Staff Software Engineer (Paris)

This job offer is accessible to all, regardless of gender.

Please only apply if you have experience working professionally in English.

Job Title: Staff Software Engineer

• Location: Paris
• Hybrid: 3 days on site, 2 days remote

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. Ready to get started?

Your Impact

As a Staff 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 senior 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.

About you

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 of microservices, APIs, and cloud security.
• 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.
• Growth mindset with enthusiasm for learning new technologies and approaches.
• Innovation-focused with a willingness to experiment and introduce improved ways of working.
• Collaborative leadership that encourages open dialogue where team members feel safe to share ideas and learn from mistakes.
• You have a proven ability to spot organizational leverage points that unlock exponential productivity gains.

Your background

8+ 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.

Hiring Process

Online Technical Assessment: 40 min – showcase your skills.

Initial Interview: 45 min – Meet the team, share your experience.

Technical Deep Dive: 2 hours – Discuss cloud, APIs, and problem-solving.

Leadership Chat: 45 min – Meet our Head of Engineering.

At Sanofi, we empower engineers to take responsibility and accountability for what they build. You have the freedom of technical choice to drive innovation:

• Assumes responsibility for the success of projects, including meeting deadlines and quality standards.
• Takes ownership of technical decisions and leads efforts to overcome obstacles.
• Accountable for the overall performance and efficiency of engineering solutions.
• Actively participates in the design, development, and testing of critical components.

Growing Our Team and Culture

At Sanofi, beyond technical expertise, we value leadership that builds strong teams. You'll have opportunities to:

• Lead technical initiatives while fostering collaboration across teams.
• Shape our engineering culture through mentoring and knowledge sharing.
• Help grow our team by participating in hiring and talent development.
• Drive positive team culture that encourages innovation and inclusivity.

Why choose us?

We provide a highly collaborative environment, with an opportunity to work with a world-class team. Contribute to a company that is not only a leader in healthcare but also a pioneer in digital transformation, shaping the future of global health. Bring the miracles of science to life alongside a supportive, future-focused team. 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. Take good care of yourself and your family, with a wide range of health and wellbeing benefits including high-quality healthcare, 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.

Pursue Progress. Discover Extraordinary.

Progress doesn’t happen without people – people from different backgrounds, in different locations, doing different roles, all united by one thing: a desire to make miracles happen. You can be one of those people. Chasing change, embracing new ideas and exploring all the opportunities we have to offer. Let’s pursue progress. And let’s discover extraordinary together.

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.

Watch our ALL IN video and check out our Diversity Equity and Inclusion actions at sanofi.com!