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Eliot DohollouED

Eliot Dohollou

Expert Spring Boot & Java

€280/day
Brest, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Eliot

  • French

    Native or bilingual

  • English

    Fluent

  • Chinese

    Conversational

Remote only
Primarily works remotely

Experience

  • Noelse (Fintech,
    Architect & Operational Security Advisor
    September 2024 - July 2026 (1 year and 10 months)
    Luxembourg
    Responsibilities and achievements
    • ▪ Led the complete migration of the platform from Java 8 to Java 21: dependency upgrades, refactoring, adoption of new language features.
    • ▪ Migrated applications to Spring Boot 3.x: auto-configuration, externalized configuration, monitoring via Actuator.
    • ▪ Gradual transformation from monolith to microservices architecture.
    • ▪ Developed secure applications in PCI DSS zone: encryption, card data tokenization, secret management with HashiCorp Vault, secure logging.
    • ▪ Developed backend for payment terminal (TPE) acquisition: REST API.
    • ▪ Developed PSP (Payment Service Provider) microservices for complex payment workflows.
    • ▪ Built and maintained the technical roadmap, managed Jira backlog, wrote functional and technical specifications.
    • ▪ Led architecture meetings and proposed designs for modernization.
    • ▪ Created several flow diagrams (payment and data) and maintained technical documentation.
    • ▪ Implemented CI/CD pipelines (Jenkins, GitLab CI/CD), automated Maven builds and JUnit / Mockito tests.
    • ▪ Analyzed and remediated security vulnerabilities, reduced technical debt, improved test coverage.
    • ▪ Developed PHP backend services for payment processing, complementing Java/Spring Boot microservices.
    • ▪ Updated frontend (PHP) and backend (Java) dependencies and libraries for security and compatibility reasons.
    • ▪ Implemented release and change management processes aligned with ITIL; served as official Release & Change Manager. Wrote security policies and worked on security architecture. Managed Jira: created and managed project workflows, user management, board configuration, and automation rules.
  • Clearstream (Deutsche Börse Group), via Taleo Consulting,
    Release Manager
    January 2022 - January 2024 (2 years)
    Luxembourg
    • ▪ Coordinated end-to-end releases for over 200 Java / J2EE applications supporting critical financial operations.
    • ▪ Orchestrated multi-environment deployments (development, test, acceptance, production) with go/no-go validation based on automated tests and quality criteria.
    • ▪ Managed branching strategies, release trains, and change management with international stakeholders.
    • ▪ Validated database schema changes and coordinated with DBA teams, managed Jira.
    • ▪ Led the cross-functional release process with Product Managers, development teams, QA, and business stakeholders.
    • ▪ Rigorously coordinated testing and validation processes (sign-off) between distributed teams and time zones, including a load testing environment.
    • ▪ Led release planning meetings, coordinated go/no-go decisions, and managed reports when necessary.
  • Pictet, via Taleo Consulting,
    Tech Lead & Release Manager
    January 2021 - January 2022 (1 year)
    Luxembourg
    • ▪ Provided technical leadership to the development team on the wealth management platform.
    • ▪ Developed an automated deployment tool for environment-specific releases.
    • ▪ Managed Git branching strategy and merge operations, performed Java and Oracle PL/SQL code reviews.
    • ▪ Improved the CI/CD chain with Bamboo and integrated SonarQube for quality gates.
    • ▪ Orchestrated technical releases: managed branches, coordinated builds, validated deployments.
    • ▪ Articulated technical and business needs in a highly regulated private banking environment.
    Technical environment: Java, Spring Boot, Oracle PL/SQL, Bamboo, SonarQube, Git, Windev, Unix/Linux, Shell

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Education

  • Master in Cybersecurity
    University of Troyes
    2021
    Master en Cybersécurité
  • Professional Degree in Development and Security
    IUT de Vannes
    2015
    Licence Professionnelle Développement et Sécurité

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