Job responsibilities: 1. Participate in building the Hemera blockchain data platform, and complete tasks such as data extraction, integration, and analysis according to business needs; 2. Participate in the development of B-end and C-end product functions, complete module design, coding, and testing work according to product requirements; 3. Able to submit high-quality code and complete development tasks on time according to the project plan. Responsible for writing backend and other related documents;