Senior Frontend Engineer - Core Front Team (x/f/m)

What we do

Join a team of passionate and hardworking entrepreneurs to transform healthcare! 

Working in the tech team at Doctolib involves building innovative products and features to improve the daily lives of care teams and patients. We work in feature teams in an agile environment, while collaborating with engineering, design, and business teams.

What you'll do

We are looking for a Senior Software Engineer to join our Core Web Frontend Team and help us become the #1 digital and secure medical companion for patients. 

We are part of the Platform domain, whose mission is to build and maintain the common building blocks of our system with a "Platform as a Product" mindset. We abstract and simplify the use of these complex, critical components, enabling product teams to focus on their core mission: building products faster for healthcare professionals and patients.

More specifically, you'll join a team of engineers working on advanced frontend development topics and helping spread state-of-the-art workflows and practices.

As a Frontend Platform team, we support and empower all other Doctolib T&P teams to create and maintain optimized libraries and modular and performant applications.

We achieve our mission by providing core libraries that underpin our entire frontend architecture, by writing supporting tooling, improving Frontend Developer Experience and helping tame and reduce code technical debt organization-wide.

As a Senior Software Engineer, your responsibilities will include, but are not limited to:

• Design, develop, and maintain the application frameworks, tooling, and infrastructure that power Doctolib’s web and mobile frontends, ensuring performance, scalability, and reliability across our ecosystem.
• Own the “back of the front end”: the layer that connects UI components with underlying data, APIs, and application infrastructure. You’ll ensure seamless integration between design system components, client-side logic, and platform services.
• Collaborating with Feature teams ensuring that the platform aligns with the needs and requirements of our developers.
• Driving improvements by evaluating new technologies and processes, striving for enhancements, and implementing them as necessary to optimize our development practices.
• Defining best practices, known as "golden paths," for software development and deployment. This includes automation, testing, and security measures, in collaboration with our SREs, Security teams, and other domain experts.
• Developing and maintaining tools and services that facilitate the implementation of best practices. These resources will assist developers in building and deploying applications more efficiently.
• Leveraging AI-assisted development, (prompting, context engineering, automation) to help developers build, test, and deploy faster and smarter.
• Contribute to the technical vision and roadmap, identifying opportunities to improve scalability, CI/CD efficiency, and frontend modularization.
• Implementing changes mostly in TypeScript but with possible incursions outside of pure frontend (shell scripts, Ruby, Go, Java)

Who you are 

If you don’t meet all the requirements below but believe this opportunity matches your expectations and experience, we still encourage you to apply!

You could be our next team mate if you:

• Have 5+ years of experience in Engineering;
• Are eager to be hands-on with our stack: we use React and TypeScript, with Ruby on Rails/Java backends.
• Understand the value of testing your code;
• Have the ability to adapt to the most efficient technologies to solve issues;
• Have proven experiences developing efficient, maintainable and secure products;
• Have a strong understanding of JavaScript/TypeScript build systems and packaging pipelines (e.g., Vite, Webpack, Rollup, etc.);
• Are familiar with web performance optimization techniques and metrics (e.g., Core Web Vitals, bundle analysis, code splitting);
• Are comfortable speaking English in your day by day with the team.

Now, it would be fantastic if you:

• Have some experience with change management
• Have already set up or monitored significant technical migrations
• Have a great understanding of cloud infrastructures and security topics

What we offer

• Free comprehensive health insurance for you and your children
• Parent Care Program: receive one additional month of leave on top of the legal parental leave
• Free mental health and coaching services through our partner Moka.care
• For caregivers and workers with disabilities, a package including an adaptation of the remote policy, extra days off for medical reasons, and psychological support
• Work from EU countries and the UK for up to 10 days per year, thanks to our flexibility days policy
• Work Council subsidy to refund part of sport club membership or creative class
• Up to 14 days of RTT
• A subsidy from the work council to refund part of the membership to a sport club or a creative class
• Lunch voucher with Swile card

The interview process

• Recruiter Interview
• Feature Building interview
• System Design interview
• Behavioral Interview
• Offer!

Job details

• Permanent Position 
• Full time 
• Location: Levallois, Nantes
• Start Date: As soon as possible

If you would like to find out more about tech life at Doctolib, feel free to read our latest Medium blog articles! 

At Doctolib, we believe in improving access to healthcare for everyone - regardless of where you come from, what you look like. This translates into our recruitment process: Doctolib is an equal opportunity employer. We don't just accept diversity at Doctolib, we respect and celebrate it!

The more diverse ideas are heard, the more our product will truly improve healthcare for all. You are welcome to apply to Doctolib, regardless of your gender, religion, age, sexual orientation, ethnicity, disability, or place of origin. If you have a disability, let us know if there's any way we can make the interview process smoother for you! 

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