Product Design

Product Design

Remarkable user experiences, designed to adapt to business complexity and industrialize without compromising on detail.

Remarkable user experiences, designed to adapt to business complexity and industrialize without compromising on detail.

Product Design is a demanding discipline: it's about transforming complex business challenges into fluid, intuitive and useful experiences. Our designers create interfaces that facilitate decision-making, action and adoption, even in B2B, regulated or highly technical contexts.

To achieve this, we combine methodological rigor, rapid AI exploration and a keen sense of craft. From functional scoping to pixel-perfect delivery, every step is designed to fit into robust product and technological environments, with particular attention to maintainability, scalability and quality of execution.

Cas clients

Shaping demanding products at the crossroads of business, marketing and user needs.

Cas clients

Shaping demanding products at the crossroads of business, marketing and user needs.

Cas clients

Shaping demanding products at the crossroads of business, marketing and user needs.

Cas clients

Shaping demanding products at the crossroads of business, marketing and user needs.

As Europe’s leading cinema chain, Pathé Cinémas has embarked on a digital transformation to streamline its ecosystem, unify its visual identity across Europe, and boost platform performance. Since 2020, we've been progressively helping turn its discovery-driven website into a true e-commerce channel. From redesigning booking journeys and streamlining the design system to industrializing interfaces and continuously optimizing the purchase funnel — every lever was activated to align business goals with UX, increase conversions, and accelerate digital sales.

As Europe’s leading cinema chain, Pathé Cinémas has embarked on a digital transformation to streamline its ecosystem, unify its visual identity across Europe, and boost platform performance. Since 2020, we've been progressively helping turn its discovery-driven website into a true e-commerce channel. From redesigning booking journeys and streamlining the design system to industrializing interfaces and continuously optimizing the purchase funnel — every lever was activated to align business goals with UX, increase conversions, and accelerate digital sales.

Since 2020, we've been working with Pathé Cinémas teams to produce all the ecosystem's interfaces, right down to the front-end code.

Key benefits

Improve the quality of your interfaces

We design products that are clear, coherent and elegant down to the smallest detail, with a high level of craft and constant attention to the user experience.

Improve the quality of your interfaces

Improve the quality of your interfaces

We design products that are clear, coherent and elegant down to the smallest detail, with a high level of craft and constant attention to the user experience.

Improve the quality of your interfaces

We design products that are clear, coherent and elegant down to the smallest detail, with a high level of craft and constant attention to the user experience.

Align UX and business challenges

Align UX and business challenges

Align UX and business challenges

Align UX and business challenges

Industrialize your deliverables

Industrialize your deliverables

Industrialize your deliverables

Industrialize your deliverables

Ledger Stax: designing the software experience of a new device from scratch

How to imagine and design, from a blank page, the software experience of a totally new physical device: the Ledger Stax, a credit-card-sized crypto wallet equipped with a curved e-ink screen.As the product itself was still being designed, we didn't have access to the final prototype. So we had to anticipate, be creative and clever... and defend our convictions.

3 Ledger Stax devices seen from different angles
3 Ledger Stax devices seen from different angles
3 Ledger Stax devices seen from different angles

Devialet: Mobile interfaces for audio excellence

Since 2024, we've been working closely with Devialet's executive teams to develop companion mobile apps.
The challenge: to strengthen business performance while cultivating the brand's excellence and uniqueness.

Devialet Phantom speaker placed in a living room
Devialet Phantom speaker placed in a living room
Devialet Phantom speaker placed in a living room

Aircall: a new mobile experience for corporate telephony

We helped Aircall redesign its mobile application for sales and customer support teams. The challenge: unify calls and messages within a single conversational interface, while respecting native iOS and Android features. A demanding partnership, hand-in-hand with the product and tech teams of a leading SaaS player.

Telephone advisor with software interface elements of Aircall
Telephone advisor with software interface elements of Aircall
Telephone advisor with software interface elements of Aircall
Our approach
Our approach

01

Explore & analyze performance

We clarify issues by combining UX audit and CRO analysis, to identify high-impact opportunities and lay solid foundations aligned with business objectives.

