<p>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 <a href="https://lemon.io/for-developers/?utm_source=workingnomads&amp;utm_medium=job_ad&amp;utm_campaign=supply_en_flutter_client_jun_2026_job_ad" rel="nofollow" target="_blank">Lemon.io</a> — the marketplace that connects you with hand-picked startups in the US and Europe.</p> <p>We are looking for a Senior Flutter Developer for one of our clients.</p> <p>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.</p> <p>Involvement: 25h/week<br/>Project type: Part-time<br/>Duration: 3–4 months<br/>Client timezone: (GMT -8:00) Pacific Time (US &amp; Canada)<br/>Overlap: 3 hours</p> <p>This position is for U.S.-based candidates, but we also have other positions for Senior Software Engineers from 75+ countries.</p> <p><strong>Requirements:</strong></p> <ul> <li>4+ years of software development experience</li> <li>3+ years of experience with Flutter</li> <li>3+ years of experience with Dart</li> <li>Experience shipping iOS and Android apps</li> <li>Strong understanding of app architecture, state management, performance, and backend integration</li> <li>Ability to work through ambiguity and translate product ideas into real features</li> <li>Interest in polished consumer products, interactive learning, or STEM-related applications</li> </ul> <p> </p> <ul> <li>Strong technical skills: as a Senior Developer, you are expected to be able to create projects from scratch and have a deep understanding of application architecture.</li> <li>Clear and effective communication in English — advanced ability to discuss business tasks, justify decisions, and communicate issues. Good self-presentation is also essential for upcoming client calls.</li> <li>Strong self-organizational skills — ability to work full-time remotely with no supervision.</li> <li>Reliability — we want to trust you and expect that you won’t let us and the client down.</li> <li>Adaptability and Flexibility — the ability to onboard the project promptly after accepting it and start delivering results quickly.</li> </ul> <p>Sounds good for you? Apply now and join the <a href="https://lemon.io/for-developers/?utm_source=workingnomads&amp;utm_medium=job_ad&amp;utm_campaign=supply_en_flutter_client_jun_2026_job_ad" rel="nofollow" target="_blank">Lemon.io</a> community!</p> <p><strong>NOT YOUR TECH STACK?</strong></p> <p>We have a variety of projects, so if you have 4+ years of commercial software development experience and are proficient in AI Agent Architecture, AI Automa