Senior FullStack Developer

Senior Full Stack Developer — Web3 Remote — International | Full-time Salary - up to 90k USD About the opportunity G2i is recruiting a Senior Full Stack Developer for Moonberg, a Zug-based intelligence lab building proprietary market intelligence and infrastructure for decentralized markets. Moonberg processes more than 700 real-time data streams, from on-chain activity to market narratives, to generate actionable insights. Its consumer product, Obzidian, is an agentic trading terminal designed to research, monitor, and execute across markets around the clock. We’re looking for a highly experienced engineer who can own architecture and implementation across frontend, backend, and Web3 integrations. You should be comfortable scaling data-intensive systems, solving production problems, and making technical decisions with substantial autonomy. What you’ll do Own full stack development across React interfaces, Node.js services, and Web3 integrations. Build and scale decentralized applications integrating wallets, DeFi protocols, and on-chain data. Integrate Web3 libraries, SDKs, packages, and APIs into reliable product workflows. Design systems for performance, security, scalability, and interoperability. Build and improve infrastructure supporting large volumes of real-time market and blockchain data. Investigate production issues and improve system reliability. Collaborate with experienced engineers on architecture and research into emerging technologies. Take features from technical design through implementation, deployment, and production support. What you’ll bring 10+ years of professional software development experience. At least 3 years of full stack development experience with a strong Web3 focus. Strong proficiency in TypeScript, React, and Node.js. Hands-on experience shipping Web3 applications or integrations into production. Experience integrating wallets, DeFi services, on-chain data, and third-party Web3 packages or APIs. Experience designing and scaling d