Experienced Fullstack JS Developer (Skills-IC3) - Lyon - CDI

Full‑Stack JS Developer

Responsibilities

• Be capable of developing any task within the sprint
• Be capable of working on any part of the code within the scope of their team
• Define the technical architecture of any project within their scope, taking into account the project’s specific constraints (security, performance, load, deployment, service continuity, etc.)
• Conduct technical Proofs of Concept early in the project lifecycle to mitigate risks
• Advocate for technical refactoring during roadmap projects

Review and Testing

• Be able to review any pull request within your team
• Be able to test any pull request within your team
• Be able to review most cross‑functional pull requests that impact your team’s scope
• Create load testing scenarios and implement them

Support

• Be able to manage all bugs within your team’s scope
• Be able to submit pull requests to resolve cross‑functional bugs
• Communication
• Understand the scopes of other teams to assess the impact of your team’s projects on them
• Introduce improvements (best development practices, refactoring) to the rest of the technical team and clearly communicate them to the rest of the Tech team with the goal of promoting their adoption

Estimation

• Provide “high‑level” estimates for roadmap projects during estimation sessions prior to roadmap definition
• Propose functional alternatives to your Product Owner to achieve a better balance between functional coverage and technical cost

Mentoring

• Mentor junior developers (IC1 and IC2) on your own team

Other

• Have in-depth knowledge of your team’s functional use cases
• Proactively stay informed about upcoming projects and cross‑team changes led by other Tech teams

Profile

• You have at least 4 years of experience (including work‑study programs) in full‑stack Node.js development and a front‑end framework (Vue.js, React, etc.)
• You hold an engineering degree or a Master’s degree in Computer Science
• You are based in Lyon or the surrounding area, as we work from the offices from Tuesday till Thursday
• You enjoy programming and producing high‑quality code
• You want to take pride in what you do every day
• You view development as a team effort
• You are fluent in English
• You are comfortable explaining your work and its functional implications to people without a technical background
• You consider yourself primarily a backend developer
• You have prior experience with complex data management and data processing projects

Must Haves

• You have at least 4 years of experience (including work‑study programs) in full‑stack Node.js development and a front‑end framework (Vue.js, React, etc.)
• You hold an engineering degree or a Master’s degree in Computer Science
• You are based in Lyon or the surrounding area, as we work from the offices from Tuesday till Thursday
• You enjoy programming and producing high‑quality code
• You want to take pride in what you do every day
• You view development as a team effort
• You are fluent in English
• You are comfortable explaining your work and its functional implications to people without a technical background
• You consider yourself primarily a backend developer
• You have prior experience with complex data management and data processing projects

Nice To Haves

• You’re active in the tech community through meetups or conferences
• You’re fluent in a language other than French or English (German, Spanish, Italian, Swedish, etc.)
• You have a particular interest in statistics and data visualization

Technical background

• Backend : Node.js
• Frontend : Vue.js
• Others technos : My

  SQL, Elastic

  Search, Redis, Typescript, Vitest
• Tools : Github, Github actions, Asana