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Salary
≈ $17k – $47k per year (Estimated)
Location
In office (Shenzhen)
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 1, 2026. First seen by Alion on Aug 12, 2026. StepFun scores A 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.

基于 RTOS(FreeRTOS / RT-Thread / ThreadX 等)进行智能音频设备的固件开发与调优,保障音频链路的实时性与稳定性;

负责音频通路开发:麦克风采集、编解码、录音存储 / 缓存、播放与提示音等;

负责音频外设的驱动与调试(I2S / PDM、Codec、麦克风阵列等),完成软硬件联调;

对接端侧音频算法(AEC / NS / AGC / VAD 等),配合完成音频效果调优;

基于 RTOS 做音频任务调度、缓冲(环形缓冲)管理与异常恢复;

参与量产问题排查(音频卡顿、丢帧、噪声、死机等),定位根因并输出解决方案。

任职要求

本科及以上学历,电子 / 通信 / 计算机等相关专业;

3 年左右嵌入式开发经验,熟悉 C 语言;

熟悉至少一种主流 RTOS(FreeRTOS / RT-Thread / ThreadX),有多任务开发经验;

熟悉音频接口与链路(I2S / PDM / Codec / DMA / 环形缓冲等),有音频外设调试经验;

了解常见音频编解码(Opus / AAC / ADPCM 等)或 AEC / NS / AGC / VAD 中的至少一类;

具备基本的问题定位能力(会用示波器 / 逻辑分析仪 / 日志排查)。

加分项

有消费级 / 可穿戴音频产品(录音笔、耳机、对讲、会议麦、工牌等)开发经验;

熟悉麦克风阵列 / 远场拾音;

有低功耗录音、边录边传、断点续录等经验;

有云端 ASR / 语音服务对接经验。

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