About

quentin gillon

I’m a Lead Product Designer, and I’ve mostly worked on complex B2B products in the energy space, both in scale-ups and large companies.

I’ve spent a lot of time on platforms and design systems, working closely with product and engineering to structure, clarify, and evolve sustainable systems.

My four pillars

Over time, I’ve identified a few principles that guide me.
These four pillars sum up how I approach projects and teamwork.

1. Setting direction

I align design, product, and engineering around a shared goal

I step in and make the call when debates drag on and slow things down

I clarify the product direction when the vision is still blurry

I help teams grow and become more autonomous

2. Designing for engineering

I make design and engineering speak the same language

I surface constraints early

I make decisions and trade-offs explicit

I reduce back-and-forth and friction

3. Delivering over time

I shorten time to production

I keep quality stable over time

I make delivery reliable and predictable

I support growth without losing control

4. Owning complexity

I take on messy, sensitive, or less desirable topics

I clarify products with high business or functional complexity

I make critical but low-visibility tools usable

I never sacrifice usability for visuals — or the other way around

1. Setting direction

I align design, product, and engineering around a shared goal

I step in and make the call when debates drag on and slow things down

I clarify the product direction when the vision is still blurry

I help teams grow and become more autonomous

2. Designing for engineering

I make design and engineering speak the same language

I surface constraints early

I make decisions and trade-offs explicit

I reduce back-and-forth and friction

3. Delivering over time

I shorten time to production

I keep quality stable over time

I make delivery reliable and predictable

I support growth without losing control

4. Owning complexity

I take on messy, sensitive, or less desirable topics

I clarify products with high business or functional complexity

I make critical but low-visibility tools usable

I never sacrifice usability for visuals — or the other way around

1. Setting direction

I align design, product, and engineering around a shared goal

I step in and make the call when debates drag on and slow things down

I clarify the product direction when the vision is still blurry

I help teams grow and become more autonomous

2. Designing for engineering

I make design and engineering speak the same language

I surface constraints early

I make decisions and trade-offs explicit

I reduce back-and-forth and friction

3. Delivering over time

I shorten time to production

I keep quality stable over time

I make delivery reliable and predictable

I support growth without losing control

4. Owning complexity

I take on messy, sensitive, or less desirable topics

I clarify products with high business or functional complexity

I make critical but low-visibility tools usable

I never sacrifice usability for visuals — or the other way around

My background

My career has been shaped through complex products and growing responsibilities.

Over time, it naturally led me toward a role focused on structure, alignment, and product leadership, working closely with teams.

Lead product designer

2022 - 2025

Enphase Energy

Large company

Lead product designer

2022 - 2025

Enphase Energy

Large company

Lead product designer

2022 - 2025

Enphase Energy

Large company

Lead product designer

2018 - 2022

Greencom Networks

Scale-up

Lead product designer

2018 - 2022

Greencom Networks

Scale-up

Lead product designer

2018 - 2022

Greencom Networks

Scale-up

senior UX designer

2015 - 2018

Greencom Networks

Scale-up

senior UX designer

2015 - 2018

Greencom Networks

Scale-up

senior UX designer

2015 - 2018

Greencom Networks

Scale-up

co-founder

2012 - 2015

Dilengo

Startup

co-founder

2012 - 2015

Dilengo

Startup

co-founder

2012 - 2015

Dilengo

Startup

My work stack

When it comes to tools, I don’t have a fixed stack. I choose them based on the context, the team, and the product’s level of maturity.

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Design Systems

Scalable, maintainable design systems.

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Design Systems

Scalable, maintainable design systems.

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Architecture & Prototyping

Structuring and prototyping to test and make decisions.

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Architecture & Prototyping

Structuring and prototyping to test and make decisions.

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Design ↔ Front-end

Interfaces designed for real-world implementation.

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Design ↔ Front-end

Interfaces designed for real-world implementation.

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Documentation

Clear, actionable documentation for teams.

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Documentation

Clear, actionable documentation for teams.

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Delivery & gestion de projet

Driving product projects in close collaboration with design and engineering.

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Delivery & gestion de projet

Driving product projects in close collaboration with design and engineering.

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Mentoring & design critique

Design critique and hands-on support for designers.

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Mentoring & design critique

Design critique and hands-on support for designers.

About Me Image - 4
About Me Image - 4
Portrait of portfolio creator
Portrait of portfolio creator
Portrait of portfolio creator

Hi

Hi

Hi

Let's Talk

If this resonates with your challenges or your context, we can talk about it. I enjoy discussing products and teams — especially when things get a bit complex.