Senior Fullstack JavaScript Software Engineer – Sanofi

Coders Connect; Lyon; Hybride; EUR 45 000 - 65 000; Plein temps

Résumé du poste

A leading biopharma company in Lyon is seeking a Fullstack JavaScript Software Engineer to join their fast-growing digital team. This hybrid role involves building high-performance applications and designing cloud-native solutions on AWS. Ideal candidates should have strong skills in Node.js, AWS, and JavaScript, and will work in a collaborative, international environment, impacting millions of patients globally.

Prestations

Continuous learning opportunities

Supportive and inclusive culture

Qualifications

• Strong background in Node.js development.
• Experience with AWS technologies.
• Proven expertise in JavaScript.

Responsabilités

• Build and scale high-performance applications.
• Design and deliver cloud-native solutions on AWS.
• Lead and mentor agile squads.

Connaissances

Node.js

AWS

JavaScript

Outils

React.js

GraphQL

Description du poste

Overview

Coders Connect is proud to partner with Sanofi, one of the world’s leading biopharma companies, as they continue their mission to transform healthcare through cutting-edge digital innovation.

We’re looking for a Fullstack JavaScript Software Engineer to join Sanofi’s fast-growing digital team in Lyon. This is your chance to contribute to solutions that impact millions of patients globally, while working with modern technologies in a collaborative, international environment.

Location: Lyon, France – Hybrid (3 days onsite, 2 remote)

Language: English (essential for working in global squads)

What you’ll do

• Build and scale high-performance applications in a microservices architecture.
• Design and deliver cloud-native solutions on AWS.
• Lead and mentor within agile squads, driving collaboration and innovation.
• Work end-to-end across the stack, from React.js frontends to Node.js / GraphQL backends.

Tech you’ll use

• Frontend: React.js
• Backend: Node.js, GraphQL
• Cloud: AWS (Lambda, S3, RDS, SNS)

Why join Sanofi?

• Be part of a world-class healthcare leader driving digital transformation at global scale.
• Collaborate with diverse, international teams in a supportive and inclusive culture.
• Shape products that directly improve lives and change the future of healthcare.
• Enjoy opportunities for continuous learning, growth, and innovation.

This is more than just a developer role—it’s a chance to bring your skills to a mission-driven environment where technology meets healthcare for real-world impact.

If you’re ready to take your expertise to Sanofi and help build the future of healthcare, we’d love to hear from you.

Requirements

• Node
• AWS
• JavaScript