Freelancer profile translated to English.
Back to original languageAbout Yacine
Do you have a critical system to build, a legacy architecture to modernize, or a platform to scale? I deliver robust backend and full-stack solutions, designed to last in production - not just in demos.
What I do:
- Design microservices architectures (Spring Cloud, Kafka, Kubernetes) for high-traffic, high-availability systems
- Java/Spring Boot backend and Angular frontend development, from API to interface
- Cloud infrastructure and DevOps: Kubernetes, Docker, Terraform, GitLab CI/CD, AWS
- Application security audits, OWASP threat modeling, pentesting (certified by BugBounty.ch)
- Migration of legacy systems to modern event-driven architectures
Some concrete achievements:
- Orange: National telecom monitoring platform for 40,000+ devices, several million euros in operational savings
- SIRIUS (French National Veterinary Schools): Microservices system unifying 4 institutions, used daily by thousands of users
- Michelin: Complete overhaul of a group financial platform (VBA/Oracle to event-driven Java/Kafka), within an international team of 15 developers
7 years of experience with production systems for Orange, Michelin, and the public sector. Trilingual French, English, Arabic. Available in Paris, Toulouse, Lyon, Marseille, Montpellier, and elsewhere.
Describe your project, I'll respond within an hour.
French
Native or bilingual
English
Native or bilingual
Arabic
Native or bilingual
Can work on-site
Toulouse (up to 50km), Paris (up to 50km), Marseille (up to 50km), Montpellier (up to 50km), Lyon (up to 50km)
Experience
- ORANGESenior Full Stack EngineerTELECOMMUNICATIONSJanuary 2024 - Today (2 years and 5 months)Toulouse, FranceBuilding a national platform to replace costly on-site telecom infrastructure maintenance by enabling remote monitoring and control ofover 40,000 devices**, reducing field interventions and generating **several million euros in operational savings.
- Developed remote control capabilities for field infrastructure (power, temperature, site operations), improving reliability and response time.
- Designed anAPI-oriented platformunifying 10+ equipment providers behind a single interface, making deployments independent of manufacturers.
- Ensuredhigh availabilityand consistent performance nationwide through containerized infrastructure orchestration.
STACKJava 21, Spring Boot, REST API, Angular, PostgreSQL, Kafka, Kubernetes, Docker, SNMP, MQTT, EtherCAT. - Écoles Nationales Vétérinaires FrançaisesExperienced Full Stack DeveloperMEDICALAugust 2022 - December 2023 (1 year and 4 months)Toulouse, FranceDeveloping **SIRIUS**, a microservices system unifying the four French National Veterinary Schools into **a common application**, used daily by thousands of veterinarians, students, and staff.
- Complete design of the **microservices architecture**: 8 independent services behind a Spring Cloud Gateway and 3 Angular frontends segmented by role.
- Built regulated modules from scratch: billing engine (VAT, discounts, credit notes), French law-compliant digital prescription engine, and patient records.
- Managed theKubernetes infrastructureon OVH from staging to production with zero-downtime CI/CD pipelines.
STACKJava, Spring Cloud, Microservices, REST API, Angular, Kubernetes, Docker, PostgreSQL. - MICHELINFull Stack EngineerAUTOMOBILEJuly 2020 - August 2022 (2 years and 1 month)Clermont-Ferrand, FranceOverhaul of Michelin's group **financial management platform**, migrating from a legacy desktop stack (VBA / Oracle) to a modern event-driven web system, as part of an international team of 15 developers.
- Deployed ahigh-availability Kafka event pipelineon critical topics (orders/invoices) with offset and dead-letter management, alerting, and observability via Prometheus and ELK.
- Built and integratedTalend ETL jobsfor inter-system financial data extraction and transformation.
STACKJava, Spring Boot, Angular, Kafka, PostgreSQL, Oracle, ELK, AWS.
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Education
- Master — Systems & Software EngineerUniversité Marie et Louis Pasteur2020
Certifications
- Recognized Security ResearcherBugBounty.ch2026
- Apache Kafka FundamentalsConfluent2021