Freelancer profile translated to English.
Back to original languageAbout Alexandre
Technical expert PHP Back-end with a strong DevOps, AI & Performance culture.
With over 15 years of experience, notably as Tech Lead for the Le Monde group, I master high-traffic issues, micro-services architecture and optimization (Varnish, Redis, Akamai).
Accustomed to 'Factory' environments and Agile methodologies, I am ready to work on modern Symfony stacks and ensure the robustness of video distribution flows.
Contact me to discuss your needs.
French
Native or bilingual
English
Native or bilingual
Can work on-site
Paris (up to 15km)
Experience
- GUTENBERG AGENCYPHP / Performance Study and Development EngineerPUBLISHINGOctober 2023 - Today (2 years and 9 months)Boulogne-Billancourt, France
Context: Optimization and security of high-stakes e-Commerce and ERP platforms.
AchievementsArchitecture & Technical Design:- Analysis and technical scoping of major evolutions
- Writing detailed technical specifications respecting SOLID & ensuring code scalability and maintainability.
- Deployment of centralized authentication solutions (SSO) to secure access to application components.
API Development & Interoperability:- Design and development of service-oriented PHP Back-end.
- Integration and management of REST APIs to ensure communication between different systems.
- Migrations from Symfony 5 to Symfony 6.4
Performance Optimization & Databases:- Advanced bottleneck diagnostics (log analysis & monitoring).
- Optimization of SQL queries and data architecture (modeling, indexing) to reduce latency.
- Implementation of caching strategies (Back-end/Front-end) to ensure fast loading.
Industrialization & Quality (CI/CD):- Management of the application lifecycle via Git/BitBucket and automation of deployments under Jenkins
- Close collaboration with DevOps teams to ensure reliable production deployment.
- Groupe Le MondeTech-Lead / Back-end DeveloperENTERTAINMENT AND LEISURENovember 2020 - April 2023 (2 years and 5 months)Paris, France
Context: Management of the subscription and authentication platform for all group publications (Le Monde, Télérama, L’Obs, Courrier international). Very high availability environment.
Key Achievements:- Architecture & Performance: Optimization of the purchase funnel and authentication API performance (High Traffic). Intensive use of caching strategies (Varnish, Redis, Fastly CDN) to ensure resilience.
- Development & Quality: Design of robust PHP software components (Respect of SOLID principles and Design Patterns). Implementation of unit and functional tests (PHPUnit) to ensure non-regression.
- Event-driven Architecture: Management of user data synchronization flows via RabbitMQ.
- DevOps & CI/CD: Maintenance of continuous integration pipelines under Github/Travis CI and Docker. Systematic Code Review.
- API & Integrations: Development and security of REST APIs. Retrieval of third-party subscriptions ("Subscribe with Google").
- TaliaTale.comWeb Development - AI - Content GenerationENTERTAINMENT AND LEISUREJuly 2023 - December 2023 (6 months)Paris, France
Generation of stories, in text + audio, 100% personalized for children.
Based on details entered by the user, generation of a personalized story for children.
Reviews
Cédric
Adevinta France
Reviewed on 7/22/2020
Mission very well accomplished.
Cédric
Adevinta France
Reviewed on 6/24/2020
Very responsive and very professional
Recommendations
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Education
- Master 2 in Computer Science MIAGEUniversité Paris 1 Panthéon-Sorbonne2014L'objectif du Master de méthodes informatiques appliquées à la gestion des entreprises (MIAGE) est de former les cadres dans le domaine de l'ingénierie des Systèmes d'Information et de Connaissance (SIC) experts en ingénierie, management des systèmes d'information et amélioration des performances. Ses diplômés allient une double compétence en informatique et en gestion.
- Master 2 in Paris SIC ManagementÉcole de Management de la Sorbonne2014Management des Systèmes d’Information et de Connaissance