02

Prototype & test

We turn ideas into interactive mock-ups and prototypes. These deliverables are rapidly tested to validate usage, refine paths and align stakeholders.

03

Deliver & industrialize

We produce the final interfaces with a high level of craftsmanship, working closely with the tech teams. Every detail is designed to be reliable, reusable and ready for deployment.

Work with Source.paris

Our designers combine strategic consulting and operational expertise, to support your teams at the right level and at the right pace.

Work with Source.paris

Our designers combine strategic consulting and operational expertise, to support your teams at the right level and at the right pace.

Work with Source.paris

Our designers combine strategic consulting and operational expertise, to support your teams at the right level and at the right pace.

Work with Source.paris

Our designers combine strategic consulting and operational expertise, to support your teams at the right level and at the right pace.

Expert selection
Expert selection
Portrait of Jules Bassoleil

Jules Bassoleil

Founder & Lead Designer

Portrait of Jules Bassoleil

Jules Bassoleil

Founder & Lead Designer

Portrait of Jules Bassoleil

Jules Bassoleil

Founder & Lead Designer

Portrait of Jules Bassoleil

Jules Bassoleil

Founder & Lead Designer

Portrait of Cédric Marteau

Cédric Marteau

Design Director

Portrait of Cédric Marteau

Cédric Marteau

Design Director

Portrait of Cédric Marteau

Cédric Marteau

Design Director

Portrait of Cédric Marteau

Cédric Marteau

Design Director

Portrait of Maxime Frere

Maxime Frere

Principal Designer

Portrait of Maxime Frere

Maxime Frere

Principal Designer

Portrait of Maxime Frere

Maxime Frere

Principal Designer

Portrait of Maxime Frere

Maxime Frere

Principal Designer

Eléonore Rident

Senior Designer

Eléonore Rident

Senior Designer

Eléonore Rident

Senior Designer

Eléonore Rident

Senior Designer

Our commitments

01

A strategy with tools, not theory

Our recommendations are always based on concrete deliverables (mock-ups, prototypes, visual roadmaps) designed to facilitate decision-making at every stage.

02

From idea to clarity, faster, powered by AI

We integrate AI tools to accelerate research, generate initial concept leads, and feed strategic thinking from the earliest stages of a project.

03

High-fidelity prototypes in a few days

We produce animated or interactive demonstrators at an early stage to engage stakeholders, reduce ambiguity and secure your product decisions.

04

A comprehensive, responsible team

No middleman. Designers, AI specialists, devs: you have access to a dedicated team, autonomous and responsible from start to finish.

05

Adaptable to your context

Short-term assignments or long-term support, with in-house teams or external partners: our model adapts to your organization.

Our commitments

01

A strategy with tools, not theory

Our recommendations are always based on concrete deliverables (mock-ups, prototypes, visual roadmaps) designed to facilitate decision-making at every stage.

02

From idea to clarity, faster, powered by AI

We integrate AI tools to accelerate research, generate initial concept leads, and feed strategic thinking from the earliest stages of a project.

03

High-fidelity prototypes in a few days

We produce animated or interactive demonstrators at an early stage to engage stakeholders, reduce ambiguity and secure your product decisions.

04

A comprehensive, responsible team

No middleman. Designers, AI specialists, devs: you have access to a dedicated team, autonomous and responsible from start to finish.

05

Adaptable to your context

Short-term assignments or long-term support, with in-house teams or external partners: our model adapts to your organization.

Our commitments

01

A strategy with tools, not theory

Our recommendations are always based on concrete deliverables (mock-ups, prototypes, visual roadmaps) designed to facilitate decision-making at every stage.

02

From idea to clarity, faster, powered by AI

We integrate AI tools to accelerate research, generate initial concept leads, and feed strategic thinking from the earliest stages of a project.

