Senior backend R&D engineer- Business growth direction

1. Undertake the core system research and development work in the fields related to international e-commerce merchants, deeply participate in the construction of multiple core systems, undertake the design, development and maintenance of the system, and continue to optimize and improve 2. Undertake the stability construction work, including global multi-computer rooms Scheduling, stability management, asset loss prevention and control, disaster recovery and downgrading, etc. 3. Have an in-depth understanding of the business, have good business modeling capabilities, and be able to combine business scenario abstraction to reasonably complete technology selection and promote implementation 4. Participation Guidance, training and Code Review for new employees, discovering and solving technical problems such as performance bottlenecks in the system, and promoting system architecture optimization.

1. Proficient in at least one mainstream programming language on the server side (such as: C/C++/PHP/Java/Golang, etc.), Excellent engineering and algorithmic capabilities 2. Familiar with commonly used middleware such as MySQL, Redis, MQ, and Task, and understand the basic principles of middleware. Applicants with experience in large-scale system design and development are preferred 3. Understand conventional architectural design ideas , including but not limited to servitization, asynchronous, high availability, scalability, etc., have systematic problem-solving thinking, and have good abstract thinking ability and domain modeling ability 4. Have keen insight into advanced technologies and face Have good ability to define, analyze and solve complex problems, and have good subjective initiative 5. Have led the construction and architecture design of medium and large complex business systems, and those with high concurrency and high availability design experience will be preferred .