Saad HSSAINI

Senior Full Stack Developer | Java & Angular

5 recommandations

Salaire / Taux journalier

5 personnes recommandent

78300 Poissy, France

Mobilité : Paris

Freelance

Peut venir sur site

Expertises

NextSpring BootReactJavaTypescriptPostgreSQLAngularNode

Langues

Anglais

Recommandé par

Franck GAILLE

Fradev

Dev Java

A recommandé le 16 septembre 2025

Sébastien BRUN

SOFTWAY MEDICAL

Développeur Full Stack

A recommandé le 17 septembre 2025

Saâd Eddine GOUHMID

RTE Réseau de Transport d'Electricité

Développeur Full Stack Java Angular

A recommandé le 01 octobre 2025

Et 2 autres personnes

À propos

Introduction

Tech Lead & Full Stack Developer with 10+ years building scalable web applications and microservices architectures. Led high-traffic automotive platforms at leboncoin, architected AI applications, and delivered solutions for major brands like CHANEL and Société Générale. Expert in Java/Spring, Angular/React, and cloud infrastructure with proven team leadership skills.

Liens

Expérience de travail

Tech Lead Full Stack

leboncoinFreelance

avr. 2024 - juin 2025

1 an 3 mois

Paris, France

Contexte : Pilotage technique de plusieurs applications critiques à fort trafic pour le marché automobile. Coordination des équipes dév, PO et métiers. Responsabilités : Architecture multi-applicative & Microservices : Conception et standardisation d’une architecture microservice pour services Java et PHP garantissant modularité et testabilité, et définition des schémas de communication inter-services via REST APIs, Kafka et RabbitMQ. Qualité du code & Revue technique : Mise en place de pipelines GitLab CI/CD avec scans SonarQube, tests unitaires (JUnit) et d’intégration automatisés, et animation de sessions de code review et pair-programming pour diffuser les bonnes pratiques (SOLID, Clean Code). Observabilité : dashboards Kibana, Slack et mailing pour surveiller latence, erreurs et consommation de ressources Gestion de crise & Résilience : Implémentation d’alertes via Kibana et monitoring Slack, pilotage des post-mortems et actions correctives pour garantir une haute disponibilité Mentorat & Transfert de compétences : Formation et accompagnement de 5 développeurs juniors (ateliers techniques, pair-programming), et rédaction de guides d’onboarding et de kits UI/UX. Interface métier & Pilotage stratégique : Animation d’ateliers de cadrage avec Product Owners et clients

Développeur Fullstack LLM / CTO (JAVA / ANGULAR / REACT.JS / NEXT.JS / PYTHON )

GETSENSEFreelance

mars 2023 - mars 2024

1 an 1 mois

CONTEXT: Application Developer - Artificial Intelligence (AI) ACTIVITIES & RESPONSIBILITIES: ● Designed and developed an AI application for extracting insights from data, following a clean architecture approach. ● Utilized Java, Angular, React.js, and Next.js technologies to create a responsive and user-friendly interface. ● Integrated DevOps practices to ensure continuous deployment and effective version control. ● Implemented development and deployment infrastructure using Vercel to ensure optimal user experience. ● Managed data persistence with PostgreSQL, ensuring database security and performance. ● Utilized QStash for messaging in a serverless environment, facilitating smooth communication between application components and scalability Environnement Technique : Java / Angular / React.js / Next.js / Vercel/ Postgrsql / QStash: Messaging for the Serverless

