Developer

About us

At Sanofi, we chase the miracles of science to improve people’s lives. All our decisions are taken with our most important stakeholder in mind – the patients.

Having a rich history of innovation that dates back over 100 years, Sanofi more than ever stays true to its commitment to transform the practice of medicine by providing potentially life-changing treatments and the protection of life-saving vaccines to millions of people. This history includes the first treatments for many rare diseases and the establishment of standards of care in diabetes and cardiovascular disease. Sanofi’s commitment to public health has helped protect hundreds of millions of people from influenza every year for decades and pushed polio to the brink of eradication, while its scientific vision has led to breakthrough innovations in the treatment of inflammatory diseases.

~ 43.07Bn€ Net Sales FY23

~90 countries

~ 91K employees

~ 59 manufacturing sites

~ 20 R&D sites

About the job:

At Sanofi, we’re committed to providing the next-gen healthcare that patients and customers need. It’s about harnessing data insights and leveraging AI responsibly to search deeper and solve problems sooner than ever before. Join our Digital team as a Junior Backend Developer and you can help make it happen. Your job? Support the development of backend services in a modern, cloud-native environment and build the foundation for scalable, reliable healthcare platforms. You will work under the guidance of senior developers and grow into a key contributor within our backend engineering team.

We are an innovative global healthcare company with one purpose: to chase the miracles of science to improve people’s lives. Digital & Data is at the heart of Sanofi. Our ambition is to be the leading digital healthcare platform to develop and deliver medicine faster, enable healthcare professionals to improve treatments, and help patients improve their health. Ready to get started?

Main responsibilities:

• Develop and maintain backend services using Java SpringBoot (Java 17+), following best practices and established architectural patterns

• Contribute to the development and configuration of Spring Gateway for secure, scalable API routing

• Write clean, maintainable code with support from LLM tools (e.g., GitHub Copilot)

• Assist in system design, data modeling, and service modularization efforts

• Integrate and manage core services such as Redis, Elasticsearch, and PostgreSQL

• Learn to deploy, monitor, and troubleshoot services in Kubernetes, using kubectl and Helm under senior guidance

• Support GitHub Actions-based CI/CD pipelines for automated testing and deployment

• Collaborate with senior engineers in maintaining Infrastructure as Code using tools like Terraform

• Participate in Agile ceremonies and work closely with cross-functional teams to ship product features

• Follow engineering standards and participate in code reviews to ensure code quality and consistency

You are a software engineer that wants to collaborate with teammates to implement a new feature and help improve our products. Add us to our existing services or roll out a new service to support this feature. Identify and help troubleshoot an issue affecting users in one of our many regions of the world. Participate in defining new product requirements and design together with the product team.

About you:

Experience:

• 4+ years of backend development experience using Java SpringBoot

• Demonstrated expertise in generating high-quality code exclusively with LLM tools (e.g., GitHub Copilot, similar platforms)

• Familiarity with Spring MVC, Spring Data, and REST API development

• Basic understanding of Spring Gateway and microservices design

• Hands-on experience with relational databases (e.g., PostgreSQL, MySQL) and ORM tools (e.g., Hibernate)

• Exposure to Redis, Elasticsearch, and container technologies such as Docker and Kubernetes

• Familiarity with CI/CD concepts and tools like GitHub Actions

• Basic knowledge of Terraform or other Infrastructure as Code tools

• Interest in AI-assisted development workflows using tools such as GitHub Copilot

• Previous experience in healthcare, life sciences, or regulated industries is a plus

Soft skills:

• Strong “don’t reinvent the wheel” mindset and a willingness to adopt proven tools and patterns

• Ability to work independently on assigned tasks, while actively learning from others

• Collaborative and open communicator within cross-functional teams

• Curious, self-motivated, and eager to expand technical capabilities

• Comfortable with ambiguity and capable of working in a fast-paced environment

• Personal ownership of deliverables and problem-solving mindset

Technical skills:

We have a diverse stack and as long as you are willing to work with a microservices approach, we are open-minded about your technology preferences. You’ll have the ability to explore new technologies and strategies.

Some of the key tech we use:

• Backends: Java Spring Boot, RESTful APIs / GraphQL

• We use key components of cloud platforms: Lambda, S3, RDS, SNS and more of the core services

• Frontends: Vue.js with Vant

• Databases: PostgreSQL/MySQL, MongoDB, Redis

• CI/CD: GitHub Actions, Terraform, Helm

• You don't have to be a specialist in everything but willing to learn

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  Language Proficiency:

  • Fluent in English (written) forglobal collaboration
  • Comfortable in Chinese for daily work and team communication

  
  Education:

  MS in software engineering or computer science or equivalent

  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 digital ecosystem.

  
  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 things 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!