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Maxime Dréau

PROFILE

Maxime Dréau

Maxime Dreau led full-stack development on betagouv/france-chaleur-urbaine, delivering over 500 features and 250 bug fixes across 16 months. He architected robust data pipelines, modernized the codebase with Next.js, TypeScript, and PostGIS, and implemented scalable admin and analytics modules. Maxime refactored legacy services to TRPC, improved spatial data integrity, and introduced automated testing with Vitest. His work included UI/UX enhancements, advanced map visualizations, and streamlined OpenData publishing. By integrating analytics with PostHog and Matomo, and enforcing code quality with Biome and pnpm, Maxime ensured reliable deployments, maintainable workflows, and data-driven decision-making for the France Chaleur Urbaine platform.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

1,152Total
Bugs
251
Commits
1,152
Features
514
Lines of code
201,747
Activity Months16

Your Network

4 people

Shared Repositories

4
florence.levyMember
Martin RatinaudMember
Morgan MerzoukMember
Morgan MerzoukMember

Work History

February 2026

6 Commits • 3 Features

Feb 1, 2026

February 2026 monthly summary for betagouv/france-chaleur-urbaine: Delivered high-value features, fixed critical issues, and strengthened maintainability and data governance. Key features include analytics integration with PostHog and consent management, preserving compatibility with Matomo and adding map click tracking; OpenData module refactor with commands for generating and publishing OpenData archives; and UI cleanup by removing the cost comparison banner to streamline the user experience. Major bug fixes include removing Bordeaux-specific eligibility handling to broaden applicability; updating TypeScript and pnpm dependency management to align with Scalingo pruning; and removing outdated heat network docs for clarity. These efforts improved data-driven decision-making, reduced technical debt, and enhanced user experience. Technologies demonstrated include PostHog integration, consent-based tracking, CSP proxy usage, TypeScript, pnpm, and modular OpenData architecture, plus documentation hygiene. Business value: more robust analytics with privacy controls, standardized data publishing workflows, and a cleaner UI leading to better user engagement and faster feature delivery.

January 2026

73 Commits • 40 Features

Jan 1, 2026

January 2026 monthly summary for betagouv/france-chaleur-urbaine: This month focused on stabilizing core APIs, enhancing data presentation, and laying groundwork for faster tests and improved developer experience. The team delivered admin UX improvements, strengthened API governance with rate limiting, improved data page usability, and advanced performance and testing capabilities. Business value was delivered through faster, more reliable admin workflows, safer API usage, and a more maintainable data platform, while technical work improved rendering performance, test feedback, and tooling.

December 2025

65 Commits • 33 Features

Dec 1, 2025

December 2025 productivity and impact for betagouv/france-chaleur-urbaine focused on platform modernization, reliability, and data capabilities. The month delivered a major tech refresh, user-facing UX improvements, and enhanced data analytics, aligning with business goals of faster, more stable deployments and richer insights.

November 2025

5 Commits • 3 Features

Nov 1, 2025

November 2025 monthly summary for betagouv/france-chaleur-urbaine: Delivered targeted business-value updates across data metrics, developer experience, spatial data integrity, and API reliability. Key features/updates include: (1) Statistics data update for November 2025 to reflect current metrics (CO2 tons, connections, iFrame integrations, housing units, last activity date); (2) Enabled ErrorLens extension to improve in-editor error visibility and developer experience; (3) Spatial data validation and cleanup with geometry validation, a helper to map GeoJSON types to PostGIS dimensions, and a migration to fix invalid geometries ensuring data integrity for spatial operations; (4) Bug fix to eligibility status API return value by refactoring eligibility status and city network routes, removing redundant type conversions and correcting eligibility checks. These changes were implemented via commits fb07d5e26cc89a0d2bf7e696c1b3805fa440083f; b913bd32add450d269a2d620aa069f845afd68e8; 10418ca2605fb079da4be2876a74c63511f917be; 68981ae34039feab343a882b7c0297affe00ffea; c616af572a076949498bb34747886d1d66186d9b. Overall impact includes more accurate operational dashboards, faster debugging, robust spatial data processing, and reliable eligibility outcomes, enhancing decision-making and user trust. Technologies/skills demonstrated include PostGIS geometry handling, GeoJSON processing, database migrations, API refactoring, and developer tooling (ErrorLens) for improved code quality and reliability.

