
Stefanie Loiseleur developed and maintained core features for betagouv/mon-service-securise, focusing on service lifecycle management, draft workflows, and security controls. She architected end-to-end flows for service versioning and encrypted draft persistence using Node.js, TypeScript, and PostgreSQL, enabling safer, iterative service creation. Stefanie integrated UI/UX improvements with Svelte, refactored component structures, and implemented robust API endpoints for draft and service data. Her work included security level calculations, repository migrations, and event-driven auditing, addressing both usability and compliance. Through careful code organization, comprehensive testing, and modular design, she delivered scalable, maintainable solutions that improved developer productivity and data integrity.

October 2025 performance snapshot focusing on delivering security, usability, and maintainability improvements across the drafting flow, summary rendering, UI kit integration, and repository architecture. Business value was accelerated service creation, improved security posture, and stronger data alignment with production controls, while maintaining high quality through better UX and robust testing.
October 2025 performance snapshot focusing on delivering security, usability, and maintainability improvements across the drafting flow, summary rendering, UI kit integration, and repository architecture. Business value was accelerated service creation, improved security posture, and stronger data alignment with production controls, while maintaining high quality through better UX and robust testing.
September 2025 focused on delivering the foundation for V2 service lifecycle and robust draft management in betagouv/mon-service-securise. End-to-end features were shipped for Service Version 2 (description, naming, and persistence-driven wiring), a Postgres-backed Draft Management flow (creation, encryption, persistence, API exposure, and read paths), and UI enablement for V2 creation. Extensive code quality work and reliability fixes were completed to support a scalable V2 rollout, including SOIN core refactor, API extraction, and targeted UI/UX improvements. Security, data integrity, and performance considerations were addressed through encryption of drafts, explicit tests, and race-condition protection. Overall, these changes establish a solid platform foundation for faster, safer service iterations and improved developer productivity.
September 2025 focused on delivering the foundation for V2 service lifecycle and robust draft management in betagouv/mon-service-securise. End-to-end features were shipped for Service Version 2 (description, naming, and persistence-driven wiring), a Postgres-backed Draft Management flow (creation, encryption, persistence, API exposure, and read paths), and UI enablement for V2 creation. Extensive code quality work and reliability fixes were completed to support a scalable V2 rollout, including SOIN core refactor, API extraction, and targeted UI/UX improvements. Security, data integrity, and performance considerations were addressed through encryption of drafts, explicit tests, and race-condition protection. Overall, these changes establish a solid platform foundation for faster, safer service iterations and improved developer productivity.
August 2025 (betagouv/mon-service-securise) focused on strengthening model governance, bulk operational capabilities, and UI/UX reliability to drive business value. Key work included bulk update support for status and precision, enhanced model configuration UI, robust model/measures deletion workflows with ownership safety checks, andMeasures UI/UX persistence improvements, complemented by improved testing coverage and incremental refactorings for async/await, routing, and repository responsibilities.
August 2025 (betagouv/mon-service-securise) focused on strengthening model governance, bulk operational capabilities, and UI/UX reliability to drive business value. Key work included bulk update support for status and precision, enhanced model configuration UI, robust model/measures deletion workflows with ownership safety checks, andMeasures UI/UX persistence improvements, complemented by improved testing coverage and incremental refactorings for async/await, routing, and repository responsibilities.
July 2025 monthly summary for betagouv/mon-service-securise and betagouv/lab-anssi-ui-kit. Focused on delivering end-to-end measurements capabilities, UI/UX refinements, and reliability improvements that drive data accessibility, model-management workflows, and overall system usability.
July 2025 monthly summary for betagouv/mon-service-securise and betagouv/lab-anssi-ui-kit. Focused on delivering end-to-end measurements capabilities, UI/UX refinements, and reliability improvements that drive data accessibility, model-management workflows, and overall system usability.
June 2025 – Delivery across three repositories focusing on UX improvements, security hardening, and tooling reliability. Key outcomes include a fully functional Measures List UI with search and filters, improved drawer/modal workflow, event-driven auditing for mass edits, stable UI polish (table separators, sticky modals) and security/data governance enhancements (ChaCha20 encryption at rest, Admin Console data encryption, email hashing migrations, and startup secret checks). CI/CD and UI kit upgrades (Husky, UI Kit 1.14.0) supported faster iteration and more dependable builds. Additional polish in ANSSI Portail (Crisp pages, promotions, agent badge) and lab-anssi-ui-kit improvements.
