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Boubakeur BrahimiBB

Boubakeur Brahimi

IT / AI Architect

€850/day
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Boubakeur

Senior IT Architect with 20+ years of experience in the design, modernization, and governance of critical systems (energy, defense, transport, insurance, tourism). Expert in IT architecture, microservices, DevOps, observability, and AI/LLM integration.
Double engineering degree with a specialization in distributed systems. Proven ability to lead major technical transformations, mentor teams, and manage large-scale national projects in highly demanding environments.

Key Skills:

*Architecture & Design:Microservices, SOA, REST API, TOGAF, ArchiMate, UML

*Development:Java (6-21), Spring Boot, Python, C++, Angular, React, TypeScript

*DevOps & Cloud:Kubernetes, OpenShift, Docker, Ansible, Terraform, GitLab, Jenkins

*Databases:Oracle, PostgreSQL, MySQL/MariaDB, Cassandra, Redis, Elasticsearch

*Monitoring & Observability:Splunk, AppDynamics, Dynatrace, Prometheus, Centreon, Nagios

*AI & Innovation:LLM (ChatGPT, Claude, Gemini...), Ollama, n8n, Workflow Automation

*Middleware & Messaging:RabbitMQ, Kafka, ActiveMQ, Apache Camel, WebSphere, JBoss, Tomcat

*Security:Spring Security, JWT, OAuth2, OpenSSL, PKI, EJBCA
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km)

Experience

  • Karavel
    IT Architect
    January 2022 - Today (4 years and 5 months)
    Leading the modernization of the IT system for a tourism leader.
    Integration of generative AI for observability and process automation across a park of 750+ Tomcat instances.
    Key Achievements:

    *Automated IS Mapping:Automation of IS mapping (PlantUML, Modelio) enabling precise visibility of data flows and interconnections, HLD.

    *Proactive Observability & Monitoring:Deployment of AppDynamics and BRUM (Browser Real User Monitoring) with creation of custom dashboards and alerts ensuring high availability.

    *Advanced Supervision:Development of an internal JMX supervision application (Angular + Spring Boot / Java 21) for real-time monitoring of JVM and server metrics.

    *Generative AI Integration:Optimization of technical log analysis through integration of Ollama (Qwen LLM model...) for intelligent interpretation of system errors.

    *Intelligent Automation:Design of a Java 21 orchestration engine interfaced with Freshdesk, Cortex, and AS400, with automatic AI tagging via n8n.

    *DevOps Industrialization:Setup and maintenance of the CI/CD pipeline (Jenkins, GitLab, Ansible, Docker) to accelerate production cycles.

    *Security & Compliance:Collaboration with the CISO on GDPR implementation (pseudonymization), certificate management, security configuration audits (cipher suites, java.security) JDK 6-21, and secure integration of payment partners (Monext).

    *JVM Analysis & Tuning(Thread/Heap Dumps)
    • Strategic Migration to Java 21: Technical direction of the complete version upgrade of applications (Java 6→21) with optimization of performance and system compatibility.
    Technologies:Java 6/8/11/17/21, Spring Boot, Python, Docker, Ansible, Tomcat, RabbitMQ, Splunk, AppDynamics, BRUM,
    Angular, PlantUML, Modelio, Cypress, SquashTM, n8n, GitLab CI, OpenSSL, Keytool, Rocky Linux
    Spring Boot JAVA / JEE Freshdesk AppDynamics Splunk
  • RTE (via Atos)
    IT Architect
    September 2017 - December 2021 (4 years and 3 months)
    Modernization and optimization of critical calculators for the national electricity transport network (projectsIPST**, **POWSYBL**, **Hades2**, **iTesla- **SEA**).
    Key Achievements:

    *Distributed Scientific Computing:Optimization of electrical simulation performance through Open MPI parallelization and use of C++ libraries (JNI), reducing processing times by 40% through XML parsing optimization (SAX2 Xerces-c).

    *Technical Stack Modernization:Migration of critical modules from C++ to Java 8 and upgrade to Java 11, with complete refactoring of JSON processing (migration to Jackson).

    *Securing Exchanges:Design and implementation of a complete security architecture with API Gateway (Netflix Zuul), JWT authentication, and TLS encryption via shared certificates.

    *Cloud Native Industrialization:Complete automation of the life cycle through Docker containerization (applications, PostgreSQL/Cassandra databases, RabbitMQ) and orchestration with Ansible/Jenkins.

    *Full-Stack Development:Design of supervision/testing HMIs with Angular 6 and development of REST Spring Boot services with integration of distributed messaging systems (RabbitMQ, Kafka, Apache Camel).

    *Agile Governance:Implementation and facilitation of Scrum methodologies across all critical projects.

    Technologies: Java 8/11, Spring Boot, C++, Open MPI, Angular, Cassandra, PostgreSQL, Docker, RabbitMQ, Kafka, Camel, GitLab, Jenkins, Sonar, Ansible
    Docker JAVA / JEE C++ Apache Camel Jenkins
  • ENEDIS (via Sopra Steria)
    IT Architect
    September 2012 - September 2017 (5 years)
    Leading the integration of M2M systems for the national deployment of Linky smart meters (NOC/LinkyCom projects, ICom, supervision and metrology tools).
    Key Achievements:

    *Audit & Decision Support:Conducting technical audits and feasibility studies for the internalization of critical M2M solutions (NOC Atos WL project), including application, technical, and telecom architecture.

    *Cybersecurity (ANSSI Approval):Leading security workshops to meet ANSSI requirements, including module security (JMX, certificates, ActiveMQ), penetration testing, and security guidelines.

    *Major Software Overhaul:Leading the complete overhaul of modules from C++ to Java 8 and managing the migration of NOC Atos mobile concentrators to LinkyCom ERDF.

    *Innovation & R&D:Developing POCs (Apache Spark, Hadoop, Docker, ESXi6) and advanced supervision tools with automatic alerting.

    *Performance & Quality:Performance testing, Sonar setup (Java/C++), acceptance support, and production monitoring.

    *Management & Mentoring:Recruitment and skill development of team members, functional and technical team leadership, workshop and steering committee facilitation.

    Technologies: Java/JEE, Spring (Core, Security, Data), C++, WebLogic, ActiveMQ, RabbitMQ, FreeRadius, Oracle, Ansible, Jenkins, Sonar, AppDynamics, AngularJS, Docker
    JAVA / JEE

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Education

  • Master 2 Professional
    ESIAG - University Paris 12
    2006
    Ingénierie des Systèmes d'Information Distribués
  • State Engineer's Diploma in Computer Science
    ESI
    2002
    Diplôme d'Ingénieur d'État en Informatique

Skill set

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