Senior RISC-V ISS Engineer: High-Perf C++ & Co-Sim

Qualcomm; Cupertino (CA); On-site; USD 167,000 - 251,000; Full time

Job summary

Qualcomm Technologies, Inc. seeks an experienced engineer to build a high-performance RISC-V ISA simulator in C++ for 64-bit processors. You will translate the specification into tested code and verify co-simulation with RTL, contributing to a broad set of verification tools and workflows.

The role spans architecture, software, and verification, emphasizing correctness and performance in a production-grade environment. Familiarity with Linux, GDB/ELF, and simulators is a plus.

Qualifications

• Bachelor's degree with 4+ years of related hardware/software engineering experience.
• Master's degree with 3+ years of related experience.
• PhD with 2+ years of related experience.

Responsibilities

• Implement the ISA in C++ translating RISC-V specs across extensions.
• Maintain fetch/decode/execute, memory protection, and privilege logic for correctness.
• Co-simulation harness with RTL and flag differences one instruction at a time.
• Write targeted unit tests and compare results against the spec.
• Contribute to simulator extensions and user-focused tooling.

Skills

Solid C++ skills

Reader of unfamiliar codebases

Processor architecture knowledge

Detail-oriented

Specification-driven

Education

Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or related field

Master's degree in Electrical Engineering, Computer Engineering, Computer Science, or related field

PhD in Electrical Engineering, Computer Engineering, Computer Science, or related field

Tools

QEMU

Spike

gem5

GDB

ELF binaries

Job description

Qualcomm Technologies, Inc. seeks an experienced engineer to build a high-performance RISC-V ISA simulator in C++ for 64-bit processors. You will translate the specification into tested code and verify co-simulation with RTL, contributing to a broad set of verification tools and workflows.

The role spans architecture, software, and verification, emphasizing correctness and performance in a production-grade environment. Familiarity with Linux, GDB/ELF, and simulators is a plus.