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Abdul DjoumoiAD

Abdul Djoumoi

Senior Java Backend Developer / Backend Dev Lead

€600/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Abdul

Senior backend developer with 9 years of experience, I have worked on large-scale technical projects within major companies, particularly in the e-commerce, perfumery, and energy sectors. My expertise lies in developing microservices architectures in Java/Spring Boot, integrating CI/CD pipelines, and implementing cloud solutions (Azure, Kubernetes). I also have strong experience as a tech lead, managing teams of 6 to 12 developers, with an approach focused on quality, best practices (TDD, DDD), and agile collaboration (Scrum, SAFe).
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 10km), Athis-Mons (up to 30km)

Experience

  • Publicis Sapient France
    Technology Manager
    November 2023 - February 2025 (1 year and 3 months)
    Paris, France
    • Audit of Givaudan's IS and drafting of a report detailing the strengths and weaknesses of the application portfolio.
    • Co-author of the improvement proposal and objective definitions.
    • Backend lead for a team of 10 people for the development of a React application supported by a microservice backend to demonstrate best practices and establish future standards.
    • Participation in the architects' guild for establishing technical solutions.
    • Training developers on good development practices.

    Technical environment: OpenShift, Contract First API, Hexagonal Architecture, Spring Boot, PostgresSQL, Karate, Gitlab
  • Publicis Sapient France
    Backend Tech Lead
    August 2022 - October 2023 (1 year and 2 months)
    Paris, France
    • Backend technical team lead for the marketplace functionality of the Sonepar B2B e-commerce site. The mission consisted of synchronizing the Sonepar e-commerce platform with the Mirakl SAAS solution responsible for marketplace functionalities. This synchronization covers the entire customer journey from product proposals by sellers to order tracking. It is done either by batch with Spring Batch or in continuous flow via Spring Cloud Stream in Java, depending on the data type and channels used (MongoDB and/or Kafka).
    • Study and proposal of the data synchronization layer between Sonepar and Mirakl.
    • Development of the solution based on Domain Driven Design and support for DevOps teams to deploy the Spring Cloud Dataflow solution in Azure Kubernetes clusters, as well as continuous deployment of applications via Helm and ArgoCD.
    • Support for various Sonepar feature teams to integrate marketplace functionalities into all relevant pages.

    Technical environment: Azure Cloud, Azure DevOps, Hexagonal Architecture, Spring Cloud Dataflow, Spring Boot, Spring Batch, Spring Cloud Stream, MongoDB Atlas, Azure Event Hub, Kubernetes, Karate (tests), Mirakl
  • Publicis Sapient France
    Backend Tech Lead
    August 2020 - July 2023 (2 years and 11 months)
    • Definition of development guidelines and microservices architecture for Sonepar's multi-tenant e-commerce platform.
    • Definition of quality gates for microservices.
    • Development of the first version of CI/CD.
    • Development of a microservice generator.
    • Backend technical team lead for the Aftersale team, responsible for developing functionalities related to authentication, user management, and after-sales service.
    • Development of user registration and notification workflows with Camunda and Sendgrid.
    • Feature flag management with Unleash.
    Technical environment: Azure Cloud, Azure DevOps, Hexagonal Architecture, Contract First API, Spring Boot, MongoDB Atlas, Azure Event Hub, Kubernetes, Karate (tests), Camunda (workflow)

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Education

  • Training
    SAFe
    Formation
  • Engineering degree in Electronics and Digital Technology
    Polytech Nantes
    2016
    Diplôme d'ingénieur en Electronique et Technologie Numérique

Skill set

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