Sanofi

Software Development Engineer

Sanofi
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23 hours ago
Barcelona, SpainSenior

Responsibilities

  • Build and ship full-stack features and services across React, TypeScript, Node.js, Java, APIs, and databases.
  • Author technical design documents, propose options and trade-offs, and help refine team standards.
  • Deliver high-quality software through unit, integration, and end-to-end testing, CI/CD pipelines, and code reviews.
  • Build secure, performant microservices and REST and GraphQL APIs with reliable service communication, data consistency, and fault tolerance.
  • Translate business needs into technical tasks with Product Owners and Designers.
  • Implement observability and monitoring, participate in on-call rotations, conduct root cause analysis, and improve reliability.
  • Support junior engineers and new joiners through code reviews, documentation, and team demos.

Requirements

  • 5+ years of professional software engineering experience building and shipping full-stack web applications.
  • Proficiency with JavaScript or TypeScript and Node.js, plus at least one object-oriented language such as Java, Python, or C++.
  • Solid experience with React or an equivalent framework, RESTful APIs, microservices, cloud platforms, Docker, and CI/CD.
  • Experience with SQL and/or NoSQL databases and observability tools such as DataDog or Grafana.
  • Ability to communicate clearly with technical and non-technical stakeholders and demonstrate ownership and pragmatic problem-solving.
  • Fluent written and verbal English.
  • Experience in B2B, enterprise, or regulated industries is preferred.
  • Infrastructure as Code with Terraform or CloudFormation, Kubernetes, and SAP Commerce Cloud or Salesforce Commerce Cloud experience are preferred.

Benefits

  • Hybrid flexibility in Barcelona.
  • Competitive compensation and eligibility for company employee benefit programs.
  • Opportunities for professional development in a collaborative, inclusive, and people-first culture.
  • Mission-driven work supporting healthcare professionals and patients across multiple markets.
Sanofi

About Sanofi

10,000+ employees

Sanofi is a global biopharmaceutical manufacturer that discovers, develops, and commercializes prescription medicines, vaccines, and consumer healthcare products for patients and healthcare systems worldwide. Its portfolio and pipeline span immunology, oncology, rare diseases and blood disorders, neurology, diabetes, cardiovascular conditions, and vaccines. The company is publicly traded and headquartered in Paris, France, with large-scale R&D and manufacturing operations across Europe, the Americas, and Asia.

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