Blockchain Developer (Java)

IntellectEU is an international technology company focused on digital finance and emerging technologies. We give rising talent and industry veterans the space to explore, launch ideas, and collaborate closely with our clients. Over the past two decades, we have earned our expertise in financial technology, executing on hundreds of complex integrations and co-creating new digital asset platforms alongside our clients. We are looking for a Senior Software Engineer to join a high-caliber Web3 engineering team of our client. This is a deeply technical, hands-on individual contributor role. The successful candidate will own the delivery of core backend services supporting wallet operations, asset transfers, transaction orchestration, blockchain integrations, and event-driven workflows operating at scale within regulated financial environments. Location - US, remotely Responsibilities Implement and operationalize core backend services with fault tolerance, security, and scalability. Build API-first services integrating blockchain networks, third-party provider solutions, and internal systems with strong consistency guarantees. Implement secure service communications using cryptographic signatures, key management, and zero-trust architecture principles. Operationalize event-driven systems using Apache Kafka and asynchronous messaging patterns. Build highly available, strongly consistent, horizontally scalable services. Implement robust concurrent and asynchronous processing patterns