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Sullivan D.SD

Sullivan D.

Java Spring / Angular Fullstack Developer

€400/day
Arras, FR
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sullivan

Full stack Java developer passionate about beautiful architectures and well-thought-out projects

Hello and welcome to my profile!
I am a software developer specializing in Java / Spring Boot, with a particular appetite for clean, modular, and maintainable architectures. My background is atypical: former systems & networks technician, then a teacher in middle/high school, I moved into software development with a Bac+4 degree and the desire to design robust, secure, and scalable solutions.

Today, I support companies (VSEs, SMEs, start-ups) in the creation or evolution of their applications: solid backend, clear frontend (Angular), well-designed REST APIs, unit & integration tests, CI/CD, containerization, etc.
I work with good practices: SOLID, TDD, clean code, logs, documentation, security, and performance.

I also attach great importance to communication: I know how to simplify, listen to needs, and explain my choices with pedagogy.

Main stack: Java 17/21, Spring Boot 3, Angular 17, PostgreSQL, Docker, Git, JUnit, Maven/Gradle
Also: MongoDB, WebFlux, OpenFeign, JWT, microservices, Kubernetes...

Based in France, available for 100% remote or occasional hybrid missions.
Want to discuss your project? I would be happy to talk about it!
  • French

    Native or bilingual

  • English

    Conversational

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

Experience

  • Freelance
    Java Application Developer
    December 2024 - Today (1 year and 6 months)
    Certified and passionate Java developer, I excel in designing and developing robust and scalable applications. With expertise in microservices architecture, I am motivated by the challenge of transforming complex ideas into high-performing solutions. Ready to bring my technical know-how and creativity to meet your digital ambitions.
  • education nationale
    Professor
    EDUCATION AND E-LEARNING
    February 2018 - August 2023 (5 years and 6 months)
    - Teaching algorithms and programming fundamentals
    (Python)
    - Organizing educational projects and managing the computer lab
    - Simplified communication of complex technical concepts
  • Filièris
    IT Technician
    TECH
    January 2017 - December 2017 (11 months)
    - Configuration and administration of Cisco routers and switches
    - Installation, configuration, and maintenance of Windows 2008 servers
    - Creation of PowerShell scripts for user account management in Active Directory
    - Technical support for users and training on office tools
    - IT equipment management (Windows 7/10)

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Education

  • State Diploma (DÉ) level 6, Software Design Developer
    OpenClassrooms
    2024
    Diplôme d'État (DÉ) de niveau 6, Développeur Concepteur Logiciel

Skill set

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