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El Missaoui H.EM

El Missaoui H.

Architect / Tech Lead Full Stack / DevOps

€730/day
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About El Missaoui

  • Experienced Architect and Tech Lead with over 20 years of experience in designing, evolving, and governing complex information systems, particularly in the banking, insurance, and enterprise software sectors.
  • Throughout my career, I have supported transformations around distributed architectures and critical systems, working on architecture structuring, cross-functional coordination, documentation, and technical management.
  • I also act as an interface between technical teams and business stakeholders, with a strong ability to simplify complex issues, formalize architecture repositories, and support teams in implementing best practices.
  • I have solid technical expertise (Java, Spring Boot, Angular, React, Kafka, cloud, DevOps) enabling me to communicate effectively with development, operations, and outsourcing teams, while providing a global vision focused on performance, security, resilience, and resource optimization (Green IT).
  • I also possess advanced expertise in securing Spring Boot applications throughout the entire lifecycle (SDLC): integrating best practices from development, implementing secure CI/CD pipelines, and securing deployments and runtime environments. Furthermore, I have implemented automation mechanisms for vulnerability detection and remediation (CVEs), contributing to strengthening the security posture and compliance of systems.
  • French

    Native or bilingual

  • English

    Fluent

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

Experience

  • Société Générale
    Tech Lead
    BANKING AND INSURANCE
    January 2025 - Today (1 year and 5 months)
    Fontenay-sous-Bois, France
    In a cross-functional team: Migration from Nexus to JFrog, CVE analysis and remediation, and strengthening the security and reliability of internal access management applications.

    **Achievements**:
    • Led the migration from Nexus to JFrog Artifactory with script rationalization, per-application governance, and artifact security.
    • Advanced integration of security in CI/CD: automated audits via JFrog Xray, jf audit, CVE report generation, and blocking controls in pipelines.
    • Designed an automated CVE remediation platform (CodeMod, OpenRewrite) enabling the generation of application patches and automatic PRs.
    • Performed large-scale vulnerability analyses with risk mapping and cross-application remediation strategies.
    • Secured APIs (authentication, flow management, Swagger integration - Contract-First approach).
    • Provided technical support and guidance to teams on AppSec best practices, dependency upgrades, and critical vulnerability fixes.
    • Migrated to AWS and rewrote an application for managing the application portfolio and user access rights (roles, permissions, authorizations, tokens).
    • AI-assisted development (Copilot, Claude, GPT) for code generation, refactoring, and technical documentation.


    **Technical Environment**: Java, Typescript, Python, Spring Boot, Angular, React.js, API Gateway, REST API, GitHub, GitHub Actions, Next.js, Node.js, Docker, Jenkins, Kubernetes, OpenRewrite
    Java Spring Boot REST APIs Jenkins Angular
  • CACIB - Credit Agricole
    Tech Lead / Architect
    BANKING AND INSURANCE
    January 2024 - December 2024 (11 months)
    Montrouge, France
    As Tech Lead, responsible for the architecture and delivery of a transactional regulatory reporting platform, ensuring compliance with major international regulations (EMIR ESMA/FCA, MiFID II, CFTC, CSA), in an environment with strict service quality, security, and resilience requirements.

    **Achievements**:
    • Implemented application architectures for new projects.
    • Participated in critical application task forces.
    • Involved in analysis and investigations during major incidents.
    • Regulatory reporting platform based on a Spring Boot microservices architecture, deployed via Docker, integrating Kafka event streams, and transactional data management under SQL Server.
    • Ensured best practices in code quality, CI/CD, performance, and security, with close collaboration with product teams to translate regulatory requirements into robust technical solutions.
    • Created Docker images and integrated Checkmarx analysis (SAST and SCA) into the GitLab CI/CD pipeline.
    **Technical Environment**: Java, Kotlin, Spring Boot, Spring Admin, Feign, Eureka, REST API, SQL Server, Kafka, MQSeries, Elasticsearch, Logstash, Kibana, Grafana, Apache Storm, GitLab, Docker, Bamboo, Kubernetes, AWS, Harbor
    Java Spring Boot CI/CD REST APIs Apache Kafka
  • BPCE SI
    Java/DevOps Architect
    BANKING AND INSURANCE
    January 2022 - December 2023 (1 year and 11 months)
    Paris, France
    Engaged within the Consumer Credit IT Department of BPCE Financement, responsible for the core IT system for consumer credit for the Banque Populaire and Caisse d’Épargne networks. Responsible for architecture and cross-functional technical support across the entire application portfolio.

    **Achievements**:
    • Scoping and managing the migration from Elasticsearch to a group ELK platform (defining target architecture, dual-run strategy, migration procedures).
    • Participation and facilitation of architecture review boards (DA) and validation of technical choices.
    • Organization and monitoring of activities for an internal team and external partners, with a focus on knowledge transfer and technical maturity improvement.
    • Managed migration from legacy systems to the cloud and set up cloud environments for development and testing (JBoss, Apache, HAProxy).
    • Implemented CI/CD pipelines for code quality and application security analysis, supporting development teams.
    • Scoping and managing migrations of Oracle and SQL Server databases.
    • Implemented an automated SQL Server database anonymization process (Jenkins, XLDeploy).
    • Wrote Ansible playbooks for installation, configuration, and hardening (packages, services, users, certificates).
    • Implemented a security Proof of Concept (POC) using Keycloak (SSO, identity and session management).
    Java, Angular, Jenkins, Sonar, Checkmarx, Cloud XLDeploy Ansible SpringBoot Apache Kafka

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Education

  • Computer Science Engineer
    Faculty of Sciences of Tunis
    2026

Skill set

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