
Matteo Leclercq developed and maintained the betagouv/agir-front repository, delivering a wide range of user-facing features and technical improvements over twelve months. He built onboarding flows, personalized action catalogs, and robust KYC processes, focusing on accessibility, performance, and maintainability. Matteo applied Vue.js, TypeScript, and modern CSS to implement modular component architectures, state management, and dynamic UI enhancements. His work included refactoring legacy code, integrating API-driven data, and automating release management, which improved reliability and developer efficiency. By addressing both user experience and technical debt, Matteo ensured the frontend remained scalable, accessible, and aligned with evolving business and user needs.

October 2025 — Delivered two key frontend enhancements for betagouv/agir-front: (1) Codebase cleanup and refactoring to remove unused components/assets, reorganize utilities, and update imports (documentation added). (2) Personalization upgrade with a tag-based filtering UI and integration of FiltrePersonnalisation into PagePersonnalisation; fixed multi-value thematique handling to ensure correct encoding of multi-value filters. These changes reduce technical debt, improve maintainability, and provide a more reliable and user-friendly personalization experience. Demonstrated skills: frontend refactoring, UI integration, filter logic correctness, and documentation updates.
October 2025 — Delivered two key frontend enhancements for betagouv/agir-front: (1) Codebase cleanup and refactoring to remove unused components/assets, reorganize utilities, and update imports (documentation added). (2) Personalization upgrade with a tag-based filtering UI and integration of FiltrePersonnalisation into PagePersonnalisation; fixed multi-value thematique handling to ensure correct encoding of multi-value filters. These changes reduce technical debt, improve maintainability, and provide a more reliable and user-friendly personalization experience. Demonstrated skills: frontend refactoring, UI integration, filter logic correctness, and documentation updates.
September 2025 — betagouv/agir-front: Delivered a set of user-focused features across search, onboarding, KYC, and offline resilience, alongside enhancements to address management, tagging, and documentation. The work improves user discovery, streamlines onboarding, strengthens offline UX, and reinforces maintainability with better deployment and tooling. Key outcomes include: improved geolocation search relevance, more robust address handling, streamlined account creation, and a more usable KYC flow, all while keeping the UI responsive and maintainable.
September 2025 — betagouv/agir-front: Delivered a set of user-focused features across search, onboarding, KYC, and offline resilience, alongside enhancements to address management, tagging, and documentation. The work improves user discovery, streamlines onboarding, strengthens offline UX, and reinforces maintainability with better deployment and tooling. Key outcomes include: improved geolocation search relevance, more robust address handling, streamlined account creation, and a more usable KYC flow, all while keeping the UI responsive and maintainable.
August 2025 (betagouv/agir-front): Delivered a revamped action catalog and selection UX, enhanced release automation and changelog handling, and improved navigation and KYC flows. The work reduces manual release effort, increases release reliability, and improves user experience and compliance. Key items include new action catalog (#1291) and selection (#1249); Release Please manifest/config and always-update property; PR update verification; changelog integration/serialization; navigationStore restructuring; KYC mandatory flow; and targeted UI fixes.
August 2025 (betagouv/agir-front): Delivered a revamped action catalog and selection UX, enhanced release automation and changelog handling, and improved navigation and KYC flows. The work reduces manual release effort, increases release reliability, and improves user experience and compliance. Key items include new action catalog (#1291) and selection (#1249); Release Please manifest/config and always-update property; PR update verification; changelog integration/serialization; navigationStore restructuring; KYC mandatory flow; and targeted UI fixes.
July 2025: Front-end work on betagouv/agir-front delivered a major UI revamp, new features, and accessibility improvements that enhance user experience, personalization, and cross-feature consistency. The month focused on aligning the frontend with a modern design system (CarteDsfr), expanding energy-tracking capabilities, and enabling personalized actions while maintaining accessibility and performance.
