KeyStep

Senior Software Engineer - Java/Kotlin (x/f/m)

Doctolib
Paris, France
9 days ago
contract

Skills & Technologies

JavaRubyKotlinBackendSoftware DevelopmentRuby on RailsRailsScalabilitySOLIDGitHubRoadmapAILeadership

Job Description

What you'll do

We are looking for a Senior Software Engineer to join the Patient Online Booking feature team in the Patient Health Platform domain.

Our team is responsible for enhancing the booking experience for our 90 million patients, with over 300 million appointments expected to be booked this year. Empower your team to build better products, playing a pivotal role in the improvement of one of France’s most downloaded apps!

Your responsibilities include but are not limited to

Collaborate with product managers, designers, and other engineers to define and implement features to improve healthcare access for patients

Take a leading role within the team and contribute to establishing a technical vision that ensures the performance, security, and usability of the application, taking into account the future needs and the high scalability needs.

Bring your expertise and experiences to help us continuously improve the way we design, implement, test, and monitor high-quality features

Improving the performance of key features implemented in Java and Ruby on Rails, sometimes completely challenging the status quo

Taking leadership on delivering roadmap items (together with the team)

Contributing to establishing a technical vision and co-drive the creation of the roadmap for next quarters

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 are proactive, curious, collaborative and eager to learn

You are primarily a backend engineer with expert knowledge of Java and a good knowledge of Ruby on Rails (or similar frameworks). You have a solid understanding of web technologies and software development life cycle

You have a “user first” mindset and want to build a product focused on bringing value to its users, through secure, well-tested and pragmatic code

You embrace and champion AI-augmented engineering, leveraging AI coding tools (GitHub Copilot,

Company & Role Analysis

JobSeeker+
Likely perks
Private MedicalPension25+ Days HolidayStock OptionsLearning BudgetFlexible Hours
Culture & working style

Neutral 2–4 sentence summary of what working at this company is like, drawn from public reviews and press coverage. Tone, collaboration style, pace, benefits highlights.

Market salary range

£45,000 – £60,000 (Glassdoor, Levels.fyi, 2025)

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