October 2025

99 Commits • 37 Features

Oct 1, 2025

Month 2025-10 — betagouv/france-chaleur-urbaine: Delivered focused business-value improvements across UI/UX, data pipelines, and platform tooling, while modernizing the codebase and stack to boost reliability, performance, and developer velocity. Key features and capabilities shipped include user-facing map UX refinements, data pipeline enhancements for BDNB, and scalable infrastructure upgrades that enable larger data imports and future capability growth. The month also advanced data exports and address/autocomplete capabilities, reinforced testing and code quality, and migrated critical services to a modern TRPC-based architecture.

September 2025

114 Commits • 47 Features

Sep 1, 2025

September 2025 — betagouv/france-chaleur-urbaine: Delivered key features, fixed critical bugs, and advanced build and quality improvements, enabling more reliable data for decision-making and stronger product stability.

August 2025

33 Commits • 18 Features

Aug 1, 2025

August 2025 – betagouv/france-chaleur-urbaine: Focused on strengthening testing, expanding analytics/tracking, and delivering UI, data, and stability improvements that unlock safer deployments and clearer business insights. Key work spanned expanding the test suite, introducing an events table for user activity, improving UI/navigation and performance, enhancing map/data layers for cold potential and urbanizable zones, and stabilizing builds and migrations. These efforts reduce risk, accelerate feature delivery, and improve operational clarity for data-driven decisions.

July 2025

142 Commits • 68 Features

Jul 1, 2025

July 2025 performance summary for betagouv/france-chaleur-urbaine focused on delivering business-value features, stabilizing the codebase, and improving data workflows across the Open Data and admin domains. The team delivered robust admin enhancements, network data improvements, and governance-oriented tooling while tightening CI and testing practices to reduce risk in production.

June 2025

66 Commits • 21 Features

Jun 1, 2025

June 2025 monthly summary for betagouv/france-chaleur-urbaine focusing on stability, developer experience, and data governance. Delivered tooling and migrations modernization, dev-environment hardening, end-to-end tag and network data management, metropolis auto-detection, and UI/UX improvements. These efforts reduce deployment risk, accelerate onboarding, improve data quality, and enhance user-facing interactions while expanding admin capabilities.

May 2025

58 Commits • 24 Features

May 1, 2025

May 2025 monthly summary for betagouv/france-chaleur-urbaine focusing on user-facing feature delivery, stability fixes, and UI/UX refinements across the France Chaleur Urbaine product. Delivered notable improvements in form usability, content breadth for renewable heating, API/TS stability, and overall maintainability. The work reduced user errors, clarified flows, and enhanced analytics instrumentation for better decision-making.

April 2025

66 Commits • 33 Features

Apr 1, 2025

Month: 2025-04 — betagouv/france-chaleur-urbaine delivered a focused set of features and stability improvements, driving data quality, admin efficiency, and user experience. Key features delivered include a geometry metadata enhancement for communes, a new CLI command to refresh geometry info, and Open Data improvements, complemented by admin-facing enhancements.

March 2025

137 Commits • 64 Features

Mar 1, 2025

March 2025 (2025-03) focused on stability, data integrity, UX improvements, and testing across betagouv/france-chaleur-urbaine. Key bug fixes improved reliability of the user workflow and data operations, while feature work expanded geospatial capabilities, CLI robustness, and testing coverage. Upgrades to the test framework and local DB stack position the project for faster, safer releases and easier onboarding for new contributors. The work also included front-end polish and documentation to reduce user friction and improve operational clarity for administrators and analysts.

February 2025

66 Commits • 37 Features

Feb 1, 2025

February 2025 summary for betagouv/france-chaleur-urbaine: Delivered a targeted set of features and stability improvements across the repository, focusing on automation, admin UX, authentication, data/API improvements, and UI modernization. Work enabled faster, safer deployments, improved data quality, and a more maintainable codebase, setting the stage for scalable expansion of the platform. Key scope included CLI enhancements for GitBook steps, UI improvements in the manager space, enhanced layer controls and tooltips for the data layers, dynamic imports and data-layer optimizations, and a comprehensive refactor of authentication/session handling. Tailwind-driven UI modernization and improved CI-friendly changes reduced maintenance overhead and improved developer velocity.