DÉVELOPPEUR SENIOR FULL STACK ANGULAR / REACT / NEXTS.JS / JAVA

CHANELFreelance

janv. 2022 - mars 2023

1 an 3 mois

FIRST 6 MONTH : CONTEXT Served as a senior developer for multiple microservice projects using Angular and Spring Boot. The primary objectives were to aggregate documents and data from various sources, reorganize and structure them based on specific business rules, and periodically execute business rules. ACTIVITIES & RESPONSIBILITIES: ■ Translated functional requirements into technical specifications. ■ Evaluated technological feasibility and opportunities for the requested features. ■ Documented applications for future development and production deployment. ■ Tested, identified, and addressed potential malfunctions in the developed applications. ■ Ensured that developed features met the functional requirements and specifications. ■ Practiced "Test First" methodology Technical Environment: Angular, Spring, Java, PostgreSQL, Full Stack Development, AFTER 6 MONTH: CONTEXT Served as a senior developer for multiple projects using Angular / React / Spring Boot. The primary objectives were to create starter code for Front End and kit Ui Chanel. ACTIVITIES & RESPONSIBILITIES: ■ Provided technical assistance for the maintenance and improvement of existing projects, ensuring a smooth transition of modifications and updates. ■ Worked in a diverse technical environment, including Angular, React, Spring, Java, PHP, WordPress, and PostgreSQL, adopting a Full Stack development approach to meet project requirements. ■ Leveraged Azure platform capabilities for cloud service management and application hosting, ensuring maximum availability, performance, and security of the applications. ■ Collaborated closely with a cross-functional team of developers, project managers, and other stakeholders to ensure timely delivery and quality of projects. ■ Participated in regular team meetings, contributing to discussions, and sharing ideas to improve the development process and optimize application performance. Technical Environment: Angular, React, Spring, Java, PostgreSQL, Azure.

TECH LEAD / FULL STACK DEVELOPER (JAVA / ANGULAR)

ADEOFreelance

mars 2021 - déc. 2021

10 mois

69340 Francheville, France

CONTEXT Served as a Tech Lead for a dashboard project developed in Angular and Spring Boot. The application architecture encompassed three backend services and one frontend, all containerized with Docker and utilizing continuous deployment. The aim was to aggregate data from diverse sources using Kafka, APIs, and Google Cloud's BigQuery. This data was then exposed to the frontend based on business rules. The application also automated warnings, monitoring, and periodic tasks. The project team comprised two frontend developers, one backend developer, a tester, a product owner (PO), and a Scrum master. I was responsible for setting up the frontend architecture and decided to implement a store on the frontend. ACTIVITIES & RESPONSIBILITIES: ■ Translated functional requirements into technical specifications. ■ Assessed technological feasibility and opportunities for the requested features. ■ Played a role in structuring the databases. ■ Documented applications to guide future development and production deployment. ■ Designed software architecture and proposed the project's framework. ■ Harmonized and standardized all components and applications. ■ Adhered to the Agile Scrum project methodology. ■ Produced documentation using Confluence. ■ Practiced "Test First" development methodology. ■ Ensured that developed features complied with the functional requirements and specifications. Environnement Technique : Angular, Spring, Java, PostgreSQL, DEVOPS, KAFKA, Full Stack Development, Kubernetes, Docker, GitHub, GitHub Actions, BigQuery.

Développeur Full Stack Freelance

Traxens

févr. 2019 - mars 2021

2 ans 2 mois

Région de Marseille, France

CONTEXT Involved in the development of multiple projects utilizing Angular, Spring Boot, Node.js. The primary objective was to aggregate data sourced from IoT devices associated with maritime and rail containers. This data was then displayed on the frontend, adhering to specific business rules. ACTIVITIES & RESPONSIBILITIES: ■ Worked in a multi-project environment focused on acquiring and enriching IoT data. ■ Translated functional needs into technical specifications. ■ Assessed the technological feasibility and opportunities of requested features. ■ Designed software architecture and recommended project frameworks. ■ Took charge of application development, including prototypes and modules. ■ Played a role in structuring databases. ■ Harmonized and standardized all components and applications. ■ Documented applications for future development and production deployment. ■ Tested, identified, and addressed potential malfunctions in the developed applications. ■ Ensured that the developed features complied with functional requirements and specifications. ■ Developed an API for a mobile application using Rest, Spring Boot, and MongoDB. ■ Led a principal project using Angular 11 with a Spring back-end, a Cassandra database, and Kafka (as a publisher) to broadcast events to other services and for app migration. ■ Worked on a migration project using Spring Boot to listen to Kafka (as a consumer) to enrich events and save them to PostgreSQL. The second part of the project was largely about configuring Kafka Connect for PostgreSQL. ■ Followed Agile Scrum methodology. ■ Practiced "Test First" methodology. Technical Environment : Java, Angular TypeScript, JavaScript, Spring Data, Spring Boot, Kafka, SQL, Spring Security, GitLab CI, Cassandra, Python, Git, Jenkins, Jira, Spring, Docker, Docker-Compose, REST, Hibernate, CSS, HTML5, Bootstrap, Maven, JavaScript/TypeScript, Node.js, Express, MongoDB. Adopted containerization with continuous deployment.

