Senior Java Backend Engineer - Wallet & Blockchain
United States Digital Space LLC · Hong Kong, Hong Kong ·
- Seniority
- Senior
- Category
- Backend
- Experience
- 5+ years
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