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Walid HamatWH

Walid Hamat

Fullstack Developer

€550/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Walid

Java & Spring Boot Developer – Freelance Back-End / Full-Stack

After 5 years of experience in back-end and full-stack development, I am launching my freelance career to bring my skills to your projects.

Experience & Key Skills:

Back-end development: Specialized in Spring Boot, with strong experience in microservices development.
Front-end: Skills in Angular for interactive and performant applications.
Data stream management with Kafka for fluid communication between microservices.
API management with API Management (Axway), integration of OAuth 2.0 and SAML 2.0 protocols to secure applications.
Automation and deployment: Practice with CI/CD tools, including Docker, Jenkins, Kubernetes, to optimize continuous delivery.
Databases: Experience with MySQL, PostgreSQL (relational), and MongoDB (non-relational).
Test design: Writing unit and integration tests with JUnit, Mockito, and BDD via Cucumber.
Agile Scrum and DevOps methodology to ensure fast and quality development.
I prefer full remote, but remain open to a hybrid model (3 days remote, 2 days on-site).

If you have a back-end or full-stack project, contact me to discuss the best way to contribute!
  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Sopra Steria,
    Java / Angular / DevOps FullStack Developer
    June 2023 - Today (3 years)
    Courbevoie, France
    > Back-end development with Spring Boot > Front-end development with Angular > Container management with Kubernetes
    > Integration and calling of Teradata procedures and macros in code, with a basic understanding of Teradata
    > Use of Flyway for database migration management > Code quality analysis with SonarQube > Development of automated tests (AT) with Cucumber > Use of CI/CD chain (Jenkins, Maven) for deployments and for deployment
    > Agile Scrum Methodology: Participation in daily meetings (daily stand-ups), refinement (refinement),
    retrospectives (retrospectives) and other Agile ceremonies > Run Referent and Deployment Referent on a rotating basis within the team:
    > Run Referent: Monitoring the proper functioning of applications, ensuring that exchanges between
    applications occur without errors, using Grafana and other internal monitoring tools
    > Deployment Referent: Preparation of the deployment plan, ensuring that all changes to be deployed to production are properly integrated, completing the Delivery Report (DR) concerning the deployment, participating in production meetings
    to ensure the success of deployments
    Start:
  • Logteam,
    DevOps
    July 2022 - March 2023 (8 months)
    Paris, France
    > 5-day in-person API Management training certified at Axway University > Agile Methodology
    > Technical documentation on: the use of the Axway Management tool, OAuth 2.0, single sign-on (SSO) service based on SAML 2.0 ... (Confluence, excalidraw)
    > Automation of integration tests for the policies of the different OAuth 2.0 flows of the API gateway (BDD "Behavior Driven Development" approach, CucumberJS and Gherkin) > Generation of sequence diagrams defining the complete mechanism of the oauth2.0 protocol and its different flows (PlantUML). > Development/Evolution of policies.
    > Participate in technical support: help the client virtualize, evolve, secure, and test their APIs deployed on
    the gateway > API Management (Axway): API Manager, API Gateway Manager, Configuration Studio, Policy Studio > Protocols: 1. Authorization: OAuth 2.0 (Client Credentials flow, Implicit Grant flow, Device Authorization flow, Authorization
    Code flow and Authorization Code flow with PKCE <public and confidential>, JWT grant flow.) 2. Authentication: Security Assertion Markup Language 2.0 (SAML 2.0)
  • Geolane,
    Computer Science Developer
    July 2020 - June 2022 (1 year and 11 months)
    Vanves, France
    > Web Development (API, microservices...) in Spring Boot > Dockerization of projects. > Magento Maintenance > Instantaneous DB Replication with Maxwell's daemon, > VM Creation/Management: VMware ESX, PROXMOX (pfsense)

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