Développeur Full Stack Freelance

INVENGO®. Transforming IoT™

sept. 2018 - mars 2019

7 mois

13600 La Ciotat, France

CONTEXT Worked as a developer on a project utilizing Angular and Spring Boot. The primary objective was to aggregate data from NFCs associated with linens and display this data on the frontend, adhering to specific business rules. Additionally, there was a need to periodically execute business rules on the backend. ACTIVITIES & RESPONSIBILITIES: ■ Served as a Full Stack developer specializing in Java and JavaScript for a web application. ■ Translated functional needs into technical specifications. ■ Utilized programming languages such as Angular 5-6 and Java EE 8 Spring Boot. ■ Proposed improvements and software architecture designs. ■ Managed databases using PostgreSQL with Hibernate and Liquibase. ■ Experienced with GITLab, AWS deployments, and Docker. ■ Adopted Agile Scrum methodology for development. ■ Created detailed documentation for the project. ■ Practiced "Test First" methodology for software development Technical Environment: HTML5, CSS, PostgreSQL, Angular, GitLab CI, Spring Data, SQL, Spring Security, NgRx, Java Spring Boot, Scrum, Full Stack Development

Développeur Full Stack

Société Générale

août 2017 - août 2018

1 an 1 mois

Région de Paris, France

Worked on an Angular and Spring Boot project that aimed to provide a business interface for customer service representatives. This interface allowed for the recording of customer information and the initiation of customer inquiries. Our team was experimental, testing agility within the banking environment. Following our success and subsequent positive feedback from the business side, our division expanded tenfold. ACTIVITIES & RESPONSIBILITIES: Application pour la rentrée en relation clientèle, la vérification légale et l'enregistrement ■ ■ Served as a Full Stack developer, focusing on Java and JavaScript for a web application. ■ Adopted Agile Scrum methodology for the development process. ■ Employed TDD (Test-Driven Development) and BDD (Behavior-Driven Development) methodologies. ■ Endeavored to enhance code quality through best practices, optimization, and clean code principles. ■ Involved in day-to-day tasks, special projects, and other responsibilities associated with the role. ■ Technical Environment: Angular 4-5, Java EE 8 Spring Boot, NoSQL Database (MongoDB), Version control and deployment management, GitHub, Jira, Jenkins, BDD, TDD, Agile Scrum, Java 8, Spring, Angular 5, JavaScript, MongoDB.

Développeur Java Full Stack

LOGIN S.A.

juil. 2015 - août 2017

2 ans 2 mois

Région de Paris, France

Worked on an Angular and Spring Boot project that aimed to provide a business interface for customer service representatives. This interface allowed for the recording of customer information and the initiation of customer inquiries. Our team was experimental, testing agility within the banking environment. Following our success and subsequent positive feedback from the business side, our division expanded tenfold. ACTIVITIES & RESPONSIBILITIES: Application pour la rentrée en relation clientèle, la vérification légale et l'enregistrement ■ ■ Served as a Full Stack developer, focusing on Java and JavaScript for a web application. ■ Adopted Agile Scrum methodology for the development process. ■ Employed TDD (Test-Driven Development) and BDD (Behavior-Driven Development) methodologies. ■ Endeavored to enhance code quality through best practices, optimization, and clean code principles. ■ Involved in day-to-day tasks, special projects, and other responsibilities associated with the role. ■ Technical Environment: Angular 4-5, Java EE 8 Spring Boot, NoSQL Database (MongoDB), Version control and deployment management, GitHub, Jira, Jenkins, BDD, TDD, Agile Scrum, Java 8, Spring, Angular 5, JavaScript, MongoDB.

Développeur Freelance

freelance

sept. 2012 - juil. 2015

2 ans 11 mois

Paris, France

Développement web et mobile au service des petites entreprises désireuses d'un site ou une application.


Formation

IPSSI

MASTÈRE 2 INFORMATIQUE IT MANAGER

2017 - 2018

2 ans

IPSSI

Mastère 1 Informatique en Développement Web, Mobile et Logiciel ( Bac+4)

2015 - 2017

3 ans

GRETA 92 Nord-La Défense

High Level Technician (BTS - brevet de technicien supérieur)

2014 - 2015

2 ans

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