July 2025: Front-end work on betagouv/agir-front delivered a major UI revamp, new features, and accessibility improvements that enhance user experience, personalization, and cross-feature consistency. The month focused on aligning the frontend with a modern design system (CarteDsfr), expanding energy-tracking capabilities, and enabling personalized actions while maintaining accessibility and performance.
June 2025 focused on strengthening user experience, accessibility, tracking, and feature extendability, while expanding risk assessment capabilities. Key work includes a MAIF simulator, a reusable back-navigation component and accessible form IDs, enhanced login tracking for FranceConnect, explanations for recommended actions with backend support, and a connected homepage experience with ecological footprint overview. Address input validation and a missing image asset fixed improved reliability. These outcomes enhance user journeys, attribution accuracy, and actionable insights for eco-friendly decisions.
June 2025 focused on strengthening user experience, accessibility, tracking, and feature extendability, while expanding risk assessment capabilities. Key work includes a MAIF simulator, a reusable back-navigation component and accessible form IDs, enhanced login tracking for FranceConnect, explanations for recommended actions with backend support, and a connected homepage experience with ecological footprint overview. Address input validation and a missing image asset fixed improved reliability. These outcomes enhance user journeys, attribution accuracy, and actionable insights for eco-friendly decisions.
Month 2025-05 — Monthly summary for betagouv/agir-front focusing on accessibility, performance, and content-driven UX improvements. Delivered a mix of features and reliability fixes across forms/UI, mobile authentication, analytics, and content experiences, with an emphasis on business value, user satisfaction, and data-driven decision making. Highlights include DSFR-aligned UI polish, robust a11y enhancements, improved content discovery for the library and collectivités pages, and performance gains from data caching and improved routing tracking.
Month 2025-05 — Monthly summary for betagouv/agir-front focusing on accessibility, performance, and content-driven UX improvements. Delivered a mix of features and reliability fixes across forms/UI, mobile authentication, analytics, and content experiences, with an emphasis on business value, user satisfaction, and data-driven decision making. Highlights include DSFR-aligned UI polish, robust a11y enhancements, improved content discovery for the library and collectivités pages, and performance gains from data caching and improved routing tracking.
April 2025 monthly summary for betagouv/agir-front: The month focused on delivering a strong UI/UX refresh, expanding search capabilities, and hardening reliability, all while enhancing accessibility and content clarity. Delivered features and mailable improvements span landing page revamp, advanced address-based search, richer page titles, and a new mosaic content display, complemented by a dedicated feedback/help workflow.
April 2025 monthly summary for betagouv/agir-front: The month focused on delivering a strong UI/UX refresh, expanding search capabilities, and hardening reliability, all while enhancing accessibility and content clarity. Delivered features and mailable improvements span landing page revamp, advanced address-based search, richer page titles, and a new mosaic content display, complemented by a dedicated feedback/help workflow.
March 2025 performance summary for betagouv/agir-front: Delivered a set of UX, data-validation, and architecture improvements that enhance onboarding, navigation, and engagement. Implemented Action Catalogue with filter and improved recommendations, personalized Connected Home Page, modularized KYC flow, and robust FranceConnect error handling. Upgraded date of birth input to day-month-year with full validation; added quiz navigation tracking; introduced UI consistency improvements across components. These changes enable smoother user journeys, higher completion rates, and a more maintainable frontend.
March 2025 performance summary for betagouv/agir-front: Delivered a set of UX, data-validation, and architecture improvements that enhance onboarding, navigation, and engagement. Implemented Action Catalogue with filter and improved recommendations, personalized Connected Home Page, modularized KYC flow, and robust FranceConnect error handling. Upgraded date of birth input to day-month-year with full validation; added quiz navigation tracking; introduced UI consistency improvements across components. These changes enable smoother user journeys, higher completion rates, and a more maintainable frontend.