03

High-fidelity prototypes in a few days

We produce animated or interactive demonstrators at an early stage to engage stakeholders, reduce ambiguity and secure your product decisions.

04

A comprehensive, responsible team

No middleman. Designers, AI specialists, devs: you have access to a dedicated team, autonomous and responsible from start to finish.

05

Adaptable to your context

Short-term assignments or long-term support, with in-house teams or external partners: our model adapts to your organization.

Our commitments

01

A strategy with tools, not theory

Our recommendations are always based on concrete deliverables (mock-ups, prototypes, visual roadmaps) designed to facilitate decision-making at every stage.

02

From idea to clarity, faster, powered by AI

We integrate AI tools to accelerate research, generate initial concept leads, and feed strategic thinking from the earliest stages of a project.

03

High-fidelity prototypes in a few days

We produce animated or interactive demonstrators at an early stage to engage stakeholders, reduce ambiguity and secure your product decisions.

04

A comprehensive, responsible team

No middleman. Designers, AI specialists, devs: you have access to a dedicated team, autonomous and responsible from start to finish.

05

Adaptable to your context

Short-term assignments or long-term support, with in-house teams or external partners: our model adapts to your organization.

They trust us
They trust us

"Source showed strong commitment, great motivation, quality of deliverables, creativity, methods, great flexibility in the face of very tight deadlines, sometimes with last-minute requests. I didn't feel I was working with a supplier, but with a true partner."

Remi d'Alise

Lead Product, Hardware Wallets

Capacités

Design

User research

CRO audit

UX audit

Formalizing the challenges

Concepts

Tailored experience design

Interactive prototypes

User testing & rapid iteration

Token-based design systems

Tech

Shopify Plus certification

Senior technical consulting

Technical architecture

Front-end dev & micro-interactions

UI component library

No-code/low-code support

IA

Lovable Prototype

Bolt Prototype

Process automation

AI integration into workflows

AI generative integration consulting

Capacités

Design

User research

CRO audit

UX audit

Formalizing the challenges

Concepts

Tailored experience design

Interactive prototypes

User testing & rapid iteration

Token-based design systems

Tech

Shopify Plus certification

Senior technical consulting

Technical architecture

Front-end dev & micro-interactions

UI component library

No-code/low-code support

IA

Lovable Prototype

Bolt Prototype

Process automation

AI integration into workflows

AI generative integration consulting

Capacités

Design

User research

CRO audit

UX audit

Formalizing the challenges

Concepts

Tailored experience design

Interactive prototypes

User testing & rapid iteration

Token-based design systems

Tech

Shopify Plus certification

Senior technical consulting

Technical architecture

Front-end dev & micro-interactions

UI component library

No-code/low-code support

IA

Lovable Prototype

Bolt Prototype

Process automation

AI integration into workflows

AI generative integration consulting

Capacités

Design

User research

CRO audit

UX audit

Formalizing the challenges

Concepts

Tailored experience design

Interactive prototypes

User testing & rapid iteration

Token-based design systems

Tech

Shopify Plus certification

Senior technical consulting

Technical architecture

Front-end dev & micro-interactions

UI component library

No-code/low-code support

IA

Lovable Prototype

Bolt Prototype

Process automation

AI integration into workflows

AI generative integration consulting

Got a project in mind?

Talk to an expert for 30 minutes.

Portrait de Cédric Marteau
Portrait de Maxime Frere
portrait de Jules Bassoleil

We’ll get back to you shortly.

Got a project in mind?

Talk to an expert for 30 minutes.

Portrait de Cédric Marteau
Portrait de Maxime Frere
portrait de Jules Bassoleil

We’ll get back to you shortly.

Got a project in mind?

Talk to an expert for 30 minutes.

Portrait de Cédric Marteau
Portrait de Maxime Frere
portrait de Jules Bassoleil

We’ll get back to you shortly.

Got a project in mind?

Talk to an expert for 30 minutes.

Portrait de Cédric Marteau
Portrait de Maxime Frere
portrait de Jules Bassoleil

We’ll get back to you shortly.