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Koceila MellazKM

Koceila Mellaz

SENIOR FULL STACK DEVELOPER JAVA/J2EE

€450/day
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Koceila

Full-stack developer specializing in Java/Spring Boot, I have been supporting SMEs and large companies for 18 years in the design and development of web solutions and the optimization of batch processing.
I work on critical projects, autonomously or in an agile team.

I prefer long-term assignments with real business impact, directly with end clients.

  • French

    Native or bilingual

  • English

    Conversational

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

Experience

  • GROUPE ALLIANCE
    SENIOR FULL STACK DEVELOPER JAVA/SPRING BOOT/ANGULAR
    HUMAN RESOURCES
    February 2024 - May 2025 (1 year and 4 months)
    Paris, France

    Project

    Corrective and evolutionary maintenance of the "group commercial base" solution.

    Achievements

    • Optimization of the performance and response times of the solution's screens, the dashboard, contact, company, and skill repositories.
    • Migration of the solution from the Tomcat 7 application server to Tomcat 10.
    • Transition from Java 8 to Java 21.
    • Migration of PDF generation from BIRT to IText PDF.
    • Feasibility study and cost estimation for the redesign of user interfaces to Angular and the redesign of the backend to Spring-boot Java (REST API).

    Technical Environment

    Intellij, Java (8 & 21), Spring 2.5, Spring-boot 3.4.2, Swagger, Angular 19, JSF 1.2 & 2, SQL, Oracle 12c, Tomcat (7 and 10), SVN, Redmine.
    Spring boot Apache Tomcat JSF Angular API REST
  • COVEA
    SENIOR DEVELOPER JAVA/J2EE/JSF
    BANKING AND INSURANCE
    September 2020 - April 2024 (3 years and 7 months)
    Levallois-Perret, France
    Expense Report Management Project (web application used by 24,000 users of the COVEA group). Achievements
    • Study to dematerialize employee expense reimbursement receipts.
    • Study, development, and deployment of Java batches to merge brand processing (MAAF, MMA, and GMF) within the application.
    • Optimization of Java batch processing time.
    • Feasibility study to migrate the Expense Report solution to the group's new technical platform (Java 11, Angular 16, Hibernate, and Microservices, Wildfly 18).
    • Technical migration to the new DB2 database server and application server (Wildfly 18).
    • Analysis and resolution of production anomalies.
    • Daily monitoring of Java batches to ensure stability. Technical Environment Java (6, 8 & 11), Spring JDBC, Hibernate, Jenkins, DB2, WebSphere 8, Wildfly 18, svn, Jira.
  • SPIRICA (Filiale Crédit Agricole Assurances)
    SENIOR DEVELOPER JAVA/J2EE/Hibernate/JSF2
    BANKING AND INSURANCE
    April 2017 - August 2020 (3 years and 4 months)
    Paris, France

    Projects

    • AGSI Application (Real Estate Investment Fund Management Application)
    • Order Book Application Achievements
    • Study and development of functionalities related to the parameterization of real estate investment funds (SCPI, SCI, and OPCI).
    • Study and development of the portfolio stock management module.
    • Study and development of the revenue management module (Entry of received, actual, theoretical revenues and calculation of variances).
    • Testing and deployment.

    Technical Environment

    Java (7 & 8), JSF 2.2, Prime faces (5.1 & 6), Spring Batch, PostgreSQL, Hibernate, Eclipse, Git, Methodologies (Scrum).

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Education

  • JAVA 17 Training
    2024
    Formation JAVA 17
  • ANGULAR Training and Certification (LEVEL 1)
    2023
    Formation et certification ANGULAR (LEVEL 1)

Certifications

Skill set

Categories