CPU Core Regression Debug Engineer

1 week ago

Bengaluru, India Tenstorrent Full time

The Tenstorrent team combines technologists from different disciplines who come together with a shared passion for AI and a deep desire to build great products. We value collaboration, curiosity, and a commitment to solving hard problems.

Find out more about our culture.


CPU verification engineer driving core level regression debug, triage and responsible for the functional sign-off for the core.


  • Functional verification with emphasis on core level regression debug and triage for simulation and emulation regressions
  • Hands-on debug for core level failures. Propose and implement stimulus enhancements and debug capability improvements for core, cluster and chip level testbench environments
  • Primary owner for driving bug hunting using all available stimulus generators. Analysis of bugs found and proposing not only stimulus but also configuration and coverage changes
  • Drive core level regression environment enhancements to improve the overall productivity for the team
  • Develop detailed core level verification plans by understanding both ISA and microarchitectural specifications for the design
  • Support design deployment across simulation and emulation platforms
  • Develop random and directed stimulus that spans pre-silicon, emulation and post-silicon domain
  • Work with design, test and post silicon validation teams to ensure high quality delivery of the entire CPU core / cluster


  • BS/MS/PhD in EE/ECE/CE/CS with at least 7+ years of experience
  • Strong background and experience with high performance OOO CPU microarchitecture
  • Experience and understanding of one or more ISAs - x86, ARM or RISCV
  • Significant experience debugging RTL and DV in a simulation environment, proficient at waveform and log file based debug
  • Experienced with assembly, C/C++ and UVM based stimulus generation targeting both ISA and microarchitectural scenarios
  • Familiar with simulation, formal and emulation environments
  • Hands-on with scripting (Python, PERL)
  • Experience with hardware description languages (Verilog, VHDL) and simulators (VCS, NC, Verilator)
  • Strong problem solving and debug skills across various levels of design hierarchies


Locations: Bangalore, India


Tenstorrent offers a highly competitive compensation package and benefits, and we are an equal opportunity employer.

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