Caterpillar
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Technology, Digital and Data
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Job Title ： 嵌入式网络安全开发工程师
岗位职责（Job Responsibilities）
面向 DCU（NVIDIA Orin / Thor，嵌入式 Linux）平台的网络安全功能实现岗位。在安全架构师给定的安全方案与需求下，负责 Secure Boot、设备证书与 mTLS 通信、ROS2 DDS Security、Linux 系统加固、OTA 签名校验、漏洞修复等具体安全功能的编码实现、集成、测试与交付，并输出配套的部署脚本、测试记录与使用文档
实现并集成设备安全通信mTLS，配合 Nginx / MQTT / HTTP 等服务完成双向认证接入，并完成握手失败、证书过期、吊销等异常路径处理与测试。
实现设备证书全生命周期的端侧功能：证书请求（CSR）生成、证书与私钥的安全存储（文件权限、TPM / 安全分区）、证书部署与更新脚本、过期检测与轮换逻辑，并编写对应的自动化测试。
在 Orin / Thor 平台上完成 Secure Boot 相关功能的实现与验证：按方案完成签名密钥配置、镜像 / 内核 / 设备树签名流程脚本化、Fuse 烧写步骤验证、启动链完整性测试，输出可重复执行的操作手册。
实现 ROS2 DDS Security 配置与集成：生成并部署 Identity / Permissions / Governance 文件，完成节点级访问控制配置，验证加密与认证对带宽、时延的影响并给出调优结果。
实现 Linux 系统安全加固项：用户与权限最小化、SSH 与服务配置收敛、防火墙（iptables / nftables）规则、安全基线脚本化检查，并在目标机上验证不影响业务功能。
实现 OTA 安全校验功能：升级包签名验证、完整性校验、版本防回滚检查的端侧代码，覆盖签名无效、包损坏、版本降级等负向用例。
编写并维护安全功能的单元测试、集成测试与部署脚本，输出测试报告、配置说明与故障排查文档；参与代码评审。
配合安全架构师、平台软件、测试与现场团队完成安全功能联调、问题定位与修复
任职要求（Required Qualifications）
本科及以上学历，计算机、软件工程、网络安全、电子信息等相关专业，3 年以上嵌入式 Linux 开发经验，其中 1 年以上网络安全功能开发或集成经验。
扎实的 C / C++ 与 Python / Shell 编码能力，能够独立完成模块开发、调试与测试；熟悉 Git 与常规代码评审流程。
熟悉 Linux 系统基础：用户与权限模型、systemd 服务管理、网络配置、日志系统，
熟悉 OpenSSL 命令行与 API，理解 X.509 证书、CA 签发、证书链校验、具备 TLS / mTLS 实际集成经验。
了解 Secure Boot 与信任链的基本流程，有 NVIDIA Jetson / Orin 或其他嵌入式平台 Secure Boot 使能经验者优先。
具备良好的文档编写能力，能够输出清晰的操作手册、配置说明与测试记录
October 27, 2026 - November 19, 2026
Caterpillar is an Equal Opportunity Employer. Qualified applicants of any age are encouraged to apply
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