Accelerator - Software Engineer (Paris)

Location

Paris (Hybrid – 2 days remote, 3 days on-site)

Job Title

Senior Software Engineer

About The Job

At Sanofi Accelerator's R&D, we work at the intersection of science and software, partnering closely with product teams and scientists to revolutionize how we approach drug development. Our mission is to leverage cutting‑edge technology to innovate across the entire R&D pipeline, from initial research through clinical trials. We are an innovative global healthcare company with one purpose: to chase the miracles of science to improve people’s lives. Digital & Data are at the heart of Sanofi: our ambition is to be the leading digital healthcare platform to develop & deliver medicine faster, enable healthcare professionals to improve treatments and help patients improve their health.

As a Senior Software Engineer You Will

• Design and implement robust software solutions that accelerate research workflows and improve data analysis capabilities.
• Lead technical decision‑making for key projects, ensuring scalable and maintainable architectures.
• Mentor junior engineers and contribute to building a strong engineering culture.
• Set technical standards and drive adoption of best practices across the team.
• Support and collaborate with other teams to optimize workflows and eliminate bottlenecks.
• Advocate for best engineering practices.
• Surprise us.

Technical Requirements

• Experience with one or more of the major cloud providers such as AWS, GCP, or Azure.
• Infrastructure as Code – Terraform, AWS CDK, or similar.
• Proficiency in JavaScript / Node.js.
• Proficiency in React or similar framework.
• Experience building and maintaining microservice architectures, designing APIs, and cloud security best practices knowledge.
• CI/CD practices and DevOps principles.

Soft & Behavioral Skills

• Experience working with multiple teams to drive alignment and results.
• Service‑oriented, flexible, and a team player who takes initiative.
• Strong problem‑solving & critical thinking skills.
• Excellent written and verbal communication in English.
• Growth mindset with enthusiasm for learning new technologies and approaches.
• Innovation‑focused with a willingness to experiment and introduce improved ways of working.
• Surprise us with innovative approaches to exponentially increase our productivity.

Your Background

• 5+ years of experience (or equivalent knowledge). If you feel qualified, apply regardless of years of experience!
• Bachelor’s degree in Computer Science, Engineering, or equivalent experience is a plus.
• Experience in an innovative, fast‑paced environment.

Benefits

• Highly collaborative environment with a world‑class team.
• Contribute to a company that is a leader in healthcare and a pioneer in digital transformation, shaping the future of global health.
• Discover endless opportunities to grow your talent and drive your career, whether it’s through a promotion or lateral move, at home or internationally.
• Enjoy a thoughtful, well‑crafted rewards package that recognizes your contribution and amplifies your impact.
• Health and well‑being benefits, prevention and wellness programs, and at least 14 weeks’ gender‑neutral parental leave.
• Play an instrumental part in creating best practice within our manufacturing facility.

At Sanofi, we provide equal opportunities to all regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, or gender identity.

La diversité et l’inclusion sont les piliers de la manière dont Sanofi fonctionne et font partie intégrante des valeurs de la société. Nous respectons la diversité de nos collaborateurs, tout comme celle de leurs parcours et expériences. Afin de bénéficier de la richesse qu’apporte la diversité, Sanofi s’engage à donner l’exemple en matière d’inclusion et à favoriser un environnement de travail où les différences peuvent prospérer et contribuer à aider les patients à retrouver une vie meilleure.

Dans le cadre de son engagement diversité, Sanofi accueille et intègre des collaborateurs en situation de handicap.