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Naoufal JayedNJ

Naoufal Jayed

Senior Backend Developer Java / Spring Boot | API

€300/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Naoufal

Java / Spring Boot Backend Developer with over 4 years of experience in the design, development, and evolution of critical business applications in production.

I primarily work on modern backend architectures based on Java, Spring Boot, REST APIs, and microservices, with a strong focus on code quality, maintainability, and application performance.

I am involved in the entire development cycle: requirements analysis, technical design, development, optimization, and deployment, in close collaboration with product and technical teams in Agile environments.

I have notably worked on platforms with significant business impact in demanding contexts (media, industry), involving:

design of robust backend APIs
management of data flows between multiple systems
integration with relational databases (PostgreSQL)
use of Kafka for asynchronous communication between services
industrialization via CI/CD, Docker, and code quality tools

What I can bring to my clients

✔ Design and development of robust backends in Java / Spring Boot
✔ Design and evolution of performant and secure REST APIs
✔ Implementation of microservices architectures
✔ Integration with PostgreSQL and relational databases
✔ Implementation of exchange flows between applications (Kafka)
✔ Improvement of code quality, performance, and maintainability
✔ Active contribution to Agile environments and exchanges with business teams

📍 Based in Paris – mobile to Lille and major French cities.
On-site or remote work possible depending on project needs.

Available for Java / Spring Boot backend missions focused on APIs, microservices, and application modernization.
  • French

    Native or bilingual

  • English

    Native or bilingual

Can work on-site
Paris (up to 50km), Lyon (up to 50km), Toulouse (up to 50km), Bordeaux (up to 50km), Lille (up to 50km)

Experience

  • TV5 Monde
    Full Stack Java / Spring Boot and Angular Developer
    FILM AND AV
    September 2022 - Today (3 years and 9 months)
    Paris, France
    Development and evolution of a critical business platform for audio/video processing, archiving, and quality control, used daily by broadcast teams.

    Design and development of microservices in Java 11 / Spring Boot
    Exposition and evolution of REST APIs in a distributed architecture
    Implementation and operation of exchange flows via Kafka
    Management of critical data with high requirements for reliability, performance, and traceability
    Optimization of processing and software quality in a sensitive production environment
    Participation in technical choices, corrective and evolutive maintenance, and continuous improvement
    Industrialization with Maven, Jenkins, Git, and Docker
    Work in an Agile Scrum environment with close collaboration with product, QA, and technical teams
    Java Spring boot REST Apache Kafka Microservices
  • Stellantis
    Full Stack Spring Boot & Angular Developer
    AUTOMOBILE
    March 2020 - September 2022 (2 years and 6 months)
    Paris, France
    Development of a web application for object detection within an agile team.

    Design and development of the backend in Spring Boot with exposition of REST APIs consumed by an Angular 13 front end.

    Integration with a PostgreSQL database: modeling, writing, and optimizing queries.

    Implementation and adoption of best practices for Clean Code, code quality (Sonar), Linter, Prettier.

    Contribution to automated tests (TDD/BDD) and continuous integration with Jenkins, Git, NPM.

    Collaboration in Agile mode (Scrum) with product, UX, and technical teams.
    Java Spring boot Angular Typescript PostgreSQL

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Education

  • Engineering Degree – Software Engineering and Data Science
    Ecole d'Ingénieurs du Littoral - Côte d'Opale
    2020

Certifications

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