Senior Java Backend Engineer - Wallet & Blockchain
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Summary
Senior Java engineer owning core wallet backend modules for a multi-chain blockchain wallet — designing and optimizing address management, transaction flows, and on-chain interaction in a high-concurrency environment, with cross-team design collaboration.
United States Digital Space LLC is seeking a Senior Java Engineer to own core wallet backend modules in a high-concurrency, multi-chain environment. You will design, implement, and optimize address management, transaction flows, and on-chain interaction, ensuring reliability and performance across systems.
Ideal candidates have ~5–10 years of Java backend experience, strong fundamentals, and are comfortable driving complex designs and cross-team collaboration in a blockchain wallet context
