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Kylian GermainKG

Kylian Germain

Fullstack Developer

€500/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Kylian

Full-stack developer (Epitech), I have been involved for ~4 years in high-stakes web and mobile projects: dense back-offices, iOS/Android apps, national platforms. I have managed projects from A to Z: scoping, development, code review, deployment, production support — for demanding client information systems (La Poste, INPI, Printemps, via mission).

Concretely, I am effective in:
- Reinforcing an existing project: evolutions, bug fixing, technical debt, from ticket to production.
- Developing MVPs / small full-stack apps.
- Integrating AI into your products: semantic search, RAG, embeddings, LLM calls.

Main stack: Java/Spring Boot, React, React Native, Angular, Symfony, Next.js, NestJS, Node.js, TypeScript, PostgreSQL/Supabase.

What sets me apart: I seek to understand the 'why' before coding the 'how', I document properly, and I communicate clearly with stakeholders (I am used to direct client interaction).

Availability: missions in the evening and on weekends, remotely. Ideal for well-defined subjects, delivered asynchronously. Responsive in communication.
  • French

    Native or bilingual

  • English

    Conversational

  • Spanish

    Basic

  • Polish

    Basic

Remote only
Primarily works remotely

Experience

  • STEAMULO
    Project Engineer
    March 2024 - Today (2 years and 5 months)
    Hôtel de Ville, Paris, France
    I manage several projects from A to Z for clients like La Poste, INPI, or Printemps, from the initial client interaction to production deployment. I understand the need, I develop, I review, I deploy, I maintain.
    PHP External API Integration Content Integration React.js Java
  • STEAMULO
    Full Stack Developer
    September 2023 - February 2024 (5 months)
    Paris, France
    During this internship, I contributed to the continuous integration of the INPI's Guichet Unique website, following agile methodology. I worked on the project's continuous improvement, developing new features, resolving existing issues, and collaborating closely with the team to ensure the stability and efficiency of deployments.
  • Blanc Sec Media
    Full Stack Developer
    September 2022 - September 2023 (1 year)
    Paris, France
    During this mission, I contributed to the continuous improvement of an existing web project, making optimizations to ensure its stability and performance. I also developed new features according to the specific needs of the project and the provided mockups. My work included faithfully reproducing these mockups to ensure an optimal user experience. Additionally, I implemented SEO optimization actions to improve the site's visibility and performance in search results.

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Education

  • Baccalaureate, Scientific, graduationYear=2019
    Lycee Polyvalent Charles Baudelaire
    2019
    Baccalauréat, Scientifique
  • Pedagogical Training TC1, Educational Psychology, graduationYear=2020
    Ionis-STM, dual-skill school
    2020
    Formation pédagogique TC1, Psychologie de l'éducation

Skill set

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