Expert Backend Engineer, Business Security

Responsibilities Design and implement high-performance, highly stable platform services Support data calculation needs for intelligent risk decision. Delivering high-quality and efficient data computing products Participate in offline and real-time data development to support risk analysis, model training, and other risk-related data needs Research, evaluate, and apply industry best practices and new technologies in anti-fraud system engineering Collaborate closely with product, algorithm/strategy, and platform teams to ensure smooth integration and evolution of the anti-fraud system. Requirements Bachelor’s degree or above in computer science or a related field 5 + years of full time working experience as a software/backend Engineer Must have prior experience in big data platforms such as Flink, Spark Proven experience designing and optimizing high-concurrency, high-availability backend services; Strong problem-solving skills with the ability to abstract complex business logic into scalable system designs; Effective cross-functional communication and collaboration skills, with a proactive and ownership-driven mindset; Proficient in at least one programming language, such as Go, Java Experience in leading teams, mentoring peers, or owning core modules in large-scale systems is a strong plus