Job Description and Responsibilities- Responsible for API design, development, optimization and maintenance of back-end services.- In-depth study of the codes and operating principles of mainstream digital assets.- Participate in daily development requirements review, product function design, transform design and product requirements into high-quality code.- Participate in the design, implementation and optimization of the back-end service infrastructure.Qualifications and Skills- Bachelor degree or above in computer related majors.- 3+ years of back-end development experience.- Familiar with one or more programming languages such as Python/Golang/C++/Java, with solid programming skills, a good data structure, and algorithm foundation.- Familiar with common components such as PostgreSQL, Redis, MQ, Docker, and understand the basic principles.- Understanding architecture design ideas such as service-oriented, asynchronous, high-availability, and scalability, and experience in K8S construction and use is preferred.- Familiar with the principles of mainstream public chains such as Bitcoin and Ethereum, and experience in cryptography, encryption algorithms and network security is preferred.- Good coding habits and development document writing habits, pay attention to the maintainability of the code.- Have a strong sense of responsibility, communication skills and the ability to receive feedback.