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Salary
≈ $29k – $63k per year (Estimated)
Location
In office (Shanghai)
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 22, 2026. First seen by Alion on Aug 26, 2026. StepFun scores B on the Alion truth index.

Overview
Company
Impact
Profile match
StepFun is a Chinese foundation model laboratory building a full range of models from language to speech, image and video. Its Step series includes very large mixture of experts models and multimodal systems, and the company releases open weights alongside commercial offerings. The laboratory was founded by a former senior Microsoft executive and is among the most heavily funded of the Chinese model startups; its models are used in Chinese consumer applications and enterprise deployments across several industries.

岗位定位:负责大模型增强搜索业务,融合传统搜索与 LLM 能力,主导搜索 Query 理解、召回、排序、生成回答策略迭代,通过评测、badcase 分析驱动搜索效果持续优化,提升搜索满足率、CTR、留存等核心指标。

岗位职责

1. 负责大模型增强搜索全链路策略设计:包括 query 意图识别、query 改写、多源召回、排序融合、LLM 生成回答、引用溯源、幻觉抑制等模块的策略方案设计、实验落地与效果迭代。

2. 深度分析线上搜索 Case、badcase,完成问题归因,区分检索侧问题 / 模型侧问题 / 策略侧问题,输出可落地优化策略,推动算法、工程团队落地。

3. 设计搜索效果评估体系,结合人工评测、自动化评测、线上 AB 实验,搭建 GSB/DCG 等评估指标,对齐离线评测与线上业务指标。

4. 挖掘长尾、复杂、多轮搜索场景痛点,设计场景化策略; 平衡相关性、时效性、真实性、安全性,抑制模型幻觉,提升生成答案可信度。

5. 跟踪业界搜索 + 大模型前沿方案,做竞品分析、方案 POC,输出策略迭代 Roadmap,对搜索满足率、换 query 率、CTR、用户留存等业务指标负责。

6. 跨团队协同算法、评测、工程、运营,推动策略上线、灰度、全量,沉淀策略迭代 SOP。

任职要求

1. 本科及以上,2年以上搜索策略、NLP 策略产品经验,有大模型搜索 / AI 搜索实战经验优先。

2. 深刻理解搜索全链路:query 理解、召回、排序、rerank、生成式搜索,熟悉 GSB、DCG、搜索质量评估方法论。

3. 具备 badcase 深度归因能力,能够从真实用户 Case 拆解根因,输出可落地策略方案; 有完整 AB 实验从设计-执行-复盘闭环经验。

4. 熟练 SQL/Python,能够做数据分析、指标拆解,用数据驱动策略决策。

5. 懂 LLM 基础能力边界,理解 RAG、Prompt 工程,能够区分模型能力问题与策略问题。

6. 强跨团队协同,目标导向,能够对业务结果负责。

加分项

- 做过 NL2SQL、智能问数、搜索 Agent; 有 Vibe Coding 工具使用经验; 有搜索 Benchmark、评测集搭建经验。

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