Senior Staff Software Engineer – Global eCommerce

Sanofi; Barcelona; On-site; EUR 69,000 - 104,000; Full time

Job summary

Sanofi is seeking a Staff Software Engineer for the Global eCommerce Software Engineering team in Barcelona. You will shape the technical future, drive strategy across multi‑team domains, and deliver scalable architectures for global platforms connecting patients with medicines.

You will mentor senior engineers, champion cloud-native practices, and partner with product and business teams to maximize impact while ensuring robust security and performant systems on a worldwide scale.

Qualifications

• Proven track record leading technical initiatives in a fast-paced environment.
• Strong communications and mentoring skills.
• Experience with cloud-native development and cybersecurity practices.

Responsibilities

• Drive technical strategy across multiple teams and domains.
• Own critical technical decisions delivering high-quality solutions on time.
• Champion best practices in cloud-native development, microservices, APIs, CI/CD, and cybersecurity.
• Mentor and grow senior engineers, fostering knowledge sharing and continuous improvement.
• Bridge engineering, product and business teams to align technical direction with goals.
• Represent engineering in conversations with external partners and vendors.

Skills

JavaScript/TypeScript

React

Object‑oriented languages

Cloud platforms

Infrastructure as Code

Microservices

API design

CI/CD

Observability (DataDog)

Automated testing

English language

Education

Computer Science / Engineering background

Tools

AWS

GCP

Azure

Job description

Sanofi is seeking a Staff Software Engineer for the Global eCommerce Software Engineering team in Barcelona. You will shape the technical future, drive strategy across multi‑team domains, and deliver scalable architectures for global platforms connecting patients with medicines.

You will mentor senior engineers, champion cloud-native practices, and partner with product and business teams to maximize impact while ensuring robust security and performant systems on a worldwide scale.