Xiaomi Technology

顶尖应届-操作系统软件开发工程师-汽车架构

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Job Description

顶尖应届-操作系统软件开发工程师-汽车架构

南京

校招

正式

软件研发类

职位描述

本课题聚焦实时操作系统时间确定性保障关键技术,致力于解决嵌入式系统在复杂工况下面临的时序不确定难题,拟通过如下关键技术突破实现目标: 1、高精度时序测量与建模技术:研发基于硬件时间戳与软件结合的混合测量架构,突破传统RTOS测量精度不足的限制,精准测量任务/中断执行时序和时间,同时设计任务/中断最大执行时间分析数学模型(WCET),构建任务/中断执行时序特征数据库; 2、实时操作系统的编译代码优化与缓存命中率提升技术:旨在通过静态/动态分析、硬件协同等验证技术,增强多核/异构系统中指令(ICache)与数据缓存(DCache)的可预测性,从而保障任务最坏执行时间(WCET)分析的精确性与时序确定性; 3、 基于AI的多核调度优化引擎:通过建立多核任务/中断的数学模型,结合AI算法,创新性实现基于调度时序特征提取的调度优化机制,保证软件系统调度确定性; 4、实时系统中缓存时序攻击的防御机制研究 :通过硬件辅助(如缓存分区与锁定)、软件层干扰检测(如动态时序监控)及调度算法优化(如抢占点控制与优先级隔离),在多核系统中实现安全敏感代码的时间确定性保障,阻断攻击者通过缓存资源竞争破坏任务WCET预测与截止时间约束的行为; 5、跨域时间敏感任务调度框架:针对车载多域控制器需求,实现基于以太网时钟同步的全局调度协调器,实现端到端确定性调度; 6、构建纯软件纯仿真平台:通过操作系统仿真模型,模拟调度行为,降低对硬件开发环境的依赖,优化迭代效率; 7、将研究成果作为关键特性集成在小米汽车OS中,通过系统时间分析和优化,提升整车功能的端到端实时性,进而提升用户体验。

职位要求

1、需具备嵌入式实时操作系统的技术能力,熟悉FreeRTOS, Nuttx, Thread-X,AUTOSAR OS内核技术; 2、需具备大数据处理和大模型推理技术能力; 3、具备整车级功能全局性认知能力,掌握整车实时控制和响应的应用场景; 4、精通嵌入式软件开发,例如具有汽车电子、机器人等领域软件开发经验; 5、具备优秀的工程实践能力,能够独立解决复杂的技术问题,推动项目的顺利进行; 6、具有良好的团队精神和学习能力,乐观积极的心态。

职位信息

课题名称及内容:

【课题名称】 实时操作系统时间分析和优化 【课题内容】 本课题致力于解决嵌入式系统在复杂工况下面临的时序不确定难题,提升操作系统的实时性,保证系统内和跨系统交互的端到端的实时性能达标、稳定,让整车功能更精准的控制和响应。课题涉及高精度时序测量与建模、实时操作系统的编译代码优化与缓存命中率提升、基于AI的多核调度优化引擎、实时系统中缓存时序攻击的防御机制、跨域时间敏感任务调度框架、构建纯软件纯仿真平台等技术领域研究。

投递

Xiaomi Technology

About Xiaomi Technology

Xiaomi Corporation was founded in April 2010 and listed on the Main Board of the Hong Kong Stock Exchange on July 9, 2018 (1810.HK). Xiaomi is a consumer electronics and smart manufacturing company with smartphones and smart hardware connected by an IoT platform at its core.

Embracing our vision of “Make friends with users and be the coolest company in the users’ hearts”, Xiaomi continuously pursues innovations, high-quality user experience and operational efficiency. The company relentlessly builds amazing products with honest prices to let everyone in the world enjoy a better life through innovative technology.

Xiaomi is one of the world's leading smartphone companies. The company has also established the world’s leading consumer AIoT (AI+IoT) platform,reached 558 million smart devices connected to its platform (excluding smartphones,laptops and tablets) as of September 30 2022. Xiaomi products are present in more than 100 countries and regions around the world. In August 2022, Xiaomi was included in the Fortune Global 500 list for the fourth year in a row, ranking 266th. The company is the fastest-rising Chinese technology conglomerate during the four-year period.

Xiaomi is a constituent of the Hang Seng Index, Hang Seng China Enterprises Index, Hang Seng TECH Index and Hang Seng China 50 Index.

Industry
IT & Software
Company Size
10,000+ employees
Headquarters
Beijing, CN
Year Founded
2010
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