Front-End, UX/UI and Product Design
assisted by AI systems

I design clear, fast and intelligent digital systems. UX/UI, front-end architecture, design systems and AI-assisted prototyping — turning complex ideas into fluid, human experiences. [Start a project]

Ariane Guay - Développeuse Web & UX/UI

Where design meets engineering

I enjoy creating experiences where technology takes a back seat to clarity and humanity. Structured, analytical and curious, I design interfaces that breathe, adapt and highlight what matters most: the user experience.

Design clear, fast and intelligent digital systems.

Each project is a meeting point between strategy, design and engineering.

Based in Montreal, I collaborate with creative, cultural and technological companies to design sustainable digital systems: design systems, UX/UI, front-end (React/Next.js) and AI integrations.

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Design System & UX Engineering: Structure, Consistency & Scalability

I combine UX, UI, product design, and advanced prototyping to create digital experiences that feel coherent, elegant, and easy to navigate — even when the initial problem is messy.

Key optimized points:

  • End-to-end UX/UI design: interactions, layouts, flows, navigation, clarity.

  • Advanced prototyping (Figma + React + AI): validate ideas quickly, reduce ambiguity, gather feedback within hours.

  • Product thinking: framing, requirements, shaping ideas into usable product features.

  • Pragmatic accessibility: structure, contrast, readability, accessible patterns.

  • Deliverables: mockups, interactive prototypes, micro-interactions, UX/UI guidelines.

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Front-End Architecture & Design Systems: structure, performance, and long-term coherence

I design robust front-end systems: UI architecture, scalable design systems, modular components, and performance-first structures built to grow without breaking.

Key optimized points:

  • UI architecture: component structure, patterns, scalable code organization.

  • Design systems: tokens, reusable components, living documentation, visual guidelines.

  • Refactoring & performance: optimization, debt reduction, improved Lighthouse performance.

  • Front-end implementation: React/Next.js, TypeScript, consistent and high-quality interfaces.

  • Deliverables: design systems, UI libraries, documentation, front-end audits.

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AI & Creative Tech: intelligent prototypes and custom automation

I combine AI, React, Figma, and automation to speed up creation, reduce complexity, and turn early ideas into intelligent tools and prototypes.

Key optimized points:

  • AI prototyping (React + Figma + Assistants): test concepts within hours.

  • Workflow automation: content ops, design ops, internal scripts, process reduction.

  • Custom AI tooling: internal assistants, POCs, specialized tools for teams.

  • AI orchestration: APIs, pipelines, model integration, decision logic.

  • Deliverables: interactive prototypes, AI hooks/tools, usage documentation, internal agents.

Bring Ideas to Life - Banner

Bring your ideas to life

Whether it's a redesign, a new creation, or an artistic collaboration, I transform your ideas into unique digital experiences.

Ask questions about my background

Answers based on my CV, my services and my projects (no access to private data).

Projects where design meets front-end architecture

Each project is a blend of UX design, front-end architecture and system thinking.

I create structured, accessible digital experiences built around strong visual identity.

Hypnotherapie - Juliette Poncsak
Design of a hypnotherapy website — UX/UI + visual identity
Théâtre de Toutetois
Website for the Théâtre de Toutetois theatre company — UX/UI + React & Headless WordPress integration
Refonte plateforme & design system - helloDarwin - Cover
Complete redesign of the helloDarwin website — UX/UI + Design System + React/Gatsby
Le Legs - Capture d'écrans
Le Legs — Immersive 3D online installation on Indigenous memory
Re|Search Exhibition - Online Exhibition Montreal - Laboratoire NT2
Re|Search Exhibition — Interactive Search (NT2) — React + headless CMS + front-end architecture
Projet Bureaux Écrans - Screenshot
Bureaux Écrans: An exhibition on writers' offices