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Nicolas BouléNB

Nicolas Boulé

Dev. confirmed full stack | React/Typescript/Java

€600/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Nicolas

Hello 👋

#Who am I?

Versatilefull stackweb developer with 5 years of experience, I have collaborated on projects in various fields (banking, railway, health).
Through these projects, I have been led todesign applications, deploy them, and maintain themover time; all in an international and multidisciplinary context.

Comfortable in bothbackendand **frontend**, I can help you design an application from A to Z, improve an existing system, or strengthen an existing technical team.

#My skills

Backend
  • **REST API Development**: using appropriate frameworks
  • **Security and performance**: implementing an authentication management system, optimization through caching
  • **Databases**: optimizing SQL queries after analysis

Frontend
  • **User interface development**: HTML, CSS, SCSS, Tailwind, Bootstrap, component libraries
  • **Figma**: Mockup integration
  • **Data visualization**: HighChart.js, Chart.js

Tools and practices

  • **Agile**: Scrum, Jira
  • **Testing**: Unit tests, functional tests, E2E tests

Tech Stack
  • **Python**: Django (DRF), FastAPI, Flask
  • **JavaScript/TypeScript**: React.js, Next.js, Vue.js, Node.js, Express
  • **Java**: SpringBoot, Hibernate
  • **Database**: SQL, PostgreSQL, MongoDB
  • **DevOps**: Docker, Kubernetes
  • **Testing**: Jest, Pytest, JUnit, Mockito, React Testing Library, Cypress, FitNesse/DbFit, Cucumber

My strengths


*Curiousand constantly learning

*Versatileand with aproduct vision

*Pragmaticand a follower ofclean architecture


Feel free to contact me to discuss your project.

See you soon! 🚀
  • French

    Native or bilingual

  • English

    Fluent

  • Thai

    Fluent

Can work on-site
Paris (up to 50km), Angers (up to 20km)

Experience

  • UBS
    Tech Lead Java
    BANKING AND INSURANCE
    November 2025 - Today (7 months)
    Paris, France
    Within the team responsible for applications for the front office of UBS France - Private Bank, maintenance of Java applications, particularly those dedicated to the management of life insurance contracts and commercial proposals.

    - Regular discussion with the business to resolve production incidents as quickly as possible or to respond to user requests.
    - Monitoring the migration from Flex/Harman/Drools to React/Java.

    Technical Stack: Java 17/21, Tomcat, IIS, TypeScript, React, VueJS, Oracle Server
    Methods: Scrum
    React.js Spring boot Java 21
  • IQVIA France
    Confirmed Full Stack Developer
    PHARMACEUTICALS INDUSTRY
    October 2024 - October 2025 (1 year)
    Puteaux, France
    - Technical lead within the Innovation Factory, sole developer in charge of developing and deploying generative AI solutions for IQVIA's pharmaceutical clients.
    - Intelligent Chat with RAG: Design and development of a solution for querying social media listening datasets with an intelligent planning system and RAG for a pilot client.
    - Multi-format content generation platform: Development of a comprehensive tool generating LinkedIn posts, newsletters, emailings, flyers, objection handlers, podcast scripts, and customizable commercial pitches via specific personas and instructions.
    - Innovation in scientific claims extraction: Implementation of an automatic claim extraction system from scientific documents with exact citation, and automatic review function for marketing documents.
    - Technical mentoring: Training and skill development of the team (Data Scientist + Product Owner + Intern DevOps) on development practices, CI/CD, and software architecture.
    AI Agent Typescript React.js FastAPI Microsoft Azure
  • Société Générale
    Full Stack Developer
    BANKING AND INSURANCE
    November 2021 - June 2024 (2 years and 8 months)
    Paris, France
    Within the IT department of the central functions of the Société Générale group:
    - Design and development of a new tool for managing key risk indicators related to operational risks, consisting of collecting values and calculating them, used worldwide by more than 2,000 active monthly users.
    - Close collaboration with the Product Owner, Business Analysts, Tech Lead, and developers (10 members distributed across France, India, and Romania) to refine user needs and design the application.
    - Daily tasks include reviewing code and testing practices for consistency within the team, training junior team members, and continuous delivery of new features.
    Java Typescript React.js Spring boot TDD/BDD

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Education

  • Engineering degree, Mechanical Engineering
    Ecole des Mines d'Alès
    2019
    Diplôme d'ingénieur, Ingénierie mécanique
  • Bachelor of Arts in Foreign and Regional Languages, Literatures and Civilizations (LLCER), South-East Asia & Pacific Regional Program, Siamese (Thai) specialization
    Institut national des langues et civilisations orientales (Inalco)
    2022
    Licence Langues, Littératures et Civilisations Étrangères et Régionales (LLCER), Parcours régional Asie du Sud-Est & Pacifique, spécialité siamois (thaï)

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