Desay SV

驱动开发工程师(深圳)

Desay SV  •  Onsite  •  2 months ago
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Job Description

驱动开发工程师(深圳)深圳全职职位描述1、内核定制与裁剪:根据产品硬件平台和业务场景,对Linux内核进行定制化配置、模块裁剪与功能增强,提升启动速度与运行效率;
2、系统性能分析与调优:使用perf、ftrace、eBPF、SystemTap、bootchart、Profiler 等工具对CPU、内存、1/0、网络等子系统进行深度性能剖析,识别瓶颈并实施性能优化、开机时间优化等;
3、内核稳定性保障:分析并解决内核panic、soft lockup、hardlockup、RCUstall等疑难问题,提升系统长期运行稳定性。
4、QNX/Android/Linux ,负责最小系统移植,BSP基线升级,安全功能开发,selinux、安全启动,STR功能开发和问题定位;
5、负责车载 Camera(MIPI CSI/USB/ 以太网相机)、Display(LVDS/eDP/HDMI/DSI)、PHY、SWitch、USB、BT/WiFi 等外设驱动开发、调试及优化;
6、技术方案设计与评审:主导内核级性能优化方案的设计、验证正与落地,参与系统架构评审,提供底层技术支撑。
7、文档与知识沉淀:撰写内核配置指南、调优手册、故障排查流程等技术文档,推动团队内核能力提升。职位要求核心技术能力:
1、精通C语言,熟悉GNU工具链、交叉编译环境及内核构建流程(Kbuild);
2、深入理解Linux内核核心子系统:进程调度、内存管理、中断处上理、VFS、块设备、网络协议栈等;
3、熟练使用内核调试与性能分析工具:GDB/KGDB、crash、perf、ftrace、eBPF、Valgrind、strace等;
4、掌握3个以上驱动开发经验,显示方向:视频领域显示屏/触摸/显示框架/摄像头Camera输入处理,serdes开发调试,外设驱动:如Codec/SPI/UART/IIC/BT/WiFi/USB/GPS/Sensor/以太网PHY/Swith;
5、掌握3个以上框架或者子系统,高通AIS框架、ALSA框架、Display框架、io-pkt、io-sock、Linux中断子系统、文件系统子系统、网络协议栈子系统、SELinux 安全子系统;
6、了解ARM/x86架构,具备SoC平台(如NXP、Rockchip、Qualcomm、Intel)开发经验者优先。
加分项:
1、有实时Linux(PREEMPT RT)或低延迟系统开发经验或者Hypervisor底层硬件资源分配;
2、参与过开源社区(如LKML)或向主线内核提交过补丁;
3、熟悉容器底层技术(cgroupv1/v2、namespace、seccomp)或虚拟化(KVM/QEMU)性能调优;
4、具备自动化性能测试框架搭建经验(如LTP、PhoronixTest SSuite、自研benchmark) 投递
Desay SV

About Desay SV

Desay SV, one of the leading mobility technology companies, is committed to realizing a smarter mobility for all. Desay SV’s core business focuses on the efficient integration of three major areas of smart cabin, combined driver assistance, and smart service. We continuously develop highly integrated leading hardware and software algorithms to provide global customers with safe, delightful and sustainable mobility solutions and services.

Relying on 39 years of deep accumulation in the design, development, and production processes, Desay SV has continuously expanded its comprehensive strength in R&D innovation, customer service, and safety verification, and built a technical link from smart travel to smart transportation, actively responding to the challenges of the industry transformation. We meet the diverse needs of customers for different product portfolios and business development models, provide drivers and passengers with an excellent travel experience, and bring more room for imagination to future mobility.

Focusing on the sustainable development goal of "safety and reliability”, “win-win growth”, and “green environmental protection", Desay SV actively participates in the global carbon neutral strategy and integrates sustainable development into all aspects of business operations. While giving back to society, respecting every employee of the company, and creating a diverse working environment and development platform for employees, we encourage equality, openness, and coordinated development among all our branches around the world. Desay SV people adhere to the same mission and work together for the same goal—to create a safe, delightful and sustainable mobility.

Industry
Automotive & Mobility
Company Size
501-1,000 employees
Headquarters
Huizhou, CN
Year Founded
1986
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