NIO

知识平台算法专家(RAG & 知识图谱方向)

NIO  •  Remote  •  17 days ago
Expired
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Job Description

知识平台算法专家(RAG & 知识图谱方向)上海社招全职数字技术本科及以上5-7 年职位描述岗位核心使命
深度融合 LLM 与知识图谱技术,构建企业级 GraphRAG 架构。通过本体建模与高精度检索技术,解决大模型在复杂专业领域下的幻觉问题,打造工业级的知识服务引擎。
主要职责
RAG 架构优化:负责企业级 RAG(检索增强生成)系统的全链路研发。针对长文本及复杂知识,优化文档切片 (Chunking) 策略、多路召回 (Retrieval) 及 重排序 (Reranking) 算法,提升问答的准确性与归因能力。
知识中枢建设:负责领域本体论 (Ontology) 建模,设计高扩展性的 Schema;利用 LLM 实现自动化知识抽取(实体、属性、三元组),构建高质量结构化知识库。
底层存储与检索:负责基于 Milvus/Zilliz 的向量数据库与 Elasticsearch 的全文检索集成,设计向量-标量混合检索方案,优化海量数据的检索延迟与相关性。
推理与应用落地:探索图增强检索(GraphRAG)、多步推理链(CoT)在知识平台中的应用,负责从非结构化数据到结构化知识转化的全流程算法迭代。职位要求1. 核心技术能力
RAG 深度栈:精通常见的 RAG 优化手段(如 HyDE, Parent-Document Retrieval, Query Decomposition 等),对向量化模型(Embedding)和重排模型(Cross-Encoder)有实战调优经验。
存储与引擎:深入理解向量数据库(如 Milvus)的索引原理(IVF/HNSW),熟悉 Elasticsearch 的 BM25 算法及插件开发,具备混合检索调优经验。
知识工程:具备本体论 (Ontology) 建模经验者优先。熟悉 RDF/OWL 规范或 Property Graph 模型,能够根据业务场景设计合理的知识表示架构。
2. 工程与算法背景
计算机、数学或相关专业硕士及以上学历;
熟练掌握 Python/Java,熟悉主流深度学习框架及 LLM 开发框架(如 LangChain, LlamaIndex, DSPy 等);
熟悉大数据生态(Spark/Hive/Flink),能处理 PB 级非结构化数据的清洗与特征工程。
3. 加分项
在 ACL、EMNLP、KDD 等顶会有相关论文发表者。
有大型企业级知识图谱、语义搜索或对话系统上线经验。
对 Graph Database(如 Neo4j)有深入研究。 投递
NIO

About NIO

NIO is a pioneer and a leading company in the premium smart electric vehicle market. Founded in November 2014, NIO’s mission is to shape a sustainable and brighter future together. NIO aims to build a community starting with smart electric vehicles to share joy and grow together with users.

NIO designs, develops, jointly manufactures and sells premium smart electric vehicles, driving innovations in next-generation technologies in autonomous driving, digital technologies, electric powertrains and batteries. NIO differentiates itself through its continuous technological breakthroughs and innovations, such as its industry-leading battery swapping technologies, Battery as a Service, or BaaS, as well as its proprietary autonomous driving technologies and Autonomous Driving as a Service, or ADaaS.

NIO’s models for sale include the all-new smart electric flagship SUV ES8, the smart electric flagship coupe SUV EC7, the smart electric mid-large SUV ES7, the smart electric flagship sedan ET7, the all-new smart electric all-round SUV ES6, the all-new smart electric coupe SUV EC6, the smart electric mid-sized sedan ET5, and the smart electric tourer ET5T.

Industry
Unknown
Company Size
5,001-10,000 employees
Headquarters
Jiading, CN
Year Founded
Unknown
Website
nio.com
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