We’re hiring a senior engineer to lead the evolution of our product platform — from API design to user interfaces and production reliability. You’ll join a product team where code quality and clear technical tradeoffs matter as much as shipping speed.

You’ll work day-to-day with design and product to turn business needs into simple, high-performing experiences. You’ll contribute to code reviews, architecture standards, and technical debt: we expect strong ownership, honest risk communication, and constructive collaboration.

Environment: hybrid teams (Paris office, regular remote), lightweight rituals (dailies, demos, retros), and modern tooling. On the stack you’ll work in TypeScript, React, and Next.js, with cloud deployments, observability, and systematic CI.

• 5+ years on high-traffic web products with a real performance bar
• Strong command of modern front-end (React) and solid API / performance culture (SSR, caching, Web Vitals)
• Professional English (written and spoken) for working with international teams
• Interest in mentoring and growing the team’s skills
• Sharp eye for UX detail, accessibility, and reliable user journeys