Freelancer profile translated to English.
Back to original languageAbout Fabien
Experienced developer and founder of a web agency, I specialize in developing custom business applications and solving complex technical problems. I step in where standard solutions (classic CMS) show their limits.
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- Push It UpSharePoint Document Management Automation (Microsoft Graph)June 2025 - October 2025 (4 months)Paris, France
- Development of a C# / ASP.NET Core service for automated folder creation and fine-grained permission management (ACL).
- Migration of complex AzureAD PowerShell administration scripts to Microsoft Graph SDK **v5**.
- Implementation of secure authentication via Azure Identity (ClientSecret, InteractiveFlow).
- Result: Elimination of human errors in rights assignment and time savings of 2 hours/week for the IT team.
- Push It UpFullstack PHP/MySQL Development of a Subscription Management ERP.CULTUREJanuary 2025 - January 2026 (1 year)Paris, FranceDevelopment and evolutionary maintenance of an internal SaaS solution for complete lifecycle management of a publishing house's subscribers (management of multiple magazines, subscriptions, and third-party payers).
Key Achievements:
Architecture & Database:- Design of a complex relational database (Subscribers, Subscriptions, Deliveries, Invoices).
- SQL performance optimization: Rewriting heavy queries (from several seconds to <100ms) by optimizing joins (INNER JOIN, UNION) and indexing.
Business Features (Back-end):- Billing engine: Management of "Third-Party Payer" subscriptions, calculation of pro-rata and accounting debt management (deferred revenue).
- Subscription lifecycle management: Suspension/resumption algorithms with history, automatic renewal, management of issues served vs. to be served.
- Advanced exports: Generation of complex Excel reports (PhpSpreadsheet library) for accounting and routing (mail merge).
Interface & UX (Front-end):- Creation of a Dashboard with real-time KPIs (Active, Overdue, To be invoiced).
- Integration of dynamic Data Grids (Syncfusion / DataGrids) with Excel filters, sorting, and global search.
- Improved ergonomics via AJAX/jQuery for actions without page reloads (e.g., status changes, dynamic tooltips on hover).
- Push It UpTechnical DirectorSeptember 1999 - Today (26 years and 9 months)Paris, FranceExperienced developer and founder of a web agency, I specialize in developing custom business applications and solving complex technical problems. I step in where standard solutions (classic CMS) show their limits.
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Education
- Computer EngineeringESIGELEC1996