Freelancer profile translated to English.
Back to original languageAbout François
Development of complex business applications (Web & Data)
Integration ofGISmapping, data visualization, and business workflows.
Senior Full-Stack Developer with over 20 years of experience on production business applications for research, local authorities, and industry.
I work on business applications, decision support tools, and geo-located data platforms, creating, taking over, or evolving existing ones.
Project Areas
✔ Multi-user business applications
✔ Decision Support Tools (DST)
✔ GIS and geo-located data platforms
✔ Professional web and mobile interfaces
✔ Application takeover, migration, and modernization
Core Stack
✔ Angular, React, Next.js
✔ Flutter (iOS / Android)
✔ Laravel, NestJS, REST API
✔ PostgreSQL / PostGIS
✔ Leaflet, OpenLayers, Mapbox, GIS
✔ Data Visualization (charts, maps)
Common Technical Contexts
✔ Import and synchronization of large volumes
✔ Business calculations and data aggregations
✔ Interactive mapping and GIS layers
✔ Exports, APIs, administration interfaces
✔ Applications used in real production conditions
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- SVF TecnoFlutter DeveloperSOFTWARE PUBLISHINGNovember 2025 - Today (9 months)Coimbra, Portugal
- Offline-first Android Application — field agents in rural areas (Angola), 150k+ records database
- Data-driven form engine (JSON) — validation, field dependencies, conditional visibility, multi-page rendering
- Resilient architecture — dual SQLite database, background synchronization (WorkManager), SHA-256 integrity check, upload recovery
- Security & experience — JWT authentication, photo capture, Bluetooth/USB receipt printing, 3-language interface (FR / EN / PT)
- SVF TecnoOffline-first Mobile Business Application – FlutterSOFTWARE PUBLISHINGSeptember 2025 - November 2025 (2 months)Coimbra, Portugal
- Offline-first field mobile application — data and document collection in areas with low connectivity
- Photo capture with quality control — sharpness (Laplacian), brightness, face detection (ML Kit), EXIF correction, compression
- Resilient bidirectional synchronization — downloaded repository (ZIP, SHA-256, ETag/304, atomic replacement), idempotent multipart upload, background recovery (WorkManager)
- Stack — Flutter, dual SQLite database, REST API, ML Kit
- CIRADDecision Support Tool – Data & GIS PlatformPUBLIC SECTORSeptember 2025 - November 2025 (2 months)Saint-Pierre, Réunion
- Full-stack hydrological platform — Laravel backend: ingestion, cleaning, and automated processing of time series, exposed via REST API for scientific teams
- Angular Dashboards — indicator exploration, dynamic filters, business analysis
- Advanced GIS / mapping — PostGIS / OpenLayers, interactive maps, and spatial visualization tools
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Education
- Higher Institute of Computer ScienceISI -Montreal2006Programmation et Conception Web Programmation Orientée Objet, Java, Java avancé, C, C++, ASP.net, XML, PHP, UML, SQL-Transaq, VB.net, MS-Access, Visual Basic, HTML, JavaScript, MySql, Graphisme.
- Scientific BaccalaureateRoland Garros1999Baccalauréat, Scientifique