AI Engineer（Junior Level）

Job description：

• Support the development and optimization of search relevance and ranking on the Mi.com platform

• Implement and maintain components of the search pipeline, including data processing, feature engineering, and model integration

• Develop data pipelines to process large-scale structured and unstructured data (e.g., query logs, product data)

• Apply basic machine learning and NLP techniques to improve query understanding and search relevance

• Assist in implementing embedding-based retrieval and semantic matching models

• Support offline evaluation and online experiments (e.g., A/B testing) to measure model performance

• Collaborate with senior engineers, product managers, and data analysts to deliver search improvements

Requirement：

• Proficiency in Java

• Basic understanding of search systems (e.g., indexing, retrieval, ranking)

• Familiarity with NLP techniques such as text processing, tokenization, and basic semantic matching

• Experience with Elasticsearch is a plus

• Good communication and teamwork skills. Ability to communicate in Mandarin and English, in order to support coordination and collaboration with Mandarin-speaking stakeholders, teams, and business partners across regional markets.