Lenovo
From Lenovo's careers page
Status: listed on the employer's own careers page when we last checked (daily). Confirm on their site before applying.
We are Lenovo. We do what we say. We own what we do. We WOW our customers.
Lenovo is a US$83 billion revenue global technology powerhouse, ranked #153 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.
岗位职责/Job Responsibilities：
1. 负责IoT设备（如智能音箱、智能屏、车载终端、机器人、智能摄像头等）的Bootloader开发、调试与优化，包括U-Boot、LK、SBL/XBL等，实现启动流程定制、Fastboot支持、固件下载烧录、分区管理等核心功能。
2. 承担Linux/Android内核的移植、裁剪与驱动架构设计，参与芯片平台bring-up，确保系统在嵌入式SoC上稳定启动与运行；同时开发和维护板级支撑包（BSP），为存储（eMMC/UFS/NAND）、USB、MIPI显示与摄像头、以太网、Wi-Fi/BT、电源管理、各类总线等外设提供内核驱动支持。
3. 深度参与系统启动时间优化，通过启动流程裁剪、并行初始化、驱动加载优化等手段达到产品级开机速度指标；设计并维护系统固件升级方案，包括A/B分区无缝升级、Recovery模式定制、差分包制作、掉电保护等，配合云端完成OTA流程的底层支撑。
4. 实现与调试安全启动链（Secure Boot）、Android Verified Boot、dm-verity、TrustZone/TEE集成等安全机制，保障系统完整性；与硬件团队紧密协作，进行板级调试与信号测量，解决启动异常、死机、panic、电源波动、外设不识别等疑难问题。
5. 开发底层诊断工具与工厂产测程序，支持产线裸板测试、自动化校准与器件验证；编写和归档内核、Bootloader相关的技术文档，包括启动流程图、驱动接口说明、移植指南等。
岗位要求/Job Requirements：
1. 3年以上嵌入式系统底层或Linux内核开发经验。
2. 精通C/C++，熟悉GNU汇编或ARM汇编，具备良好的Python/Shell脚本编写能力；深入理解ARM体系结构（Cortex-A/Cortex-M/ARMv7/ARMv8），熟悉MMU、Cache、异常处理、中断控制器（GIC）等核心概念。
3. 扎实的嵌入式Linux/RTOS移植与BSP开发经验，熟悉Bootrom到OS启动的完整流程，有U-Boot、LK或高通SBL/XBL等Bootloader的实际开发与定制经验；熟悉Linux内核核心子系统（进程调度、内存管理、设备驱动模型、设备树、中断框架、时钟与电源管理等），具备复杂驱动的架构设计能力。
4. 掌握常见硬件接口协议与调试方法：I2C、SPI、UART、GPIO、MIPI DSI/CSI、USB 2.0/3.0、SDIO、PCIe等，能阅读电路原理图，熟练使用示波器、逻辑分析仪进行底层分析；了解Android系统启动流程（从Bootloader到init、Zygote再到Home界面）和AOSP构建系统，理解Android HAL层与内核驱动的交互关系。
China - Shanghai - 上海（Shanghai）
China
China - Shanghai
China - Shanghai - 上海（Shanghai）
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