February 2025 monthly summary for betagouv/agir-front focusing on frontend UX improvements, personalization, and reliability. Delivered a set of features that enhance user discovery of local services, enable personalized action recommendations, and strengthen data handling and testing. The work emphasizes business value: improved conversion on local services, reduced user friction during onboarding, and stronger data integrity for INSEE-based collectivité data. Key features delivered include an updated Aides UI, a revamped Collectivité page, an actions catalog with personalization groundwork, a personalized actions flow with KYC, and interactive action quizzes.
February 2025 monthly summary for betagouv/agir-front focusing on frontend UX improvements, personalization, and reliability. Delivered a set of features that enhance user discovery of local services, enable personalized action recommendations, and strengthen data handling and testing. The work emphasizes business value: improved conversion on local services, reduced user friction during onboarding, and stronger data integrity for INSEE-based collectivité data. Key features delivered include an updated Aides UI, a revamped Collectivité page, an actions catalog with personalization groundwork, a personalized actions flow with KYC, and interactive action quizzes.
January 2025 monthly summary for betagouv/agir-front. Focused on delivering user-centric UX improvements, robust form validation, and UI polish to reduce submission errors and improve navigation. Implemented four major feature updates across quiz/challenge UX, community page terminology and previews, and service naming/URL consistency, complemented by maintenance work to streamline routes and enhance accessibility. Addressed two critical bugs affecting KYC flow and error tracking (Sentry), enhancing reliability of user journeys. The work demonstrates strong front-end craftsmanship, accessible design, and a scalable approach to feature delivery.
January 2025 monthly summary for betagouv/agir-front. Focused on delivering user-centric UX improvements, robust form validation, and UI polish to reduce submission errors and improve navigation. Implemented four major feature updates across quiz/challenge UX, community page terminology and previews, and service naming/URL consistency, complemented by maintenance work to streamline routes and enhance accessibility. Addressed two critical bugs affecting KYC flow and error tracking (Sentry), enhancing reliability of user journeys. The work demonstrates strong front-end craftsmanship, accessible design, and a scalable approach to feature delivery.
December 2024 —betagouv/agir-front monthly summary focused on delivering core navigation, UX, and data features with measurable business impact. Key outcomes include an auth-aware Site Map, mobile-optimized Landing Page enhancements, a revamped Quiz/Exam UX with skeleton loading and a KYC stepper, and a new Community Statistics view with personalized parcours. These changes reduce friction in key user journeys, improve perceived performance, and enable data-driven discovery of local communities.
December 2024 —betagouv/agir-front monthly summary focused on delivering core navigation, UX, and data features with measurable business impact. Key outcomes include an auth-aware Site Map, mobile-optimized Landing Page enhancements, a revamped Quiz/Exam UX with skeleton loading and a KYC stepper, and a new Community Statistics view with personalized parcours. These changes reduce friction in key user journeys, improve perceived performance, and enable data-driven discovery of local communities.
November 2024: Delivered two key frontend enhancements for betagouv/agir-front that streamline onboarding and strengthen the user verification flow, delivering measurable business value and improved developer efficiency. Key features include Simplified Onboarding with a Default Bilan Carbone view and Integrated KYC in the Mission Flow. These changes reduce onboarding friction, accelerate activation, and consolidate KYC steps within the main mission component. Major code changes are backed by commits that demonstrate a clean refactor and improved UX skeleton loading. Technologies demonstrated include React component orchestration, UI/UX flow refactoring, and skeleton loading patterns for perceived performance.
November 2024: Delivered two key frontend enhancements for betagouv/agir-front that streamline onboarding and strengthen the user verification flow, delivering measurable business value and improved developer efficiency. Key features include Simplified Onboarding with a Default Bilan Carbone view and Integrated KYC in the Mission Flow. These changes reduce onboarding friction, accelerate activation, and consolidate KYC steps within the main mission component. Major code changes are backed by commits that demonstrate a clean refactor and improved UX skeleton loading. Technologies demonstrated include React component orchestration, UI/UX flow refactoring, and skeleton loading patterns for perceived performance.
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