River
Member of Technical Staff, Hardware, Performance Engineer
Palo Alto, CA; Austin, TX · Staff+
H1B sponsorship available$200k-$420kDetected 25 days ago
C++Deep LearningLogisticsFPGAElectrical Engineering
About the role
- We are looking for exceptional performance engineers to architect, model, and correlate high-performance custom silicon.
- You will take ownership of performance models, ISA and kernel optimization, and FPGA emulators for software development.
Responsibilities
- Simulator Development: Design and implement high-performance and functional models of complex hardware using C++ and/or SystemC.
- HW/SW Co-Design: Collaborate with compiler and kernel teams to optimize software mapping to hardware, ensuring the architecture supports emerging algorithmic breakthroughs efficiently.
- Performance Correlation: Validate the performance model against RTL and pre-silicon emulators to ensure the model's accuracy remains within strict tolerance levels.
- A highly collaborative mindset to push boundaries and co-design effectively with other engineers.
Requirements
- Bachelor's degree in Electrical Engineering or Computer Engineering or Computer Science, and 5+ years practical industry experience working with advanced process nodes (7nm or below).
- Expert proficiency in C/C++ or event-driven simulation environments like SystemC
- Hands-on experience with how compilers transform code (LLVM/GCC/XLA) and how high-performance kernels (CUDA/Triton) interact with the underlying ISA.
- Experience with profiling hardware with performance counters, hardware profilers, and trace analysis tools to dissect application behavior.
Nice to have
- (We encourage you to apply even if you don't meet all of these)
- Hands-on experience in pre-silicon RTL/emulator and/or post-silicon performance validation
- Knowledge or experience of QEMU models for pre-silicon software development
- Proficiency in scripting for data post-processing, visualization of simulation results, and automation of massive regression suites.
- Visa Sponsorship: We sponsor visas.
- We can't guarantee success for every candidate or role, but if you're the right fit, we're committed to working through the visa process.
Skills
- Skills and Qualifications
Compensation
- Depending on background, skills, and experience, the expected annual salary range for this position is $200,000 - $420,000 USD.
Benefits
- River AI offers generous health, dental, and vision benefits, unlimited PTO, and relocation support as needed.
Company info
- We are scientists, engineers, and builders from the industry's top tech companies and AI labs.
- We bring a proven track record of scaling consumer systems for hundreds of millions of users and architecting the pre-training infrastructure behind today's frontier models.
- At River, our mission is to create personal AI owned and shaped by each individual.
- personal hardware for local inference, custom training infrastructure, next-generation UIs, and frontier deep learning research.
Visa & Work Authorization
- We can't guarantee success for every candidate or role, but if you're the right fit, we're committed to working through the visa process.
- We sponsor visas.
This listing is sourced directly from River's careers page and normalized into a canonical job model.