Demo

Senior Firmware Engineer

ScaleFlux
Milpitas, CA Full Time
POSTED ON 5/11/2026
AVAILABLE BEFORE 6/9/2026

Job Title: CXL Firmware Engineer

Location: Milpitas, California

Job Type: Full-time

Department: Engineering/Firmware Development


Job Description:

We are looking for an experienced firmware engineer to develop next-generation CXL Type 3 memory expansion devices. The candidate will work across firmware, memory subsystem, and system-level integration


Key Responsibilities:

  • Develop and optimize firmware for CXL Type 3 devices at SoC / bare-metal level
  • Design and implement features related to memory initialization, training, and runtime management
  • Work on system-level integration with host platforms (x86/AMD), including debug and performance tuning
  • Collaborate with hardware, validation, and system software teams to bring up new silicon


Required Qualifications:

  • Strong experience in embedded systems development at SoC / bare-metal level
  • Hands-on experience with high-speed interfaces such as PCIe Gen5 and/or CXL
  • Solid understanding of memory subsystems, including DDR initialization and training flows
  • Experience with RAS (Reliability, Availability, Serviceability) features such as ECC, error handling, memory diagnostics, or fault isolation
  • Familiarity with industry standards and protocols such as I2C, I3C, SMBus, SPD, ACPI
  • Familiarity with low-level debugging tools and methodologies (JTAG, trace, logs, etc.)
  • Good understanding of system architecture and hardware/software interactions.


Preferred Qualifications

  • Experience with Linux kernel development or driver development (especially memory subsystem or device drivers)
  • Knowledge of cache/memory hierarchy, NUMA, or system memory management
  • Experience with server platform management technologies such as BMC, IPMI
  • Knowledge of OCP standards and management protocols (MCTP, PLDM, SPDM)
  • Familiarity with JEDEC standards related to DRAM and memory modules
  • Strong problem-solving and debugging skills
  • Good written and verbal communication skills
  • Self-driven with ability to learn new technologies quickly

Salary.com Estimation for Senior Firmware Engineer in Milpitas, CA
$152,449 to $175,513
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