January 2025

75 Commits • 36 Features

Jan 1, 2025

January 2025 monthly summary for betagouv/france-chaleur-urbaine. Delivered major form handling improvements, UI/UX enhancements, and data tooling while stabilizing CI/CD and localization. Implementations focused on business value: safer forms, better user feedback, reliable data pipelines, and improved documentation.

December 2024

76 Commits • 24 Features

Dec 1, 2024

December 2024 — Monthly summary for betagouv/france-chaleur-urbaine. Focused on delivering measurable business value through map enhancements, data quality improvements, and maintainability, enabling better decision support and scalable development. Key features delivered: - SEO Page Descriptions: Updated page descriptions to improve SEO visibility and click-through rates. - Map enhancements: Added 5 new map layers, aligned tile zoom with the base map, introduced a dev mode toggle, and improved interactive UX (hover, popups, and legend). These changes enhance data visualization and user decision support. - Data & integrations: Extended Airtable data for communes à potentiel, added a 1-shot Airtable script to complete data, and imported dotenv for the Kysely DB to streamline local/CI environments. - Analytics and workflow improvements: Integrated Matomo events for better usage analytics and completed a broader codebase refactor to improve maintainability. Integrated professional space workflow access to align with product operations. - Quality and maintainability: Linting enhancements, cleanup of unused code, and project reorganization to simplify onboarding and future enhancements. Major bugs fixed: - UI: Re-display of cold network fiches fixed, and legend alignment issues resolved. - Data parsing: Automatic conversion of PG numbers to JS numbers to prevent type inconsistencies. - Reliability: Cron path issues and console/log cleanup addressed to improve stability. - UI/Modal: Fixed map contact modal and related popups for a smoother user experience. Overall impact and accomplishments: - Improved data visibility and map performance drive faster, data-informed decision-making for users. - Reduced technical debt through architectural refactors and code quality improvements, accelerating future delivery. - Strengthened analytics and data integration capabilities to monitor user interactions and data completeness. Technologies/skills demonstrated: - Frontend: JavaScript/TypeScript, React-based UI patterns, advanced map interactions, accessible UI enhancements. - Backend/Data: Airtable integration scripts, dotenv for DB configuration, Kysely DB setup. - DevOps/Quality: ESLint/configuration tweaks, lint scripts, project restructuring, and test stability improvements. - Analytics/Workflow: Matomo events integration and professional space onboarding integration.

November 2024

71 Commits • 26 Features

Nov 1, 2024

November 2024: Delivered a cohesive blend of user experience improvements, data model enhancements, content updates, and reliability improvements for betagouv/france-chaleur-urbaine. Focused on business value by improving UI consistency and accessibility, strengthening data pipelines for more accurate network analytics, and expanding communications assets to better engage stakeholders. Also advanced testing, tooling, and performance tracking to support ongoing maintenance and scalability.

Activity

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Quality Metrics

Correctness91.6%
Maintainability91.2%
Architecture88.4%
Performance87.8%
AI Usage20.6%

Skills & Technologies

Programming Languages

BashCSSConfigurationDockerfileESLint configurationGitHTMLJSONJSONCJavaScript

Technical Skills

AI integrationAPI DesignAPI DevelopmentAPI DocumentationAPI IntegrationAPI TestingAPI developmentAPI integrationAdmin Panel DevelopmentAirtableAirtable APIAnalyticsAnalytics ImplementationAnalytics IntegrationAnalytics Tracking

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

betagouv/france-chaleur-urbaine

Nov 2024 Feb 2026
16 Months active

Languages Used

BashCSSHTMLJavaScriptMarkdownSQLSVGShell

Technical Skills

API DevelopmentAPI IntegrationAdmin Panel DevelopmentAirtable APIAnalytics IntegrationAnalytics Tracking