Senior Fullstack Software Engineer

Join our team as a Senior Fullstack Software Engineer, where you'll drive growth through experimentation and own features end to end. You'll work with modern technologies like React.js, Next.js, TypeScript, GraphQL, and Apollo Client, while also extending backend services and optimizing performance. If you're a proactive builder with a passion for customer impact and clean code, this is the perfect opportunity for you.

• Conduire la croissance en concevant, construisant et exécutant des expériences tout au long du parcours utilisateur.
• Posséder des fonctionnalités de bout en bout, de l'hypothèse à la production, en travaillant sur l'ensemble de la pile technologique.
• Utiliser des outils d'IA et des modèles de langage pour itérer rapidement et construire des systèmes, tout en conservant une compréhension totale du code généré.

• You are a proactive builder and a continuous learner. You thrive on shipping products that matter. You always find a way to reach the goal
• Whether your background is frontend or fullstack, we care most about mindset. With AI in your toolkit, you are ready to work on anything: you'll follow a problem wherever it lives in the stack and solve it in the right place
• If you get excited by A/B tests, funnels, and the exact precision needed when you build products around Time itself, you'll find a stimulating environment here
• You'll thrive here if you are a builder who values customer impact as much as clean code, and who is happy to work on anything to reach the goal
• The AI Mindset: You are AI savvy. LLM and agentic tools are part of how you work every day, and you use them to deliver across the whole stack
• The Toolkit: Professional experience with JavaScript, TypeScript, React.js, and Next.js, and comfort working in older JavaScript and Redux code
• The Fullstack Mindset: Frontend or fullstack, you are curious beyond your primary area, and you can read, debug, and change code across the stack
• The Data Layer: Experience building production ready applications with client side data fetching via GraphQL (Apollo)
• The Growth Experience: Proven, hands on experience with growth topics and product experimentation, such as A/B testing, funnel optimization, and activation or conversion work
• The Foundation: A Bachelor's in Computer Science, a related technical field, or equal practical experience
• The Backend Edge: Professional experience building backend services, ideally in Java, and designing GraphQL APIs
• The Distributed Layer: Practical experience with microservices and event driven architectures built on Kafka. Go is a plus
• The Data Craft: Comfort with experimentation platforms and feature flags such as GrowthBook, tracking plans such as Avo, product analytics, and the statistics behind a sound test
• The Billing Side: Experience with subscription billing and payments, ideally Chargebee
• The Architecture: A strong architectural mind for component isolation, server side rendering (SSR), and static site generation (SSG) strategies
• The Craft: Experience with frontend performance optimization, responsive design, and modern browser APIs