General Information

Req #
WD00080512
Career area:
Software Engineering
Country/Region:
China
State:
Guangdong
City:
深圳(Shenzhen)
Date:
Tuesday, April 8, 2025
Working time:
Full-time
Additional Locations
* China - Guangdong - 深圳(Shenzhen)

Why Work at Lenovo

We are Lenovo. We do what we say. We own what we do. We WOW our customers. 

Lenovo is a US$57 billion revenue global technology powerhouse, ranked #248 in the Fortune Global 500, and serving millions of customers every day in 180 markets. Focused on a bold vision to deliver Smarter Technology for All, Lenovo has built on its success as the world’s largest PC company with a full-stack portfolio of AI-enabled, AI-ready, and AI-optimized devices (PCs, workstations, smartphones, tablets), infrastructure (server, storage, edge, high performance computing and software defined infrastructure), software, solutions, and services. Lenovo’s continued investment in world-changing innovation is building a more equitable, trustworthy, and smarter future for everyone, everywhere. Lenovo is listed on the Hong Kong stock exchange under Lenovo Group Limited (HKSE: 992) (ADR: LNVGY). 

This transformation together with Lenovo’s world-changing innovation is building a more inclusive, trustworthy, and smarter future for everyone, everywhere. To find out more visit www.lenovo.com, and read about the latest news via our StoryHub.

Description and Requirements

岗位职责/Job Responsibilities:
1. 负责视频会议设备Android系统网络通信模块的设计、开发与优化,保障高并发、低延迟的音视频数据传输;
2. 深入优化TCP/UDP/QUIC等网络协议栈,解决弱网环境(高丢包、高延迟)下的连接稳定性问题;
3. 负责深度定制ConnectivityService、WifiService等系统服务,支持企业级网络策略(如流量管控、VPN多路复用,代理设置)
4. 优化网络权限管理机制,适配Android新版本特性(如后台网络访问限制、动态权限模型)
5. 掌握TCP/IP、HTTP/2-3、DNS、QUIC、WebSocket等协议,熟悉802.11ax(Wi-Fi 6/7)标准 ,网络设备发现协议(如CDP/LLDP)及VLAN自动配置
6. 实现网络数据传输安全(SSL/TLS双向认证、证书固定、防中间人攻击、AES-256)
7. 开发维护音视频传输SDK,集成RTP/RTCP、WebRTC等协议,提升端到端通信质量;
8. 设计与实现网络状态动态监测、自适应码率调整、抗丢包重传等核心功能;
9. 配合硬件团队完成网络模块(Wi-Fi/5G/蓝牙)的驱动适配与性能调优;
10. 攻克跨平台(Windows/iOS/Web)视频会议互通中的网络兼容性问题;
11. 编写技术文档,参与代码Review,推动团队技术标准化。

岗位要求/Job Requirements:
1. 7年以上Android开发经验,精通Java/Kotlin,熟悉JNI/NDK开发;
2. 深入理解Android网络框架,熟悉Socket编程、多线程同步、内存优化;
3. 掌握主流网络协议(TCP/IP/HTTP/QUIC)及音视频传输协议(RTP/RTCP/SIP/WebRTC);
4. 熟悉物联网协议(MQTT、CoAP)、边缘计算网络架构
5. 熟悉OpenWrt、OP-TEE等安全方案,或具备Flutter跨平台网络插件开发能力优先
6. 有音视频SDK、IM通信、P2P传输等开发经验者优先;
7. 备分析全链路网络问题(从驱动丢包到应用层超时),熟练使用Wireshark、tcpdump、Systrace等工具进行网络问题定位。


Additional Locations
* China - Guangdong - 深圳(Shenzhen)
* China
* China - Guangdong
* China - Guangdong - 深圳(Shenzhen)