Expert Backend Engineer (Machine Learning Server Parameter) - EGO team

Develop distributed Parameter Server (PS) systems for large-scale sparse model training and inference platforms in the search, advertising, and recommendation domains. The system should support high-throughput parameter read/write and update operations, handle hundreds of billions of features and TB-level sparse models, enable online real-time learning, and meet algorithmic needs such as feature admission and expiration.

Participate in the development of the one-stop machine learning platform, integrating the PS system into the platform to provide a user-friendly, stable, high-performance, and platform-level distributed parameter service system. Enhance the platform’s efficiency and usability, accelerating the model iteration process for algorithm teams.

Bachelor’s degree or above in Computer Science, Electronics, Automation, Software Engineering, or related fields, with at least 6 years of relevant experience. Proficient in C++ programming with strong low-level technical skills; adept at multi-threaded programming, lock optimization, memory pool, thread pool, template programming, GDB debugging, performance tuning, and RPC frameworks.

Familiarity with distributed PS systems, distributed system backend optimization, high-performance in-memory KV systems, KV storage systems based on NVMe-SSD, and high-performance client-server architecture systems is a plus. Highly passionate about computer technology, proactive in learning, with a strong spirit of in-depth research and hands-on practice.

Maintains high standards and strict requirements for delivered code; works with rigor and attention to detail. Strong team player with excellent continuous learning ability.