Senior Flutter Developer

Category: Development Are you a talented Senior Developer looking for a remote job that lets you show your skills and get decent compensation? Look no further than Lemon.io — the marketplace that connects you with hand-picked startups in the US and Europe. We are looking for a Senior Flutter Developer for one of our clients. From the client: We are developing a mobile application that transforms advanced STEM education into an engaging, accessible, and motivating experience. Rather than serving as a basic content delivery tool, the product combines structured learning paths, progression systems, interactive problem-solving, and a strong sense of personality. All of this is delivered through a polished, gamified mobile UX designed primarily for teens and young adults. Involvement: 25h/week Project type: Part-time Duration: 3–4 months Client timezone: (GMT -8:00) Pacific Time (US & Canada) Overlap: 3 hours This position is for U.S.-based candidates, but we also have other positions for Senior Software Engineers from 75+ countries. Requirements: • 4+ years of software development experience • 5+ years of experience with Flutter • Experience shipping iOS and Android apps • Experience with Firebase is a must • Strong understanding of app architecture, state management, performance, and backend integration • Ability to work through ambiguity and translate product ideas into real features • Interest in polished consumer products, interactive learning, or STEM-related applications   • Strong techni