Senior Platform Software Engineer

Coders Connect; Lyon; Sur place; EUR 55 000 - 75 000; Plein temps

Résumé du poste

A leading software company in Lyon is seeking a Senior Software Platform Engineer to design, build, and optimize internal platforms. This role requires strong expertise in JavaScript and cloud platforms, particularly AWS. The ideal candidate will enhance developer productivity and contribute to significant healthcare solutions. Suitable for experienced engineers passionate about making a difference through technology.

Prestations

Impact on global health solutions

Strong engineering culture

Career development and autonomy

Qualifications

• 5–8 years of experience in software or platform engineering.
• Strong expertise in building internal tools or SDKs.
• Solid understanding of complex API systems.

Responsabilités

• Design, build, and optimize internal platforms to enhance productivity.
• Develop and maintain shared libraries and infrastructure components.
• Collaborate with teams to improve developer experience.
• Lead initiatives to adopt new technologies.

Connaissances

JavaScript / Node.js

Infrastructure as Code (Terraform, AWS CDK)

CI / CD pipelines

Cloud platforms (AWS preferred)

API systems and cloud-native architecture

English (Fluent)

French

Description du poste

Overview

Coders Connect has partnered with Sanofi, a global healthcare leader, to drive digital innovation across its M&S Accelerator.

We are seeking a talented Senior Software Platform Engineer to build powerful tools and infrastructure that empower development teams and accelerate innovation across the company.

Responsibilities

• Design, build, and optimize internal platforms that enhance developer productivity.
• Develop and maintain tools, shared libraries, and cloud-native infrastructure components.
• Collaborate with engineering squads to reduce technical overhead and improve DX (Developer Experience).
• Build reusable CI / CD templates, CLI tools, and infrastructure-as-code (IaC) modules.
• Lead proof-of-concept initiatives to improve platform standards and adopt new technologies.
• Provide cross-team support, technical documentation, and architectural guidance.
• Help define core abstractions and APIs that serve as building blocks across products.
• Advocate best practices for cloud-native development, reliability, and security.

Requirements

• 5–8 years of experience in software or platform engineering.
• Strong expertise in JavaScript / Node.js and experience building internal tools or SDKs.
• Hands-on experience with major cloud platforms (AWS preferred).
• Proficiency with Infrastructure as Code tools such as Terraform or AWS CDK.
• Familiarity with CI / CD pipelines and automation (GitHub Actions, ArgoCD, etc.).
• Solid understanding of complex API systems and cloud-native architecture.
• Ability to work cross-functionally with teams in a collaborative, international environment.
• Experience in system security, monitoring, and optimization is a plus.
• Fluent in English; French is a bonus.

Benefits

• Make a direct impact by enabling teams to build world-class healthcare solutions.
• Collaborate in a service-oriented, high-trust environment with a strong engineering culture.
• Enjoy career development, autonomy, and top-tier benefits in a global company.
• Work on meaningful projects that contribute to better health outcomes around the world.

If you're passionate about using technology to make a difference and excited to be part of Sanofi’s digital transformation, we’d love to hear from you.

Together, let’s chase the miracles of science and build the future of global health.