Lead Full Stack Product Engineer (React Native / MERN)
Company Description Founding Full Stack Product Engineer (React Native / MERN) — Build the Future of Sports Fandom with Significant Equity UpsideFanchize is building the future of sports fandom through fan identity, loyalty systems, collectibles, gamification, social engagement, and AI-driven experiences.We are looking for highly capable engineers who want to help build a next-generation sports and social platform from the ground up alongside an ambitious founding team.This is not a traditional corporate role. We are seeking builders who thrive in fast-moving startup environments, think like product owners, and want meaningful long-term upside through equity participation.Current Tech Stack• React Native• React.js• Node.js• Express.js• MongoDB• REST APIs• JWT Authentication• MERN ArchitectureResponsibilities• Develop and scale core platform features across mobile and web• Build clean, scalable frontend and backend systems• Collaborate closely with product, design, and leadership teams• Optimize application performance, responsiveness, and usability• Assist in improving architecture, workflows, and product scalability• Participate in product discussions and feature planning• Help create scalable systems for engagement, social interaction, collectibles, and fan experiences• Contribute to improving engineering processes and development velocityRequirements• Strong experience with React Native and/or MERN stack development• Experience building consumer-facing applications• Strong understanding of scalable frontend/backend architecture• Experience integrating APIs and third-party services• Ability to work independently and move quickly in startup environments• Strong communication and collaboration skills• Product-minded thinking beyond just engineering executionPreferred Experience• Social media or community platforms• Gaming or gamification systems• Marketplace platforms• Sports technology or fan engagement products• AI-assisted development workflows (Cursor, Claude, Copilot, Codex, etc.)• Real-time systems, notifications, media, or engagement toolsWhat We’re Looking ForWe care heavily about:• Product thinking• Ownership mentality• Speed and adaptability• Modern UI/UX awareness• Startup mindset• Ability to simplify complexity• Passion for building meaningful consumer productsCompensationDeferred compensation + equity participation available for the right candidates.About FanchizeFanchize is building a platform designed to transform how fans engage with sports, teams, loyalty, collectibles, rewards, identity, and digital communities.Our long-term vision sits at the intersection of:• Sports• Social media• Fan engagement• Gamification• Digital collectibles• AI-driven personalization• Community identity systems