Nils Layet

/* Web Developer | Tech Lead */

Through my experience in startups, I've built a deep understanding of web standards, along with the methodologies needed to design quality products and mentor junior developers.

I'm open to remote opportunities, to help accelerate the success of a product with strong social impact.

Experience

05-2022 - 04-2026(4 years)

Lead Frontend Developer

•Koyeb
  • Design and development of Koyeb's control panel (app.koyeb.com), a cloud infrastructure provider.
  • Built management interfaces: complex forms, metrics graphs, real-time logs, command palette, authentication, third-party service integration (WorkOS).
  • Contributed to product design in close collaboration with a PM, a designer, and the backend team. Wrote functional and technical specifications.
  • Led a full frontend rewrite: integrated a design system and a new navigation. Significantly reduced development time for new features.
  • Set up unit testing (vitest) and end-to-end testing (playwright), a CI/CD pipeline, and code maintainability best practices.
  • Built the koyeb.com website, the MCP server, and a TypeScript SDK to deploy sandboxes.
  • Open-source code: github.com/koyeb/control-panel.
  • typescriptTypeScript
  • reactReact
  • tailwindcssTailwind
  • nextdotjsNext.js
  • nodedotjsNode.js
  • githubGitHub
  • koyebKoyeb
02-2019 - 04-2022(3 years, 3 months)

Full-Stack Developer

•Gojob
  • Design and development of key backend and frontend features for Gojob, a digital temp staffing platform.
  • Built a billing engine and an internal LMS for training temp workers.
  • Worked in a squad (PM, designer, 4-5 devs), with a product-oriented mindset.
  • Led a working group on frontend topics: architecture, micro-frontend structuring, technical decision-making.
  • Mentored a junior developer during their final internship.
  • Adopted and promoted best practices: TDD, clean architecture, raising awareness of DevOps concerns.
  • typescriptTypeScript
  • nodedotjsNode.js
  • nestjsNestJS
  • reactReact
  • reduxRedux
  • nextdotjsNext.js
  • postgresqlPostgreSQL
03-2017 - 08-2018(1 year, 6 months)

Full-Stack Developer

•Sparted
  • Development and maintenance of Sparted's products, a B2B e-learning platform.
  • Introduced automated testing, an initiative later adopted by the team.
  • First experience on a large-scale project, learning agile practices and teamwork.
  • nodedotjsNode.js
  • loopbackLoopback
  • Mithril
  • AWS

Education & Training

2025

React.gg Training

•ui.dev
  • Deep dive into modern React, gaining a thorough mastery of the framework, its philosophy, and its ecosystem.
2021

TDD and Clean Architecture Training

•Wealcome
  • Deepened software design best practices: refactoring, modular design, reducing accidental complexity.
2012 - 2017(5 years)

Master's Degree in Computer Science

•EPITA
  • Engineering program, Multimedia and Information Technology track (information systems, web and mobile development, UI/UX).
2009 - 2012(3 years)

High School Diploma (Science Track)

•Lycée J. Siegfried

Projects

01-2024 - Present(2 years, 9 months)

Local Exchange Trading System

  • Development of the management platform for my town's local exchange trading system, a project with strong social impact.
  • Volunteer contribution combining value for the community with technical exploration (architecture, best practices, modern tools).
  • Open-source code: github.com/bopzor/sel
  • typescriptTypeScript
  • solidSolidJS
  • tailwindcssTailwind
  • nodedotjsNode.js
  • expressExpress
2019 - 2023(4 years)

Shakala

  • Design and development of a discussion platform fostering constructive, well-argued exchanges.
  • Personal project to experiment with and put into practice knowledge gained through technology watch.
  • typescriptTypeScript
  • reactReact
  • nestjsNestJS
  • postgresqlPostgreSQL