Freelancer profile translated to English.
Back to original languageAbout Badreddine
Full Stack Engineer with 10 years of experience.
I design and deploy complex mapping web applications for players in mobility, territory, and energy (PTV France, ESRI France, Orange, ENGIE, Préfecture de Police de Paris).
My dual Full Stack + GIS expertise is rare on the market: I master both the design of high-performance interfaces (React.js, Vue.js, TypeScript) and the processing and valorization of geographic data (PostGIS, ArcGIS JS API, MapLibre, GeoServer).
What I bring to your projects:
• Architecture & development of mapping web applications (React.js / Vue.js / Node.js / Express.js)
• Integration and exploitation of geographic data (QGis, PostGIS, ArcGIS, MapLibre, Mapbox, LeafletJS)
• Performance optimization — e.g., -30% response time on a critical service at PTV France
• Tech Lead: application architecture, code reviews, mentoring junior teams
• Data visualization & dashboards (D3.js, Chart.js, ESRI Experience Builder)
Speaker at the SIG 2022 Geo-event Conference (Esri France) — Workshop: Developing with the ArcGIS JavaScript API.
Available for remote missions.
French
Native or bilingual
English
Conversational
Remote only
Primarily works remotely
Experience
- GeoptisFull-Stack & GIS Tech Lead EngineerSOFTWARE PUBLISHINGNovember 2024 - Today (1 year and 9 months)Paris, FranceTechnical leadership of GIS projects and development of full-stack web applications. Management of the development team and strategic participation in application architecture, microservices, and geographic data integration.• • Technical management of the team: mentoring junior developers, code review, dissemination of best practices, and daily support.• • Definition and evolution of the front/back application architecture and GIS pipelines.• • Front-End development in Vue.js: high-performance and user-friendly interfaces adapted to business needs.• • Back-End development in Node.js / Express.js: robust, maintainable, and optimized REST APIs.• • Integration, processing, and valorization of geographic data for GIS applications.• • Continuous improvement: automation, documentation, software quality, and reliable deliverables. Technical environment: TypeScript, Vue.js, Node.js, Express.js, Maplibre, Mapbox, PostgreSQL/PostGIS
- PTV FranceFull-Stack GIS EngineerTRANSPORTATIONJune 2023 - November 2024 (1 year and 5 months)Paris, FranceDevelopment and maintenance of mapping web solutions and backend services. Mentoring junior profiles and optimizing application performance.• • Technical management: mentoring and skill development for junior developers (code review, best practices, pair programming).• • Front-End development in ReactJS / TypeScript: dynamic, intuitive, and optimized interfaces.• • Back-End development in Node.js / Express.js: creation of high-performance and secure APIs.• • Optimization of a critical web service: reduction of response time by 30% through refactoring and query optimization.• • Automation of data import/export processes to ensure reliable flows and reduce manual processing time. Technical environment: TypeScript, ReactJS, Node.js, Express.js
- ESRI FranceFront-End GIS DeveloperSOFTWARE PUBLISHINGApril 2022 - May 2023 (1 year and 1 month)Paris, FranceCreation and customization of mapping applications for various clients using the ESRI ecosystem. Development of advanced widgets and knowledge transfer to internal teams.• • Generation of custom applications with ESRI Experience Builder.• • Development and customization of widgets to enhance business functionalities and improve user experience.• • Front-End development in ReactJS and integration of visualization libraries (D3.js, Chart.js).• • Knowledge transfer and facilitation of training sessions for internal technical teams and users. Technical environment: ArcGIS, TypeScript, ReactJS, Node.js, npm, D3.js
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Education
- Master's degree in GIS ArchitectureNational School of Geographic Sciences ENSG2015Architecture des systèmes d'information géographique
- Master's degree in Geographic Information Sciences.HASSANIA School of Public Works EHTP2013Diplôme d'ingénieur en sciences de l'information géographique.
Certifications
- Speaker — National GIS Conference 2022 (ESRI France)ESRI France2022