Full Stack Developer (Ror & React Native)

About Kolsquare Kolsquare is Europe's leading influencer marketing platform, a data‑driven solution that helps brands scale KOL marketing strategies and build authentic partnerships. Our Mission Kolsquare is a certified B‑Corp and a Benefit Company. Our purpose is to give everyone access to the power of Influencer Marketing, positively impacting the world. Role: Senior Full Stack Developer You will build and ship a B2 C product for next‑generation content creators, working closely with development, design and product teams. Your Responsibilities Full Stack Development: Build and maintain features end‑to‑end, from Rails API endpoints to React Native screens and components, ensuring a seamless experience across i OS and web. Architecture & Code Quality: Contribute to architecture decisions, advocate for simplicity and maintainability, and uphold high standards through code reviews, testing and clean abstractions. Platform Integrations: Work with social media APIs (Instagram, Tik Tok, Fac...