Staff Software Engineer - Business Performance (x/f/m)

Doctolib; Nantes; Hybrid; EUR 120,000 - 180,000; Full time

Benefits offered by this job

Health insurance (family)

Lunch vouchers

Flexible remote days

RTT days

Relocation support

Job summary

Doctolib in Nantes is seeking a Staff Software Engineer to join the Workstations team within Business Performance. You will build modular frontend modules, integrate AI into workflows, and connect systems like Salesforce and billing into maintainable services.

You’ll influence architecture, security, and multi-country scalability while partnering with Sales, Support, and PMs. You should have 8+ years of software engineering experience, be fluent in English, and comfortable across stack with

Qualifications

• 8+ years of experience as a Software Engineer with strong foundations in software and system design at scale.
• Comfortable working in a React and Java or Ruby on Rails environment and hands-on across the stack as needed.
• Practical experience integrating LLMs in production—prompting, evaluations, latency and cost trade-offs, agents, tool calling or MCP.
• Able to work closely with business users, translating real workflows into clean product experiences.
• Data protection and privacy aware; apply security best practices.

Responsibilities

• Build and ship reusable frontend modules with clear APIs or MCPs for modularity across appShell.
• Integrate AI capabilities into real workflows: live transcription, intent detection, summarisation, CRM auto-filling, with proper permissions and audit trail.
• Connect and extract logic from existing systems (Salesforce, core platform, billing, telephony) and expose as standalone services.
• Guide make-or-buy decisions by evaluating third-party tools against scale, security, and multi-country requirements.
• Partner with end users and Product Managers through interviews and prototypes to convert complex workflows into simple products.
• Define and track quality metrics and drive continuous improvement; lead technical design and code reviews.
• Rethink the SDLC with AI at its core: automated code review and ensuring agents have the right context.

Skills

Senior software engineer experience

English fluency

LLMs in production

Business-facing collaboration

Tools

React

Java

Ruby on Rails

Job description

Join our mission, join Doctolib!

Doctolib is growing, and we are looking for a Staff Software Engineer to join the Workstations teams in Business Performance.

Your mission will be to eliminate administrative overhead for Doctolib's customer-facing teams (Sales, Account Management, and Product Support) so that every minute spent with a customer goes entirely to conversation and expert judgment.

You will work in a feature team developing the Workstations: a single, modular interface that brings together information from all our systems and lets teams act in all of them. From planning who to contact, to preparing with an instant customer brief, to live AI suggestions and automatic follow-up, you will contribute directly to transforming how thousands of colleagues work and, through them, the quality of service delivered to healthcare professionals and patients.

Working in the tech team at Doctolib means building innovative products and features to improve the daily lives of care teams and patients.

Your impact

Your Responsibilities Include But Are Not Limited To

• Build and ship reusable frontend modules, each exposed behind a clear API or MCP, ensuring strong modularity across different appShell
• Integrate AI capabilities directly into real workflows: live transcription, intent detection, summarisation, CRM auto-filling, and agents operating with the same permissions and audit trail as the UI
• Connect and extract logic from existing systems (Salesforce, core platform, billing, telephony) and expose them as standalone, maintainable services
• Drive make-or-buy decisions by evaluating third-party tools against Doctolib's technical criteria for scale, security, and multi-country requirements
• Partner closely with end users (Sales, Account Management, Support) and Product Managers through user interviews, prototypes, and rapid feedback loops to turn complex workflows into simple products
• Define and track quality metrics - latency, accuracy of AI suggestions, share of tasks completed within the workstation - and use them to drive continuous improvement
• Raise the bar for the team through rigorous code reviews, technical design leadership, and mentoring
• You will also help rethink our SDLC with AI at its core: automated code review, and making sure our agents always have the right context to do useful work

Life at Doctolib Tech

• Our solutions are built on a single fully cloud-native platform that supports web and mobile app interfaces, multiple languages, and is adapted to country and healthcare specialty requirements.
• Our stack is composed of Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native.
• We leverage AI ethically across our products to empower patients and health professionals. Discover our AI vision here.

Want to learn more about our tech culture and environment? Visit the Doctolib Tech site.

Who You Are

Before you read on: if you don't have the exact profile described below, but you feel this job description matches your skill set, we still encourage you to apply.

You Could Be Our Next Team Mate If You

• Have 8+ years of experience as a Software Engineer, with strong foundations in software and system design at scale
• Are comfortable working in a React and Java or Ruby on Rails environment and open to being hands-on across the stack as the project demands
• Have practical experience integrating LLMs in production — prompting, evaluations, latency and cost trade-offs, agents, tool calling or MCP — or a strong drive to get there fast
• Are comfortable working close to business users, translating messy real-world workflows into clean, intuitive product experiences
• Take data protection and privacy seriously: you work with sensitive data and apply security best practices as a matter of course
• Are fluent in English

It Would Be Fantastic If You

• Have contributed to internal tooling or workflow automation products at scale
• Have experience with event-driven architectures and integrating with CRM systems (e.g. Salesforce)
• Are familiar with telephony integrations or real-time transcription pipelines

What We Offer

• Free comprehensive health insurance (basic package) for you and your children
• 25 days of paid vacation per year, plus up to 14 days of RTT
• Free mental health and coaching services through our partner Moka.care
• Work from abroad for up to 10 days per year thanks to our flexibility days policy
• Lunch vouchers (Swile card) worth €8.50 per working day, with €4.50 covered by Doctolib
• A subsidy from the work council to refund part of the membership to a sport club or a creative class
• 50% reimbursement of your public transport subscription
• ParentCare Program: Enjoy full salary coverage (100%) during your first month of birth leave and 75% during the second, covered by Doctolib
• Enrollment in Doctolib's long-term employee value sharing plan called DoctoGrowth
• For caregivers and workers with disabilities, a package including an adaptation of the remote policy, extra days off for medical reasons, and psychological support
• Relocation support in case of international mobility
• Access to the best AI tools for coding, development and dedicated training

The interview process

• Recruiter Interview
• Feature Building Interview
• System Design Interview
• Behavioral Interview
• At least one reference check

We want your experience to be clear, respectful, and transparent. Learn more about our hiring process on our candidate experience page.

Job details

• Permanent position
• Tech stack: React, Java, Ruby on Rails
• Full-time
• Nantes
• Hybrid work setup (up to 2 remote days per week)
• Start date: as soon as possible

We welcome everyone

At Doctolib, we are committed to improving access to healthcare for everyone. This translates into our recruitment process. We evaluate candidates based solely on qualifications and motivation, without any form of discrimination.

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.

To ensure equal opportunities, we invite you to exclude personal information (e.g. pictures, age) from your applications. If you require any accommodation, please let us know for support during the hiring process.

Join us in building the healthcare we all dream of!

Your data privacy

All information provided is processed by Doctolib for application management. For data processing details, click here: France Please contact hr.dataprivacy(at) doctolib.com to exercise your rights.