Hi, I'm Seb 🖐
CX Freelancer

I worked at Google as Web & UX expert. And now I propose my help to grow your business, with Google-quality consulting 👌

How I can help you

Invent a new product

Invent a new product

As a CEO of a startup or new business line, you want to launch a digital product that will fit your customer needs, and engage your team in a collaborative process

I will help you organize a Design Sprint, based on Google Ventures methodology

I will help you frame the challenge & outputs, and be the facilitator of the sprint

I will prototype the ideas that came out, test them with real users, and improve your final products based on their feedbacks
Grow your revenue

Grow your revenue

As a PM or Marketer of an existing website or app, you want to grow your revenue and make your product more user-centric

I will audit your site or app using Conversion Rate Optimisation (CRO) methodogies

I will present you the most relevant opportunities to grow your revenue, and reach your business objectives (UX, WebPerf, PWA, innovative tech...)

I will help you implement those changes and measure the business impact it generated
Transform your teams

Transform your teams

As a CDO or CPO of a medium or large company, you want to transform your organisation to build digital products like tech leaders do

I will interview your teams and produce a diagnostic of your digital maturity

I will present you the biggest opportunities with associated business impact (agile, mobile-first, user-centrism...)

I will help you implement those cultural changes and measure the relevant KPIs
Starter Pack

Not sure where to start?

Begin with my Starter Pack, an advanced audit of your top user journeys with actionable reco to boost your conversions!

Buy now
2H Coaching

Need something fast and efficient?

I offer a 2 hours coaching session, aimed at producing together 1 concrete deliverable to improve your conversions!

Book now

My areas of expertise

User Experience

User Research

Design Sprint

UX Audit

AB Testing

Motion Design



Webperf Audit


SPA Frameworks


Web Development

Web Stories


Conversion Rate Optimisation


Product Management

BI Dashboard

Digital Strategy

Product Culture



Clients I worked with

Examples of my work

  • All
  • Case Study
  • Webinar
  • Benchmark

Case Study

Louvre Hotels Group made +30% conversions thanks to User Research and AB Testing

Case Study

Weekendesk increased by 2,5 their conversion thanks to PWA

Case Study

Verychic made +9% mobile revenue thanks to WebPerf improvements


UX Research webinar explains why it's important and the strategies to adopt


Finance UX Benchmark shows the best acquisition journey of bank, insurance and credit players


PWA webinar explains this technology and the benefits for your mobile user experience


People I loved working with

Sébastien integrated smoothly in our teams, and delivered our redesign "end-to-end": from strategic reco, to design, development and measurement of conversion uplift.


Nora Gonzalez

Head of Enterprise Marketing, Sendinblue

I enjoyed collaborating with Sébastien to build better, faster and more performant web assets, and I'd strongly recommend his professionalism.


François Beraldi

Chief Digital Officer, SFR

Sébastien's finance benchmark study enabled us to improve our customer experience, lowering bounce rates and improving revenue per user.


Raphaël Gilmas

CMO, LeLynx

Sébastien contributed in growing our products' business metrics, helping us adopt innovative technologies and user research methodologies.

Pierre Henry

Pierre-Henry Boutet

CPO, Digital Virgo

Sébastien has a strong ownership, once he has been introduced to a client, he is very clear about the next steps, defines a roadmap and makes the project move forward!


Charlotte Rochfeld

Industry Manager, Google

Problem-solver and innovator by nature, Sébastien always challenges the norm and tries new methods. He tests, adapts, and iterates to improve his impact.


Loïc de Saint Andrieu

Head of Digital Customer Experience, Google

Sébastien demonstrates great polyvalence, he is able to advise decision-makers with a high-level narrative as well as going into technical details with practitioners.


Stanislas Chavanat

Finance Industry Head, Google

Some articles I wrote

Banque, assurance, crédit : les meilleurs parcours d'acquisition 2021

Read The Article

How PWA will help you drive business impact!

Read The Article

The ultimate guide to designing a chatbot tech stack

Read The Article

Contact Me


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