Freelancer profile translated to English.
Back to original languageAbout Rafik
Lead Engineer with 10 years of expertise (including 7 years at Docaposte), I design robust and secure architectures for critical sectors (Defense, Banking, Government). My approach combines cutting-edge innovation (Java 25, Angular 21) and high business security.
Arabic
Native or bilingual
French
Native or bilingual
English
Fluent
Can work on-site
Valbonne (up to 50km)
Experience
- DOCAPOSTELead Java & Angular EngineerPUBLIC SECTORDecember 2017 - Today (8 years and 6 months)Valbonne, FranceFor over 7 years at Docaposte, I have been involved in the design and technical management of high-impact software solutions (Ministries, Banks, Defense). My role combines expertise in Cloud architecture (Java 21+, Spring Boot 3.5) and securing sensitive data (IAM/Keycloak).
MAJOR PROJECTS
- **E-Vote Syndicat**: Lead Dev on a multi-tenant Cloud infrastructure (kube, Outscale) for 9 Ministries.
- **DISA (Ministry of Armed Forces)**: Design of a secure dematerialization solution (HashiCorp Vault, RGAA, Java 21)
- **MFS (Maison France Services)**: Management of the national migration to the Cloud. IAM feat: Migration of thousands of accounts to Keycloak without password reset (**transparent encrypted injection**).
- **ZEPHIR (LBP)**: * **Offline-First Architecture**: Development of the mobile module "Celeste" (Angular, PWA, IndexedDB) for consulting financial statistics without a network.
- **AI Integration**: Implementation of a Python micro-service for financial scoring calculation using an XGBoost model.
- **Monitoring & DevOps**: ELK stack for monthly stability reporting. SVN to GitLab migration and CI/CD pipelines.
TECHNICAL EXPERTISE
- Backend & Architecture: Hibernate, Java 8-25, Microservices, Python, JS, Spring Batch, Spring Boot 3.5
- Frontend: Angular 21/20, Highcharts, Material Design (DSFR), PWA, RGAA, RxJS, TypeScript
- Security & IAM: Keycloak Expert (custom SPI), OAuth2/OIDC, OTP/MFA, Vault/HSM encryption, PKCS11/12, Digital Signature.
- DevOps & Cloud: Argo CD, Cloud, Consul, GitLab CI/CD, Kubernetes/ Nomad, Podman/Docker
- Data & Persistence: PostgreSQL, MongoDB, Oracle, Redis
- Servers & Middleware: Nginx, Tomcat, Wildfly / JBoss
- Alliance Technologie S.A.FullStack Java Engineer (FinTech & Security)BANKING AND INSURANCESeptember 2016 - November 2017 (1 year and 2 months)TunisiaInvolvement in the electronic money and digital trust sector, specializing in electronic signature and transactional flow issues.**Cryptography & Signature Expertise**: Development of a digital signature API and electronic certificate management. Integration of high-security hardware solutions (Utimaco HSM, Gemalto smart cards) and manipulation of PKCS11/12 protocols and AES/RSA algorithms.**Transaction Systems**: Complete design of a phone recharge generation platform for large retailers (Aziza). Web Services architecture (SOAP/WSDL) for point-of-sale interoperability.**Automation & Flows**: Development of solutions for automated invoice collection and digitization from various ERPs.**Technical Stack**: Java 8, Spring Security, JSF/Primefaces, PostgreSQL, Payara.
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Education
- Professional Master's in Security of Embedded and Communicating Computer Systems, Computer Science / Computer Systems TechnologyHigher Institute of Computer Science2016Master professionnel en Sécurité des Systèmes Informatiques Communicants et Embrqués, Technologie informatique / technologie des systèmes informatiques
- Applied Bachelor's degree in Computer Systems and SoftwareHigher Institute of Computer Science2014Licence appliquée en Systèmes Informatiques et Logiciels