June 2025 – Delivery across three repositories focusing on UX improvements, security hardening, and tooling reliability. Key outcomes include a fully functional Measures List UI with search and filters, improved drawer/modal workflow, event-driven auditing for mass edits, stable UI polish (table separators, sticky modals) and security/data governance enhancements (ChaCha20 encryption at rest, Admin Console data encryption, email hashing migrations, and startup secret checks). CI/CD and UI kit upgrades (Husky, UI Kit 1.14.0) supported faster iteration and more dependable builds. Additional polish in ANSSI Portail (Crisp pages, promotions, agent badge) and lab-anssi-ui-kit improvements.
May 2025 delivered a focused UX and data reliability drive across two Betagouv repos (anssi-portail and mon-service-securise), emphasizing group-session analytics, UI stabilization, and end-to-end service ingestion. The work strengthened business value by stabilizing core UI flows, enabling deeper insights from group sessions, and providing robust data ingestion with per-user persistence and validation.
May 2025 delivered a focused UX and data reliability drive across two Betagouv repos (anssi-portail and mon-service-securise), emphasizing group-session analytics, UI stabilization, and end-to-end service ingestion. The work strengthened business value by stabilizing core UI flows, enabling deeper insights from group sessions, and providing robust data ingestion with per-user persistence and validation.
March 2025 monthly summary for betagouv/anssi-portail: Delivered reliability, validation, and data-directory enhancements with a strong focus on maintainability and business value. Key features include a reworked validation flow and a dedicated request validation middleware to centralize logic, plus a refactored test server configuration to simplify environments. Expanded data and regional support with Region ISO codes and directory resources for Regions, Sectors, and Establishment sizes, enabling richer localization and regulatory alignment. Implemented logging and traceability improvements through a journal adapter and explicit event logging for TestRéalisé. Strengthened security and session handling with JWT expiry session removal and improved authentication redirects. Enhanced user experience in connected mode with updated breadcrumbs/navigation and a comprehensive Favorites system including sharing, storage, and UI updates. Overall, these changes improve data quality, reliability, observability, and user engagement while accelerating onboarding and regulatory compliance efforts.
March 2025 monthly summary for betagouv/anssi-portail: Delivered reliability, validation, and data-directory enhancements with a strong focus on maintainability and business value. Key features include a reworked validation flow and a dedicated request validation middleware to centralize logic, plus a refactored test server configuration to simplify environments. Expanded data and regional support with Region ISO codes and directory resources for Regions, Sectors, and Establishment sizes, enabling richer localization and regulatory alignment. Implemented logging and traceability improvements through a journal adapter and explicit event logging for TestRéalisé. Strengthened security and session handling with JWT expiry session removal and improved authentication redirects. Enhanced user experience in connected mode with updated breadcrumbs/navigation and a comprehensive Favorites system including sharing, storage, and UI updates. Overall, these changes improve data quality, reliability, observability, and user engagement while accelerating onboarding and regulatory compliance efforts.
February 2025 — Betagouv/mon-service-securise: concise monthly summary focusing on business value and technical achievements across authentication, admin governance, and security infrastructure. Key features delivered: - Supervisor Revocation Admin Features: added and propagated the ability to revoke a supervisor across admin console, repository, Postgres adapter, and supervision adapter. - Salt Security Improvements: introduced support for multiple hashing salts, and the initial salt version, plus the framework to migrate salts and verify coherence. - Encryption Architecture Enhancement: encapsulated the base encryption adapter into an object to improve modularity and encapsulation. - Hashing Enhancements: implemented hashing that uses all defined salts in the configuration. - UI/UX and copy refinements: hosting wording changes, removal of the outdated IC evolution stat banner, and UI cartouche layout tightened to a single line. - Schema tweak: increased maximum size of email_hash column in the utilisateurs table to accommodate longer values. Major bugs fixed: - User Authentication and JWT Lifecycle Stabilization: fixed user redirection logic, stopped regenerating JWT on every request, corrected cookie vs JWT expiration handling, ensured frontend handles JWT expiration, and removed obsolete session duration call. Overall impact and accomplishments: - Strengthened security posture and reliability of authentication; improved governance and admin control over supervisor revocation; architectural refinements for encryption and salt management; UI/UX polish improving developer and user experience. Technologies/skills demonstrated: - JWT-based authentication, token lifecycle management, and cookie vs token expiry handling; password hashing with multiple salts and migration frameworks; multi-layer adapters (Postgres, supervision); architecture refactoring and UI/UX polish.
