Software Engineer — RISC-V Random Test Generator

Qualcomm Technologies, Inc.

Job Area:
Engineering Group, Engineering Group > CPU Engineering

About the Role You will contribute to a Python-based random test generation (RTG) framework and its companion assembler library that together form the core of a RISC-V CPU design-verification toolchain. The RTG drives a JIT-style, simulator- coupled generator that produces ELF binaries exercising the RVA
23.1 ISA - including privileged modes, virtual memory, interrupts, vector, and cryptography extensions. The assembler library provides the bit-accurate instruction encoding layer that the RTG and other tools consume.

• Implement new generation objects for RISC-V extensions; common micro-architectural scenarios; and complex data/control-flow composable idioms.
• Add instruction forms and encodings to the python companion assembler and verifying bit-level correctness against the RISC-V ISA spec.
• Write and tune generation themes which are knob-driven test profiles that compose objects to improve RTL coverage.
• Work within the privileged-software stack: exception/interrupt handlers, page-table builders, PMP configuration, and IMSIC programming sequences.
• Work with ISS and RTL verification engineers to triage failures, add targeted regression scenarios, and adjust constraint logic (register allocators, address-space managers, data fillers).

• 2-5 years of experience in CPU design verification, ISS development, or hardware-software co-design.
• Solid Python 3 skills; comfort with generator-based coroutines and object- oriented design patterns.
• Working knowledge of the RISC-V ISA: instruction encoding formats (R/I/S/B/ U/J, compressed, vector), CSR semantics, privilege levels (M/S/U), and the memory model. Alternatively, similar knowledge for x86 or ARM.
• Familiarity with virtual memory (Sv39/Sv48), PMP, and trap/interrupt handling.
• Exposure to random test generation flows or ISS/RTL co-simulation is a plus.

• Compiler development experience.
• Understanding of hypervisor and/or AIA/IMSIC interrupt architecture.
• Familiarity with constraint-propagation libraries.

• Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, or related field and 4+ years of Hardware Engineering, Software Engineering, Electrical Engineering, Systems Engineering, or related work experience.
• Master’s degree in Electrical Engineering, Computer Engineering, Computer Science, or related field and 3+ years of Hardware Engineering, Software Engineering, Electrical Engineering, Systems Engineering, or related work experience.
• PhD in Electrical Engineering, Computer Engineering, Computer Science, or related field and 2+ years of Hardware Engineering, Software Engineering, Electrical Engineering, Systems Engineering, or related work experience.

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Pay scale reflects the broad, minimum to maximum, pay scale for this job code for the location for which it has been posted. Even more importantly, please note that salary is only one component of total compensation  also offer a competitive annual discretionary bonus program and opportunity for annual RSU grants (employees on sales-incentive plans are not eligible for our annual bonus).

In addition, our highly competitive benefits package is designed to support your success at work, at home, and at play.

Qualcomm is an equal opportunity employer. If you are an individual with a disability and need an accommodation during the application/hiring process, rest assured that Qualcomm is committed to providing an accessible process. You may e-mail disabili or call Qualcomm’s toll-free number found here. Upon request, Qualcomm will provide…