Senior Java Engineer — Web3 Backend & AI Agent Platform

United States Digital Space LLC is building the next generation of Web3 platforms, focusing on Wallet Earn and AI Agent Marketplace. You will design and scale back-end services, ensure security, and drive performance across multi-chain investment and asset workflows.
The role emphasizes strong Java fundamentals, modern Spring frameworks, and experience with distributed systems. On-site Hong Kong, with exposure to DeFi and on-chain integration work.
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