February 2025 — Betagouv/mon-service-securise: concise monthly summary focusing on business value and technical achievements across authentication, admin governance, and security infrastructure. Key features delivered: - Supervisor Revocation Admin Features: added and propagated the ability to revoke a supervisor across admin console, repository, Postgres adapter, and supervision adapter. - Salt Security Improvements: introduced support for multiple hashing salts, and the initial salt version, plus the framework to migrate salts and verify coherence. - Encryption Architecture Enhancement: encapsulated the base encryption adapter into an object to improve modularity and encapsulation. - Hashing Enhancements: implemented hashing that uses all defined salts in the configuration. - UI/UX and copy refinements: hosting wording changes, removal of the outdated IC evolution stat banner, and UI cartouche layout tightened to a single line. - Schema tweak: increased maximum size of email_hash column in the utilisateurs table to accommodate longer values. Major bugs fixed: - User Authentication and JWT Lifecycle Stabilization: fixed user redirection logic, stopped regenerating JWT on every request, corrected cookie vs JWT expiration handling, ensured frontend handles JWT expiration, and removed obsolete session duration call. Overall impact and accomplishments: - Strengthened security posture and reliability of authentication; improved governance and admin control over supervisor revocation; architectural refinements for encryption and salt management; UI/UX polish improving developer and user experience. Technologies/skills demonstrated: - JWT-based authentication, token lifecycle management, and cookie vs token expiry handling; password hashing with multiple salts and migration frameworks; multi-layer adapters (Postgres, supervision); architecture refactoring and UI/UX polish.
January 2025 monthly summary for betagouv/mon-service-securise: Major dashboard revamp completed and delivered with broad UI/UX improvements, strengthened observability, and security/enhancement work across the board. The month focused on delivering business value through a full Tableau de bord V2 migration, reliability improvements for onboarding guided tours, and enhanced service data exploration capabilities.
January 2025 monthly summary for betagouv/mon-service-securise: Major dashboard revamp completed and delivered with broad UI/UX improvements, strengthened observability, and security/enhancement work across the board. The month focused on delivering business value through a full Tableau de bord V2 migration, reliability improvements for onboarding guided tours, and enhanced service data exploration capabilities.
December 2024 — Delivered UX and reliability improvements in betagouv/mon-service-securise, driving faster, clearer user interactions and a stronger onboarding flow. Major features: Dashboard loading indicator refined to initialize on first load; centralized service selection stored in a dedicated Svelte store with automatic clearing on data refresh; user action notifications via a global Toaster; passwordless deletion flow for services and projects; MonProfilAnssi integration with a feature flag and onboarding support. Major bugs fixed: adaptateurProfilAnssi.recupere now returns only the payload and gracefully handles missing profiles to avoid blocking inscriptions. Business impact: reduces user friction, increases onboarding success, and improves maintainability through better state management, standardized notifications, and adapter-based integration. Technologies demonstrated: Svelte stores, global Toaster, passwordless UX patterns, feature flags, API adapters, robust error handling and refactors.
December 2024 — Delivered UX and reliability improvements in betagouv/mon-service-securise, driving faster, clearer user interactions and a stronger onboarding flow. Major features: Dashboard loading indicator refined to initialize on first load; centralized service selection stored in a dedicated Svelte store with automatic clearing on data refresh; user action notifications via a global Toaster; passwordless deletion flow for services and projects; MonProfilAnssi integration with a feature flag and onboarding support. Major bugs fixed: adaptateurProfilAnssi.recupere now returns only the payload and gracefully handles missing profiles to avoid blocking inscriptions. Business impact: reduces user friction, increases onboarding success, and improves maintainability through better state management, standardized notifications, and adapter-based integration. Technologies demonstrated: Svelte stores, global Toaster, passwordless UX patterns, feature flags, API adapters, robust error handling and refactors.
November 2024 — betagouv/mon-service-securise: Delivered foundational enhancements to the Supervisory module, expanded sponsorship/referral flows, and improved UI and mapping reliability. Implemented data models and persistence for supervisors, optimized supervision call paths, enhanced date/entity filtering in dashboards, and updated policy templates. Strengthened testing, onboarding flows, and UI components to support safer, scalable governance and partner sponsorships.
November 2024 — betagouv/mon-service-securise: Delivered foundational enhancements to the Supervisory module, expanded sponsorship/referral flows, and improved UI and mapping reliability. Implemented data models and persistence for supervisors, optimized supervision call paths, enhanced date/entity filtering in dashboards, and updated policy templates. Strengthened testing, onboarding flows, and UI components to support safer, scalable governance and partner sponsorships.
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