Summary: Join our Swiss-based blockchain firm dedicated to advancing secure and scalable node infrastructure. As a core team member, you will optimize node performance and develop essential system plugins, leveraging your deep knowledge of JVM and distributed systems. Responsibilities: Optimize performance of blockchain nodes to ensure high reliability and scalability. Design and implement core system plugins to enhance infrastructure capabilities. Collaborate with cross-functional teams to integrate blockchain solutions. Conduct performance testing and debug issues to maintain system efficiency. Stay informed on industry trends and emerging technologies in blockchain development. Required skills: Proven experience with Java Virtual Machine (JVM) and its optimization. Strong expertise in developing and managing distributed systems. Proficiency in blockchain technologies and node infrastructures. Excellent problem-solving skills and ability to work collaboratively. Fluent in English; knowledge of other languages is a plus.