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Location
In office (Shanghai)
Seniority
Middle · 3+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Aug 14, 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.

岗位职责:

1、 平台核心架构设计与开发:负责语音大模型API平台的整体架构设计与核心模块研发,包括 API Gateway、模型路由、流量调度、多租户隔离等,确保系统高可用、高并发与可扩展。

2、 模型服务化与接入层建设:设计并实现统一的模型调用协议与接入标准,支持多模型(自研/三方)的统一接入、版本管理、灰度发布与流量切换,对外提供标准化的 API/SDK。

3、平台运营与治理能力建设:构建开放平台的计量计费、配额管控、限流熔断、Token用量统计、调用链追踪、异常监控告警等治理体系,支撑平台的商业化运营。

4、Agent 平台基建:参与 Agent编排引擎的设计与开发,涵盖任务编排、上下文管理、工具/插件注册与调用、行为策略、Memory管理等模块,提升平台标准化与工程化水平。

5、 协议标准与开源生态整合:跟进并落地行业标准协议(Response Api、 Managed Agent Api等),兼容支持主流框架/应用/SDK,构建可插拔的平台能力层,降低业务接入成本。

6、性能优化与技术演进:针对大模型推理场景进行工程侧优化,持续关注前沿技术并推动架构升级。

岗位要求:

1、 计算机相关专业,3年以上后端开发经验,具备良好的业务抽象与系统设计能力;

2、 精通 Golang/Java/Python 至少一门语言及其主流框架,深入理解框架特性与底层实现原理;

3、具有大规模分布式系统设计与开发经验,熟悉微服务架构、消息队列、缓存、服务治理等常用中间件;

4、精通 MySQL 及至少一种 NoSQL 数据库(Redis/MongoDB/Elasticsearch等),具备合理的表结构设计与查询优化能力;

5、熟悉 RESTful API / gRPC 设计规范,有平台型产品或开放 API 体系建设经验者优先;

6、了解大模型推理服务的基本原理(Tokenization、流式输出、上下文窗口管理等),有 LLM 应用开发或Agent工程经验者优先; 了解语音大模型和语音实时服务相关技术和术语,包括ASR、TTS、Speech2Speech,全双工/半双工,单路流式、双路流式、Voice Agent、IVR、SIP、外呼、Web RTC等,并有实际研发经验。

7、具有良好的沟通协作能力、自驱力和成长型思维,能在快速迭代的环境中主动推动技术方案落地,有不错的抗压能力。

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