# Jérémie Gisserot — Freelance Product Engineer ## About Jérémie Gisserot is a freelance Product Engineer based in Rennes, France, with 20 years of experience. He designs and builds impactful digital products for public services and the social economy (ESS). He joins product teams on long-term missions covering UX research, design, frontend development, and AI workflows. ## Core expertise - Accessibility & Design Systems: WCAG, RGAA, DSFR, design tokens, inclusive interfaces, accessibility audits - Product Engineering: React, Next.js, TypeScript, UX research, frontend architecture - AI & LLM Workflows: agentic AI pipelines, Letta, n8n, LangChain, editorial automation - Public services: French government platforms (DSFR, Beta.gouv), multi-language products ## Main pages - Homepage (FR): https://jeremie-gisserot.net/ - Homepage (EN): https://jeremie-gisserot.net/en - About (FR): https://jeremie-gisserot.net/about - About (EN): https://jeremie-gisserot.net/en/about - Blog (FR): https://jeremie-gisserot.net/blog - Blog (EN): https://jeremie-gisserot.net/en/blog - RSS Feed (FR): https://jeremie-gisserot.net/feed.xml - RSS Feed (EN): https://jeremie-gisserot.net/en/feed.xml ## Content clusters ### Accessibility & Design Systems Articles about WCAG, RGAA, DSFR, design tokens and building accessible design systems - FR: https://jeremie-gisserot.net/accessibilite-dsfr-produits-publics (3 articles) - EN: https://jeremie-gisserot.net/en/accessibility-design-systems (2 articles) Recent articles: - Câbler un LLM à un design system sans hallucination (2026-03-11) FR: https://jeremie-gisserot.net/accessibilite-dsfr-produits-publics/design-system-llm-sans-hallucinations FR (Markdown): https://jeremie-gisserot.net/accessibilite-dsfr-produits-publics/design-system-llm-sans-hallucinations.md - Réfugiés.info : DSFR, RGAA et amélioration continue (2024-12-20) FR: https://jeremie-gisserot.net/accessibilite-dsfr-produits-publics/refugies-info-accessibility-dsfr FR (Markdown): https://jeremie-gisserot.net/accessibilite-dsfr-produits-publics/refugies-info-accessibility-dsfr.md - Tester l’accessibilité d’un service public sans CSS (2024-11-01) FR: https://jeremie-gisserot.net/accessibilite-dsfr-produits-publics/accessibilite-desactiver-css-guide FR (Markdown): https://jeremie-gisserot.net/accessibilite-dsfr-produits-publics/accessibilite-desactiver-css-guide.md - French State Design System: Accessibility Case Study (2024-12-20) EN: https://jeremie-gisserot.net/en/accessibility-design-systems/refugies-info-dsfr-accessibility-case-study EN (Markdown): https://jeremie-gisserot.net/en/accessibility-design-systems/refugies-info-dsfr-accessibility-case-study.md - How to Disable CSS: Accessibility Testing Guide with React Hook (2024-11-01) EN: https://jeremie-gisserot.net/en/accessibility-design-systems/accessibility-disable-css-guide EN (Markdown): https://jeremie-gisserot.net/en/accessibility-design-systems/accessibility-disable-css-guide.md ### Case Studies & Project Retrospectives In-depth looks at real projects and their outcomes - FR: https://jeremie-gisserot.net/case-studies (3 articles) - EN: https://jeremie-gisserot.net/en/case-studies (3 articles) Recent articles: - Réfugiés.info : faire évoluer une plateforme gouvernementale (2024-12-15) FR: https://jeremie-gisserot.net/case-studies/refugies-fr FR (Markdown): https://jeremie-gisserot.net/case-studies/refugies-fr.md - StadiumGO : design system pour le covoiturage événementiel (2024-12-08) FR: https://jeremie-gisserot.net/case-studies/stadiumgo FR (Markdown): https://jeremie-gisserot.net/case-studies/stadiumgo.md - Gérer un portefeuille de 100+ sites web en agence (2024-12-01) FR: https://jeremie-gisserot.net/case-studies/pamplemousse FR (Markdown): https://jeremie-gisserot.net/case-studies/pamplemousse.md - Managing a Portfolio of 100+ Agency Websites (2024-12-01) EN: https://jeremie-gisserot.net/en/case-studies/pamplemousse-en EN (Markdown): https://jeremie-gisserot.net/en/case-studies/pamplemousse-en.md - StadiumGO: Building a Design System from Scratch (2024-12-08) EN: https://jeremie-gisserot.net/en/case-studies/stadiumgo-en EN (Markdown): https://jeremie-gisserot.net/en/case-studies/stadiumgo-en.md ### Personal AI Agent Building and living with a personal AI agent: from setup to what it changes day to day. - FR: https://jeremie-gisserot.net/agent-ia-personnel (5 articles) - EN: https://jeremie-gisserot.net/en/personal-ai-agent (4 articles) Recent articles: - Agent IA personnel pour freelances : gadget ou superpouvoir ? (2026-08-18) FR: https://jeremie-gisserot.net/agent-ia-personnel/agent-ia-personnel-freelances FR (Markdown): https://jeremie-gisserot.net/agent-ia-personnel/agent-ia-personnel-freelances.md - Agent IA personnel : bilan honnête après 2 mois (2026-05-03) FR: https://jeremie-gisserot.net/agent-ia-personnel/bilan-agent-ia-personnel FR (Markdown): https://jeremie-gisserot.net/agent-ia-personnel/bilan-agent-ia-personnel.md EN: https://jeremie-gisserot.net/en/personal-ai-agent/personal-ai-agent-review EN (Markdown): https://jeremie-gisserot.net/en/personal-ai-agent/personal-ai-agent-review.md - Vivre avec un agent IA personnel au quotidien (2026-05-03) FR: https://jeremie-gisserot.net/agent-ia-personnel/vivre-avec-son-agent-ia-personnel FR (Markdown): https://jeremie-gisserot.net/agent-ia-personnel/vivre-avec-son-agent-ia-personnel.md EN: https://jeremie-gisserot.net/en/personal-ai-agent/living-with-personal-ai-agent EN (Markdown): https://jeremie-gisserot.net/en/personal-ai-agent/living-with-personal-ai-agent.md ### AI and Parenting How AI is changing parenting: from building a private tutor for your kid to the ethical questions parents face. - FR: https://jeremie-gisserot.net/ia-parentalite (1 articles) - EN: https://jeremie-gisserot.net/en/ai-parenting (1 articles) Recent articles: - J'ai construit un prof particulier IA pour ma fille (2026-03-30) FR: https://jeremie-gisserot.net/ia-parentalite/prof-ia-pour-ma-fille-suki-letta FR (Markdown): https://jeremie-gisserot.net/ia-parentalite/prof-ia-pour-ma-fille-suki-letta.md EN: https://jeremie-gisserot.net/en/ai-parenting/ai-tutor-daughter-suki-letta EN (Markdown): https://jeremie-gisserot.net/en/ai-parenting/ai-tutor-daughter-suki-letta.md ## Services - Services (FR): https://jeremie-gisserot.net/services.md - Services (EN): https://jeremie-gisserot.net/en/services.md ## Social profiles - GitHub: https://github.com/ledjay - LinkedIn: https://www.linkedin.com/in/jeremiegisserot/ - Bluesky: https://bsky.app/profile/ledjay.bsky.social - Newsletter (Hyperfocus): https://hyperfocusmode.substack.com ## Contact - Email: j@jeremie-gisserot.net - Book a call: https://cal.com/jeremie-g/30min