Platform as a Service (PaaS)

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