Social network you want to login/join with:Technical Co-Founder (Full-Stack – Flutter, NestJS, (TypeScript), Crawley, West Sussexcol-narrow-leftClient:CHAAMOLocation:Crawley, West Sussex, United KingdomJob Category:Other-EU work permit required:Yescol-narrow-rightJob Views:5Posted:16.06.2025Expiry Date:31.07.2025col-wideJob Description:CHAAMO is seeking a Technical Co-Founder (Full-Stack) to help finalize our marketplace app and prepare it for launch. The platform is already built using Flutter and NestJS (TypeScript), and is nearly ready for testing. We're now looking for a hands-on technical partner to lead final development, optimize the stack, and help take CHAAMO to market.This is an equity-only position for someone entrepreneurial who’s excited to co-own and co-launch a product with strong traction in an underserved niche.About CHAAMOCHAAMO is a mobile-first marketplace designed specifically for trading card collectors and sellers, from Pokémon and Magic: The Gathering to Yu-Gi-Oh! and sports cards. The current online selling experience is fragmented across general-purpose platforms, social media, and forums. CHAAMO consolidates everything into one intuitive mobile platform.With built-in listings, eBay API support, direct messaging, shipping, and payment features, we’re making buying and selling cards faster, easier, and community-driven.What You’ll DoAs a full-stack Technical Co-Founder, you'll take ownership of both mobile and backend development:Finalize and Launch the App: Complete development of the existing Flutter app (iOS and Android), polish features, fix bugs, and prepare for testing.Own Backend Systems: Manage and extend our NestJS/NodeJS backend and ensure smooth data handling and business logic.Handle DevOps and Infrastructure: Use AWS (EC2, Lambda, RDS, SNS) to maintain and scale the system.Integrate APIs: Finalize integrations with eBay APIs, and implement Shippo for shipping and PayPal for transactions.Collaborate on Product Strategy: Work alongside the founding team to prioritize features and shape the post-launch roadmap.Prepare for Growth: Ensure systems are built to handle increased user traffic and data as the marketplace scales.Frontend/Mobile: Flutter (iOS & Android)Infrastructure: AWS (EC2, Lambda, RDS, SNS)External Integrations: eBay APIs, Shippo (shipping), PayPal (payments)Who You AreWe’re looking for someone with strong technical foundations and a builder’s mindset. You might be a solo developer, tech lead, or ex-startup engineer looking to step into a co-founder role.You should:Have built and launched Flutter apps for both iOS and AndroidKnow how to work with APIs, especially marketplace and logistics/payment APIs (e.g., eBay, Shippo, PayPal)Understand marketplace app architecture, listings, messaging, user accounts, search, etc.Be self-directed, organized, and ready to lead all aspects of technical developmentBe excited to join an early-stage venture and build something meaningful with real users in mindWhat You’ll GetCo-Founder Equity: Join at a foundational level and share in the long-term success.Real Product, Not Just an Idea: Skip the MVP phase, we’ve already built the app and are nearly ready to test.Tech Leadership: You’ll define our stack, systems, and long-term technology direction.
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