This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Blockchain Developer (Java) based in United States. This is a deeply technical, hands-on engineering role focused on building secure and scalable backend infrastructure for Web3 and digital asset applications.You will develop core services supporting wallet operations, asset transfers, transaction orchestration, blockchain integrations, and event-driven workflows.The role combines Java and Spring Boot expertise with distributed systems, cryptography, messaging, and blockchain technologies.You will work on highly available services designed for demanding and regulated financial environments.Strong emphasis is placed on security, observability, automated testing, and production-grade engineering practices.You will collaborate with experienced Web3 engineers and contribute to systems where reliability, consistency, and scalability are critical.The position offers an opportunity to work on complex blockchain infrastructure while helping shape modern financial technology solutions.