Kylian V.

Backend & Application Developer | Creation of tailor-made solutions

Specializing in application development, I help companies design and build custom systems aligned with their business needs. From writing specifications to developing a website, application, or software from scratch, I bridge the gap between product scoping, architecture, and sustainable delivery: APIs, data, interfaces, and quality, with an iterative and documented approach.

My expertise

Custom website, application, and software development

Integration of functionalities into existing systems (front, back, API, database)

REST APIs and data modeling (SQL / PostgreSQL, Prisma ORM; NoSQL contexts if needed)

Software architecture (service breakdown, scalability) and optimization of critical paths

Technical guidance and structuring of specifications (functional + technical)

Front-end development: Angular (TypeScript, Angular Material); also experienced with React depending on the project

Back-end: Node.js / NestJS, third-party integrations (e.g., Stripe payments), securing workflows

Quality: Jest, Playwright (E2E) tests; JUnit / Mockito on Java stacks; Docker, GitLab CI/CD

Agile methods: Scrum, progress tracking (Trello, GitLab), regular deliveries

Why work with me?

End-to-end vision: from need to production, with documentation (including databases and deployment) to facilitate handover and maintenance

Strong back-end and automation orientation (CI/CD, operational scripts, reliability)

Integration of third-party APIs and evolution of existing systems without breaking them

Full remote, short or long-term missions, adaptation to your organization

Have a custom project? Contact me and let's ask the right questions together.