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Touibi NaderTN

Touibi Nader

JAVA Full Stack Development Engineer

€500/day
Paris, FR
8-15 years
Java
Node.js
Typescript
Database Management
Microservices Architecture

Average response time: 1 hour

Freelancer profile translated to English.
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About Touibi

Senior Java Full Stack Developer | Tech Lead & Technical Referent


With over 11 years of experience, I design and deliver critical applications for thebanking**, **industry**, **energy**, and **logisticssectors. I transform your business needs into reliable, high-performance, and scalable solutions.

An expert inJava**, **SpringBoot**, **Angular**, **Node**, and **GraphQL**, I master **back-endandfront-enddevelopment,scalable architecturedesign, distributed systems management, and **batch processing**. I also lead complex migrations and continuous integration using **Docker**, **Kubernetes**, Jenkins, and **GitLab CI**.

As atechnical referent**, I mentor teams, optimize code quality, and ensure application performance and security. I work with relational and NoSQL databases ( **PostgreSQL,Oracle,SQL Server,**HBase** ) and guarantee data traceability and reliability.

I assist you in delivering **complete and maintainable solutions**, whether they are **banking systems**, multilingual ERPs, industrial applications, or logistics tools. My pragmatic approach: respect your deadlines, secure your data, and provide high-performance applications, while ensuring the buy-in and productivity of the technical team.

If you are looking for a senior developer capable of managing **your project from A to Z**, from design to production, I can turn your ideas into concrete and sustainable success.

  • French

    Native or bilingual

  • English

    Fluent

  • Arabic

    Native or bilingual

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

Experience

  • Société générale
    JAVA Full Stack Development Engineer
    BANKING AND INSURANCE
    January 2023 - Today (3 years and 5 months)
    Puteaux, France

    Regulated Employee Service Tool (REST)

    **Context**: Development of a strategic application to identify employees whose communications must be recorded, monitored, and stored, according to rules defined by the Business Units.
    **Challenge**: Ensure traceability and compliance with legal obligations in a highly sensitive banking environment.
    Team: 5 developers.

    **Key Achievements**:
    • **Technical Design**: Led the design of the database (HBase, Apache Phoenix) to ensure robustness, performance, and scalability.
    • **Development Plan**: Developed the complete roadmap after in-depth analysis of business needs.
    • Back-End Development: Developed the majority of REST services in Java 8 and Spring Boot, integrated security via JWT.
    • **Data Management**: Created Java batch jobs for mass import and regular updates of personnel data from external repositories.
    • **Quality and Maintenance**: Refactored existing code, proactively fixed bugs, and improved overall performance.
    **Technical Environment**:
    Java 8, Spring Boot, Vue 3, JWT, NoSQL, HBase, Apache Phoenix, DBeaver, GitLab, Maven, IntelliJ, Putty.
    Vue.js HBase Gitlab CI/CD Java 21 Putty
  • Altavia Groupe
    Lead JAVA Full Stack Development Engineer
    RETAIL (SMALL BUSINESS)
    August 2021 - January 2023 (1 year and 5 months)
    Saint-Ouen, France

    Collaborative Multilingual ERP (AWS)

    **Context**: Technical lead for the development of a global ERP system used by all entities of the Altavia group. The application managed real-time commercial tracking, request management, quotes and invoices, supplier management, as well as purchasing, inventory, scheduling, and financial reporting.
    **Challenge**: Ensure the reliability, performance, and multilingual compatibility of a central tool for the group's subsidiaries.
    **Team**: 4 developers.
    **Main Responsibilities**:
    • **Technical Mentoring**: Managed and led the development team, assigned tasks, and provided support for blocking issues.
    • **Software Quality**: Supervised code reviews, approved merges, and monitored tests to maintain a high level of quality.
    • **Version Management**: Anticipated and resolved Git (Bitbucket) conflicts to ensure a continuous delivery flow.
    **Key Contributions**:
    • **Architecture and Design**: Participated in scoping workshops, data modeling, and technical architecture choices.
    • **Development and Maintenance**: Handled complex developments and urgent production fixes (hot fixes).
    • **Deliveries and Deployments**: Responsible for production releases and application deployments.
    • **DevOps Collaboration**: Daily technical referent for DevOps teams (Jenkins, Kibana) and contact person for inter-system integrations within the group.

    **Technical Environment**:
    Java/JEE, Spring Boot, JWT, SQL Server, HTML5, CSS3, JSP, JavaScript, Jenkins, Maven, Bitbucket, IntelliJ, Fiddler.
    Java 8 JavaScript JSP Jenkins SQL Server
  • Crédit Agricole Technologies et Services
    Technical Referent HR & COMM Squad
    BANKING AND INSURANCE
    January 2021 - September 2021 (8 months)
    Paris, France

    GFOR (Training Management)

    **Context**: Development and maintenance of the GFOR application, the central training management tool for the Crédit Agricole Technologies & Services group. The application manages the entire employee training cycle, from registration to closure, with a detailed history of participation.
    Team:Project Manager (Product Lead), 1 Product Owner, 2 Business Analysts, 3 Developers (including 1 Tech Lead), 1 Scrum Master, 1 Agile Coach.

    Main Responsibilities:
    • **Project Architecture**: Close collaboration with architects to define and evolve the overall system architecture.
    • **Deployment Environments**: Preparation and coordination with DevOps teams for continuous integration and deliveries.
    • **Deployment and Migration**: Management of processing servers and databases, design of SQL scripts and Java JARs for migration to the new solution.
    • **Web and Batch Development**: Active contribution to the development of the web application and batch processes in Java.
    • **Software Quality**: Implementation and monitoring of unit tests (JUnit), quality control via SonarQube, front-end tests with Karma/Jasmine.
    Technologies Used:Spring Boot, Java 8, Angular 9, Node.js, GraphQL, PostgreSQL, Docker, Kubernetes, Jenkins, GitLab CI, JWT, HTML5, CSS3, Kibana, S3 Bucket, Fiddler, ARCA (IPD), IntelliJ, Maven.
    Java8 GraphQL Kibana AWS S3 SonarQube
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Education

  • National Diploma in Computer Engineering
    Faculty of Mathematical, Physical and Natural Sciences
    2014
    Sciences de l'informatique
  • Preparatory Cycle in Mathematics-Physics
    Preparatory Institute for Engineering Studies
    2010
    Mathématiques-Physique

Skill set

SpringBoot
SpringBatch
GraphQL
REST
Jenkins
SonarQube
AWS S3
Kibana
Backend Service Development
External API integration
Software Architecture
Design Patterns
CI/CD Management
Microservices Architecture
Scripting Automation
Data Privacy (GDPR, CCPA)
Security Awareness Training
Algorithms and Data Structures
Batch Processing
Database Management (e.g., SQL, NoSQL)
Data Cleaning and Preprocessing
Data Migration and Backup
Agile Ceremonies Facilitation
Change and Transformation Management
Workshops Facilitation
ERP Integration with External Systems
ERP System Customization
IT Project Management
IT Service Management

Categories