Principal Place and Route (PnR) Engineer
SambaNova Systems4 hours ago
Base Salary
$1 - $1000k/yr
Responsibilities
- Develop partitioning, placement, and routing algorithms that satisfy hardware resource constraints while keeping compile times practical.
- Tune place-and-route results for target workloads, including LLM inference across batch sizes and concurrency levels.
- Model new hardware constraints and architecture features in solvers and heuristics as the chip evolves.
- Analyze compiled output with performance engineers and trace throughput gaps back to mapping decisions.
- Build infrastructure for prototyping, regression testing, and deployment of place-and-route changes.
- Collaborate with compiler and hardware teams to define interfaces and resource models.
Requirements
- M.S. or Ph.D. in Computer Science, Computer Engineering, or a related field.
- At least 3 years of experience developing optimization or graph algorithms in industry or research.
- Expert knowledge of graph algorithms, partitioning algorithms, combinatorial optimization, or MILP solvers.
- Strong proficiency in C/C++ and familiarity with Python.
- Experience designing large, highly parallel, performance-sensitive systems.
- Ability to learn hardware architecture and apply it to improve performance.
- Experience solving NP-hard problems in practice using heuristics, approximation, or pruned exact methods.
- Preferred: experience with place and route for FPGAs, CGRAs, or other spatial architectures.
- Preferred: experience with ML compilers such as MLIR, LLVM, TVM, or XLA.
- Preferred: experience with simulated annealing, constraint programming, or SAT/SMT solvers.
- Preferred: familiarity with LLM inference stacks such as vLLM and PyTorch.
- Preferred: publications at venues such as FPGA, DAC, ICCAD, or MLSys.
Benefits
- US-based full-time employees receive medical insurance with 95% employee premium coverage and 77% dependent premium coverage, plus an employer-contributed Health Savings Account.
- Benefits include dental, vision, short- and long-term disability, basic and voluntary life, AD&D, and flexible spending account options.
- Well-being benefits include Headspace, Gympass+ access to physical gyms, One Medical, counseling services, and an Employee Assistance Program.
- The package includes base salary, equity, and other benefits.
About SambaNova Systems
SambaNova Systems builds full-stack AI infrastructure—custom accelerator chips, systems, and foundation models—delivered as on-prem appliances and cloud APIs for enterprises, governments, and data centers. Its offerings include the SambaNova Suite, Samba Cloud, and on-prem SambaStack, powered by its Reconfigurable Dataflow Unit (RDU) architecture, including the SN40L chip. Founded in 2017 and headquartered in San Jose, California, the company is privately held.