AIT Global, Inc.
AIT Global, Inc.

Principal/Lead Design Engineer Memory Controller-(CHI-G / DFI)

San Jose, CA, US • Posted 1 hour ago • Updated 1 hour ago
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Job Details

Skills

  • Principal/Lead Design Engineer

Summary

Job Title: Principal/Lead Design Engineer Memory Controller-(CHI-G / DFI)
Location: San Jose, CA
Role Summary:
We are looking for a Principal Design Engineer to lead RTL development and architecture updates for our Memory Controller subsystem, with deep expertise in the ARM CHI-G (Coherent Hub Interface Gateway) protocol and DDR/LPDDR/HBM PHY-facing DFI (DFI Interface). This role owns modifying and extending an existing memory controller design to accommodate new architectural requirements, protocol updates, and performance targets.

Key Responsibilities:
  • Modify and extend an existing memory controller RTL design to support new CHI-G protocol requirements
  • and DFI interface changes
  • Own microarchitecture updates for command scheduling, arbitration, QoS, and bank/rank management
  • within the memory controller
  • Design and integrate CHI-G request/response/snoop channel logic, ensuring protocol compliance and
  • coherency correctness
  • Develop and maintain DFI-compliant interface logic (command, write/read data, timing parameters) to PHY
  • Analyze impact of new features on timing, power, and area; drive RTL changes through synthesis and STA
  • closure
  • Collaborate with verification, DFT, and physical design teams to ensure the modified design meets
  • functional and PPA (Power, Performance, Area) goals
  • Debug pre-silicon and post-silicon issues related to memory controller behavior, coherency, and interface
  • timing
  • Produce/update microarchitecture specs, interface timing diagrams, and design documentation reflecting the
  • new changes
  • Participate in design reviews and mentor junior engineers on CHI-G/DFI concepts
Required Qualifications:
  • Bachelor's/Master's in Electrical Engineering, Computer Engineering, or related field
  • 8+ years of RTL design experience in SystemVerilog/Verilog for SoC subsystems
  • Hands-on experience with memory controller design (DDR4/DDR5/LPDDR) or equivalent
  • Working knowledge of ARM CHI/CHI-G protocol (coherency, request/response/snoop channels)
  • Working knowledge of APB/AHB/AXI4/ACE interfaces
  • Experience with the DFI specification and PHY-facing timing/command interfaces
  • Experience modifying/extending existing large RTL codebases (not greenfield-only experience)
  • Familiarity with synthesis, timing closure, and low-power design techniques
  • Strong debugging skills using simulation waveforms, formal tools, and lab equipment
Preferred Qualifications:
  • Exposure to DFT, post-silicon bring-up, or PCB-level memory subsystem validation
  • Familiarity with UVM-based verification flows (to collaborate effectively with verification teams)
  • Experience with AI/LLM-assisted RTL development or design productivity tooling
Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.
  • Dice Id: 10106248
  • Position Id: 2026-4413/150501
  • Posted 1 hour ago
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