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ScaleFlux

Senior Firmware Engineer

ScaleFlux, Milpitas, California, United States, 95035

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Department:

Engineering/Firmware Development

Job Description We are seeking a highly skilled

CXL (Compute Express Link) Firmware Engineer

to join our team. This role will focus on the development, optimization, and debugging of firmware for next-generation CXL-enabled systems. The ideal candidate will have a strong background in low-level firmware development, PCIe, memory subsystems, and system software for high-performance computing environments.

Key Responsibilities

Design, develop, and maintain firmware solutions for CXL-based devices and memory systems.

Implement and optimize firmware components supporting CXL protocol, including memory pooling, coherency, and device enumeration.

Work closely with hardware, software, and system architecture teams to ensure seamless CXL integration.

Debug and resolve firmware issues related to CXL, PCIe, and memory management using various debugging tools and techniques.

Collaborate on performance tuning and power optimization for CXL-based systems.

Stay updated on CXL specifications and contribute to industry discussions and standards where applicable.

Develop unit tests, validation frameworks, and automated testing strategies to ensure firmware quality and reliability.

Provide technical documentation and support to internal teams and external partners.

Required Qualifications

Engineer with 5+ years of experience in Linux kernel and kernel module development.

Experienced in Linux support and development with knowledge in memory management, cache and memory subsystems, schedulers, filesystems, architecture-specific code (x86, ARM, RISC-V).

Hands‑on experience with high‑speed protocols like PCIe/CXL is a plus.

Good system knowledge and debugging mechanisms in the Linux kernel (ftrace, kdump, ktraces, eBPF, …).

Familiarity with embedded systems development at SoC/Bare Metal level.

Good knowledge of industry standards, such as BMC, IPMI, PCI/PCIe/CXL, I2C, I3C, SPD, SMBUS, ACPI and etc.

Good knowledge of OCP standards, MCTP, PLDM, SPDM, JEDC and etc.

Well organized, with good written and oral communication skills.

Self‑learning skill to understand and develop good understanding of the system.

Why Join Us?

Work on cutting‑edge

CXL technology

shaping the future of memory and computing architectures.

Collaborate with industry leaders and top engineers in

high‑performance computing and semiconductor design .

Competitive compensation, benefits, and career growth opportunities.

Seniority Level Mid‑Senior level

Employment Type Full‑time

Job Function Engineering and Design

Industries Computers and Electronics Manufacturing

If you are passionate about firmware development and excited to work on next‑generation CXL‑based systems, we would love to hear from you!

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