1. Wallet Development Engineer (Important and Urgent): Base Beijing, salary budget CNY 15-20k/month Job Responsibilities: 1. System Design and Development - Design and develop a secure and reliable digital asset wallet system based on exchange business needs, including but not limited to mainstream digital currency wallets such as Bitcoin and Ethereum. -Participate in the architecture design of the wallet system, optimize system performance, and ensure stable operation of the wallet in high concurrency scenarios. -Implement the core functions of the wallet, such as recharge, withdrawal, collection, and cold transfer, to ensure the accuracy and timeliness of transactions. 2. Security Protection - Adopting advanced encryption technology and security mechanisms to ensure the security of user wallet assets, preventing security risks such as private key leakage and hacker attacks. -Conduct security vulnerability detection and repair, regularly conduct security audits of the wallet system, and promptly identify and resolve potential security issues. -Develop and improve wallet security strategies to ensure that the system complies with industry security standards and regulatory requirements. 3. Node Building and Maintenance - Responsible for building and maintaining blockchain nodes. 4. System maintenance - timely handling of problems that arise during the operation of the wallet system, providing technical support and solutions. -Monitor and analyze the performance of the wallet system, continuously optimize system performance, and enhance user experience. -Collect user feedback and business requirements, iterate and optimize the functionality of the wallet system.