Software Engineer - Front

As a Senior Software Engineer, your goal will be to design and deliver high-impact full-stack features, from Kotlin backend development to React frontend experiences, while accelerating the way we build software through AI agents.

You will report to Nicolas and join the Tech team. You will take ownership of complex technical challenges, make the right trade-offs between speed, simplicity, and robustness, and directly contribute to building services capable of handling high loads.

Key Responsibilities

• Design and deliver high-quality full-stack features, from Kotlin backend services to React.js frontend applications.
• Write code using AI agents and help build a true agentic software factory.
• Take ownership of complex topics related to software design, architecture, and service reliability.
• Design solutions capable of running in production at scale.
• Continuously improve development practices and Engineering team efficiency through agentic AI.
• Make pragmatic technical decisions, taking business impact, simplicity, and execution speed into account.
• Share your standards, learnings, and technical convictions to help the team grow.

About You

What we’re looking for:

• Several years of full-stack development experience, with strong hands-on expertise in Kotlin on the backend and React.js on the frontend.
• Proven experience deploying and operating high-load services in production.
• Hands-on experience writing code with AI agents or AI-assisted development tools.
• The ability to reason about architecture, reliability, and technical trade-offs.
• Strong business acumen: you understand the impact of your decisions and know how to prioritize what truly matters.
• Fluency in both French and English, spoken and written.

What will set you apart:

• Strong ownership: you tackle problems head-on rather than waiting for permission.
• An entrepreneurial mindset, strong adaptability, and a willingness to thrive in ambiguous environments.
• Independent thinking: you know how to reframe problems and find simple, original, evidence-based solutions.
• A strong focus on impact, with the ability to make clear trade-offs and apply the 80/20 principle.
• Positive energy, a collaborative mindset, and a desire to help the entire team succeed beyond your own scope.
• Intellectual curiosity, the ability to learn quickly, and a genuine desire to keep improving.