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Nhat Quang H.NQ

Nhat Quang H.

Full-Stack Web Developer | Java SpringBoot ReactJs

€300/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Nhat Quang

💡 Freelance Developer Engineer | Full Stack | Spring Boot | ReactJs | AI

With over 3 years of experience, I transform my clients' technical challenges into high-performing and strategic software solutions. I specialize in the design and development of web, mobile, and mapping applications, combining technical expertise with business vision.

I've had the opportunity to collaborate with leading companies such as EDF Renewables, SUEZ, ONF, and the Paris Police Prefecture, on demanding projects that have a real impact on the ground. 🚀

My Approach

Sharp Technical Expertise:I cover the entire technology stack, from Java backend (Spring Boot) and .NET to frontend (ReactJS, Angular) 💻🗺️

Trusted Partner:More than just a developer, I am a consultant who adapts to your challenges. I ensure fluid communication and total transparency, from project scoping to delivery. 🤝

Future-Oriented:My constant technological watch allows me to integrate innovations like generative AI and Low Code / No Code solutions to create smarter applications. 🤖🧠

Technical Skills

  • GIS & Mapping : ArcGIS, QGIS, .NET SDK, Kotlin, JavaScript 🗺️
  • Full Stack : Java (Spring Boot, Security, Data), ReactJS, Angular, ASP.NET Core 💻
  • Mobile : Kotlin, Jetpack Compose 📱
  • DevOps & Cloud : CI/CD (GitLab, GitHub), Docker, Kubernetes ☁️
  • Methodologies:Agile Scrum, test automation (JUnit, Mockito, Playwright), TDD, performance optimization 📈
  • AI & Innovation:Semantic search, chatbot development, generative AI & Low/No Code watch 🧠

Let's Discuss Your Projects! 📩

Available for remote freelance missions or in the Île-de-France region. I'm ready to bring your ideas to life.
  • French

    Native or bilingual

  • Vietnamese

    Native or bilingual

  • English

    Fluent

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

Experience

  • Vertech'
    Full Stack Software Engineer (Web)
    LUXURY GOODS
    November 2024 - September 2025 (10 months)
    Chalon-sur-Saône, France
    I was responsible for the maintenance and evolution of production control software for the manufacturing of glass bottles. This role involved ensuring the performance and reliability of the systems while meeting the complex operational needs of a demanding industrial environment.

    Key Responsibilities and Technologies:
    Full Stack Development: I used Spring Boot for the backend, designing robust REST APIs to control the production system. On the frontend, I worked with ReactJs, allowing me to build dynamic and high-performing interfaces while mastering the rendering cycle and component optimization.

    Semantic Search: I integrated an AI-based semantic search engine to improve user experience and facilitate access to technical data. This feature streamlined navigation and accelerated decision-making in production.

    Application Lifecycle Management: I implemented CI/CD pipelines with GitLab and used Docker to automate deployments, ensuring fast and reliable deliveries. I also applied rigorous code quality practices, including unit tests, Playwright automated tests, and static analysis via SonarQube.

    Client Relations and Support: I collaborated closely with business teams to understand their operational constraints, providing responsive technical support. This allowed me to adapt software solutions to field needs and bring concrete improvements to production processes.

    This mission allowed me to consolidate my software development skills in an industrial context, combining modern technologies, automation, and client listening.
    Agile methodology Spring boot Docker Gitlab CI/CD React.js
  • Magellium
    Study and Development Engineer (Web & Mobile)
    ENERGY AND UTILITIES
    May 2022 - November 2024 (2 years and 6 months)
    Paris, France
    I worked as a Full Stack Study and Development Engineer, with deep expertise in Spring Boot and ReactJS. My responsibilities included the development and optimization of web applications across various projects, with a particular focus on performance and user experience.

    Backend Development (Spring Boot)

    - Design and implementation of robust and secure REST APIs.

    - Management of authentication and security via JWT and Azure AD.

    - Use of Hibernate and JPA for database management (PostgreSQL, SQL Server), including data migration and population.

    - Implementation of unit tests and code coverage tools to ensure application reliability and quality.

    - Management of notifications and development of document editors (DOCX).

    Frontend Development (ReactJS)

    - Creation of dynamic and intuitive user interfaces.

    - Integration of external APIs for data retrieval and injection.

    - Development of interactive mapping functionalities for data visualization and interaction with mapping systems.

    Methodologies and Tools

    - Implementation of CI/CD practices with GitLab to automate deployments and ensure efficient delivery cycles.

    - Application of agile development methodologies such as Agile Scrum, diagonal architecture, TDD (Test-Driven Development), and Clean Code.
    Spring boot React.js Agile methodology GIS Gitlab CI/CD
  • Laboratoire Informatique de Grenoble (LIG)
    Web Developer
    PRESS AND MEDIA
    April 2021 - October 2021 (6 months)
    Grenoble, France
    My participation in the GenderedNews project involved analyzing the representation of genders in the French media. My main role was to create data processing pipelines and interactive dashboards to visualize the results effectively.

    I developed data processing pipelines using Python and MongoDB, which strengthened our data collection and analysis capabilities. I specifically designed web scraping scripts to extract content from several media outlets, including Le Monde, L'Équipe, Médiapart, etc.

    To present the analyzed data, I created interactive dashboards with Metabase. These dashboards transformed raw data into clear and understandable charts, facilitating the communication of the project's findings.

    I worked closely with the team to ensure deliverables were met on time and that the project progressed smoothly. This experience allowed me to develop my skills in data collection, processing, and visualization, while also strengthening my teamwork abilities.
    Python HTML/CSS MongoDB Jekyll Gitlab CI/CD

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Education

  • IA Engineer for developers
    DataCamp
    2025
    Cette formation m’a permis d’acquérir les compétences clés pour intégrer l’intelligence artificielle générative dans des projets logiciels concrets. J’y ai appris à : - Appliquer les principes fondamentaux de l’IA et concevoir des solutions adaptées aux besoins métier - Comprendre et exploiter les modèles de langage (LLM) dans des cas d’usage réels - Rédiger, affiner et optimiser des prompts efficaces pour améliorer les résultats des modèles - Utiliser Python pour illustrer les bonnes pratiques en ingénierie logicielle et en conception de systèmes complexes - Mettre en œuvre des principes d’AI engineering pour concevoir, déployer et maintenir des systèmes intelligents - Identifier et appliquer les bonnes pratiques de sécurité, de confidentialité et de gestion des risques liées à l’usage de l’IA générative
  • Computer Engineering
    Polytech Grenoble
    2021
    Pendant mes études d’ingénieur à Polytech Grenoble, j’ai reçu une formation complète en informatique, me préparant à m’adapter à une grande diversité de projets techniques et d’environnements. J’ai acquis de solides bases en programmation orientée objet, algorithmes, logique, mathématiques et traitement des données, avec une introduction au machine learning. J’ai également appris à travailler en équipe selon les méthodes Agile, pratiqué la gestion de projet, et développé des compétences concrètes en déploiement continu avec des outils comme Docker et GitLab CI/CD. Cette formation m’a donné la polyvalence nécessaire pour intervenir sur l’ensemble du cycle de développement — de la logique backend à la conception frontend, en passant par le codage collaboratif et la mise en production.

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