Freelancer profile translated to English.

Description

Senior Java Developer (+7 years), specializing in hexagonal and microservices architectures with Spring Boot 3 and Java 21.

Expert in Clean Code, application security (OWASP), and CI/CD (GitLab-CI, Terraform, Docker).

Proven experience in AWS (Lambda, S3, DynamoDB) and technical leadership.

I support my clients in delivering scalable, maintainable, and secure applications.

Industry field of expertise

Languages

French
Native or bilingual
English
Conversational

Workplace preferences

Can work on-site

Issy-les-Moulineaux (up to 50km)

axYus
Lead Java/Angular Developer
DIGITAL AND IT
December 2023 - September 2024 (9 months)
Issy-les-Moulineaux, France
Development from scratch of an application in hexagonal architecture (Java 17 → Java 21).
Application security: XSS, CSRF, CRLF, SQLi protection, strict role management.
Implementation of CI/CD GitLab-CI + Flyway (PostgreSQL).
Development of REST & GraphQL APIs documented in OpenAPI/Swagger.
Mentoring 2 junior backend developers (code reviews, TDD, pair programming).

Stack: Java 21, Spring Boot 3, Angular 16, PostgreSQL, Flyway, GraphQL, AWS S3, GitLab-CI, Docker.
Java17 Spring boot 3 Hexagonal Architecture Angular AWS
ACCOR
Java Back-end Developer
HOSPITALITY
June 2021 - October 2023 (2 years and 4 months)
Issy-les-Moulineaux, France
Maintenance & evolution of critical secure REST APIs (OAuth2, OIDC).
Development of AWS Lambdas (authentication, tokens).
Design of an internal library for managing insurance contracts.
Front-end migration Ping Federate → Vue 3.
CI/CD integration with GitLab-CI, SonarQube, OWASP Checker.

Stack: Java 8→11, Spring Boot, OpenAPI, AWS Lambda, Vue 3, GitLab-CI, SonarQube, Splunk.
Java 8 AWS Lambda Spring boot
DHM-IT
JEE/Angular Developer
DIGITAL AND IT
December 2017 - May 2021 (3 years and 5 months)
Neuilly-sur-Seine, France
Refactoring of a monolithic ERP into Spring Cloud microservices + Docker.
REST APIs secured with Spring Security & JWT.
Automated CI/CD (GitLab-CI).
Front-end migration Angular 4 → 6.

Stack: Java 8, Spring Boot, Spring Cloud, Spring Security, Angular 6, MongoDB, AWS EC2/S3, GitLab-CI.
Docker Spring Data Spring Cloud Angular

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Bachelor's Degree in Computer Science Applied to Management
Higher Institute of Management Tunis Tunisia
2014
Diplôme National d'Ingénieur en Informatique
Ecole Polytechnique Internationale et Law and Business School de Tunis
2017

Database Administration Fundamentals
TMI, Tunis, Tunisia
2016
https://www.certiport.com/Portal/Pages/PrintTranscriptInfo.aspx?action=Cert&id=132&cvid=fRLIcoHbBsM33Z6Ip+UTPQ==
Oracle Certified Professional, Java SE 7 Programmer
TMI, Tunis, Tunisia
2016
https://www.youracclaim.com/badges/cc84a46f-12de-4d33-82a5-ae7acab27703/linked_in_profile

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Data Scientist

Mehrez Bellila

Senior Java Engineer – Clean Code, Cloud AWS

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