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高级固件工程师

Senior Staff Firmware Engineer

Groq

地点
圣何塞，美国
工作方式
混合办公
类型
全职
资历
senior
部门
系统设计

半导体HPC

职责

  • 负责 Groq AI 加速器硬件底层固件的端到端开发。
  • 作为产品全线（引导加载程序、驱动程序、实时操作系统、应用层服务）固件的主要技术权威，负责提供愿景、制定标准，并在性能、功耗、安全性和可维护性之间做出权衡决策。
  • 通过定期开展设计评审、结对编程和“固件午餐会”技术交流，提升团队实力。指导初级和中级工程师；制定晋升路径，帮助工程师晋升为高级工程师或首席工程师。
  • 将产品需求文档 (PRD) 翻译成详细的固件规范、架构图和接口合同。
  • 定义可在多个 Groq 产品中利用的模块化、可重用的固件框架。
  • 利用深厚的嵌入式 Linux 和 RTOS 专业知识，包括创建和维护设备树 blob，以描述固件-硬件配置，用于自定义板集成。
  • 设计并记录固件-硬件接口，确保与设备树和 RTOS 层无缝集成。
  • 主导对延迟关键路径（例如，LPU DMA、中断延迟、电源状态转换）的系统性分析、优化和验证。实施稳健的错误处理、看门狗和安全机制，以确保生产环境中 99.99% 以上的正常运行时间。
  • 与硬件、芯片、系统软件和人工智能软件团队紧密合作，共同设计接口（PCIe、DDR、高速 SerDes、I²C、SPI 等）。推动集成测试策略，并快速解决跨领域缺陷。
  • 识别并实施流程改进（固件持续集成/持续交付流水线、自动化回归测试、静态分析、代码审查标准）。倡导以数据驱动决策为导向的文化，从而带来可衡量的质量提升。
  • 负责新 LPU 芯片的启动工作，包括引导加载程序开发、早期外设启动和芯片后验证。在实验室中使用示波器、逻辑分析仪、JTAG/SWD 和系统内跟踪工具进行实际调试。
  • 集成安全启动、固件加密、认证和其他安全原语。支持产品认证（例如 FCC、CE）和上市准备活动。

必备要求

  • 计算机工程、电气工程、计算机科学或相关领域的理学士学位。
  • 在复杂、高性能 SoC/ASIC 平台（最好是 AI/ML 加速器）上拥有 10 年以上的专业固件开发经验。
  • 精通 C/C++（C-11 或更高版本）、汇编语言和底层硬件交互（内存映射 I/O、中断处理、DMA、引导加载程序设计）。
  • 拥有实时操作系统（FreeRTOS、Zephyr、VxWorks、ThreadX）和/或裸机固件在延迟关键型工作负载方面的丰富经验。
  • 熟练掌握高速接口（PCIe Gen3/4、DDR4/5、SerDes、以太网）和低速总线（SPI、I²C、UART、CAN）。

优先条件

  • AI/ML 固件 – 之前从事 AI/ML 推理引擎、张量加速器或类似工作负载的固件开发工作。
  • 数据中心经验 – 了解服务器级电源、冷却和可靠性要求。

Responsibilities

  • Own end-to-end development of low-level firmware for Groq AI accelerator hardware.
  • Serve as the primary technical authority for firmware across the product line (bootloaders, drivers, RTOS, application-layer services), providing vision, setting standards, and making trade-off decisions among performance, power, security, and maintainability.
  • Empower the team through regular design reviews, pair programming, and "firmware lunch" technical exchanges. Mentor junior and mid-level engineers; define promotion paths to help engineers advance to senior or principal engineer.
  • Translate product requirements documents (PRDs) into detailed firmware specifications, architecture diagrams, and interface contracts.
  • Define modular, reusable firmware frameworks leveraged across multiple Groq products.
  • Leverage deep embedded Linux and RTOS expertise, including creating and maintaining device tree blobs to describe firmware-hardware configurations for custom board integration.
  • Design and document firmware-hardware interfaces, ensuring seamless integration with device tree and RTOS layers.
  • Lead systematic analysis, optimization, and validation of latency-critical paths (e.g., LPU DMA, interrupt latency, power state transitions). Implement robust error handling, watchdogs, and safety mechanisms to ensure >99.99% uptime in production.
  • Collaborate closely with hardware, chip, system software, and AI software teams to co-design interfaces (PCIe, DDR, high-speed SerDes, I²C, SPI, etc.). Drive integration test strategies and quickly resolve cross-domain defects.
  • Identify and implement process improvements (firmware CI/CD pipelines, automated regression testing, static analysis, code review standards). Advocate a data-driven decision-making culture that delivers measurable quality improvements.
  • Lead bring-up and debugging of new LPU chips, including bootloader development, early peripheral bring-up, and post-silicon validation. Perform hands-on debugging in the lab using oscilloscopes, logic analyzers, JTAG/SWD, and in-system trace tools.
  • Integrate secure boot, firmware encryption, authentication, and other security primitives. Support product certification (e.g., FCC, CE) and launch readiness activities.

Must Have

  • BS in Computer Engineering, Electrical Engineering, Computer Science, or related field.
  • 10+ years of professional firmware development experience on complex, high-performance SoC/ASIC platforms (preferably AI/ML accelerators).
  • Proficiency in C/C++ (C-11 or later), assembly language, and low-level hardware interaction (memory-mapped I/O, interrupt handling, DMA, bootloader design).
  • Extensive experience with real-time operating systems (FreeRTOS, Zephyr, VxWorks, ThreadX) and/or bare-metal firmware for latency-critical workloads.
  • Strong hands-on experience with high-speed interfaces (PCIe Gen3/4, DDR4/5, SerDes, Ethernet) and low-speed buses (SPI, I²C, UART, CAN).

Preferred

  • AI/ML firmware – prior firmware development for AI/ML inference engines, tensor accelerators, or similar workloads.
  • Data center experience – understanding of server-level power, cooling, and reliability requirements.

公司简介

Groq 提供快速高效的 AI 推理。我们基于 LPU 的系统为 GroqCloud™ 提供强大支持，为企业和开发者带来所需的速度和规模。从湾区起步，到如今不断拓展的全球业务，我们始终致力于让高性能 AI 计算更加普及和经济实惠。当实时 AI 触手可及，一切皆有可能。快速构建。