Gem5 Developer Jobs

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2d ago

Systems Software Engineer

quadric Burlingame, CA

Burlingame, CA

2d ago

$150k - $220k/yr Full time C++ Language Debugging Engineer

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Job Description

Quadric is hiring a Systems Software Engineer (onsite) to build foundational systems layers that connect its GPNPU hardware with a high-level SDK.

Responsibilities

Maintain and optimize the architecture validation and software development simulator
Lead design of a low-level toolchain that translates code, supports binary execution (including ELF), and loads code
Build and iterate debugging tools and backends for deep, low-level visibility into core GPNPU execution
Design, maintain, and document clean abstraction layers and public C++ APIs for users and SDKs to interact with hardware with minimal friction
Independently own and expand one or more systems stack components (Simulator, Loader/Assembler, Debugger, or C++ Host APIs)
Analyze execution trade-offs using the Instruction Set Simulator to influence next-generation GPNPU hardware and software specifications
Deliver production-ready, low-latency API abstractions and debugging utilities used by internal SDK developers and external customers

Requirements

5 years+ systems software experience: simulators, toolchains, debuggers, drivers, or performance-critical C++ libraries
Strong working knowledge of modern C++ (C++17/20) and systems-level programming paradigms
Advanced comfort with RAII, manual memory management, object lifetimes, ownership models, and memory access optimization
Ability to identify, design, and maintain clean abstraction layers that improve readability, maintainability, and scalability
Proactive, adaptable approach to problems arising from a brand-new processor architecture
Demonstrated experience working at the hardware and software boundary, including one or more of:
- Building/extending cycle-accurate or functional simulators (e.g., Gem5, QEMU, or proprietary tools)
- Working on debugger internals such as breakpoints, memory inspection, and GDB stubs/remote protocols
- Shipping C++ SDKs/libraries balancing “zero-cost” abstractions with intuitive user experiences
- Writing or maintaining assemblers, linkers, or loaders with deep knowledge of binary formats (ELF) and memory layouts
- Writing performance-critical code where every byte and cycle counts (e.g., drivers, embedded firmware)
Low-level hardware concepts: understanding of CPU/NPU pipelines, registers, caches, and silicon-level constraints
Experience with CUDA, OpenCL, or Vulkan plus SIMD/SIMT architectures and host-to-device memory transfers
Experience with Linux driver development and CMake project configuration best practices
Familiarity with Rust for systems safety and reasoning through multi-threaded logic and complex synchronization issues
Knowledge of integrating functional programming concepts in non-garbage-collected environments

Technologies

C++, C++17, C++20
RAII
ELF, ELF formats
Gem5, QEMU
GDB, GDB stubs
CUDA, OpenCL, Vulkan
SIMD, SIMT
Linux driver development, CMake
Rust
Caltrain

Benefits

Medical, dental, and vision insurance from day one, with premiums covered at 99% for employees
Company-paid life insurance
Voluntary supplemental life insurance
STD + LTD insurance
Commuter support including parking or Caltrain reimbursement (office is within walking distance of the Caltrain station)
FSA + HSA
Equity with the business
Paid parental leave
401(k) retirement plan
Flexible PTO
Winter holiday shutdown
Catered lunch each day in the office
Downtown Burlingame office location near shops, cafes, and local amenities
Collaborative, low-ego culture with significant ownership and impact
Work culture focused on innovative disruption

Location: Burlingame, CA (onsite) | Salary: USD 150,000 - 220,000 per year | Experience: 5+ years

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