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Performance Engineer, Inference Systems
San Francisco or New York City or Seattle
$350k-$850k/yr OnsiteFull Time
Hands-on performance engineering with Python, data analysis, and cross-layer investigations; strong communication of quantitative results.
Python, SQL, Pandas
2mo
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Founding Engineer - ML Performance
San Francisco, California, United States
$250k-$395k/yr RemoteFull Time
Hands-on CUDA, GPU optimization, and large-scale model inference experience; strong systems and performance engineering skills.
CUDA, GPU, NCCL, PyTorch, Triton, TensorRT, CUDA kernels
3mo
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Brake Performance Engineer
Foster City or Irvine
$115k-$130k/yr OnsiteFull Time
5+ YOEBS or MS in Mechanical, Electrical, or Automotive Engineering; 5-8 years brake development/vehicle testing; strong braking system knowledge; travel within continental US.
CANalyzer, INCA, MDA, MATLAB/Simulink, Racelogic Vbox
2w
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Operations Performance Engineer
San Francisco or New York City or Denver or Austin or Calgary or Toronto
$189k-$202k/yr RemoteFull Time
5+ YOEBachelor's in engineering,5–10 years supporting utility-scale solar/BESS or grid operations,ERCOT market and telemetry knowledge,SCADA/EMS experience,Power Factors experience,site visit capability.
Power Factors, SCADA, Energy Management Systems (EMS), OSIsoft PI, Tesla Megapack
3d
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Lead Building Performance Engineer
San Francisco, California, United States
$122k-$151k/yr HybridFull Time
5+ YOEBachelor's in engineering/architecture/building science, professional registration preferred (PE/RA), 5+ years building performance project leadership, experience with energy/water/carbon/daylighting analyses, client communication and team mentoring.
IESVE, EnergyPlus, Rhino, Grasshopper, Ladybug Tools, Honeybee, ClimateStudio, Radiance, DIVA, One Click LCA, EC3, Athena, Tally, Power BI, SketchUp, Adobe InDesign, Revit
3mo
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Performance & Systems Engineer, Codex
San Francisco, California, United States
$295k-$445k/yr HybridFull Time
Experience optimizing large-scale ML systems and cloud infrastructure; collaborate with researchers and engineers; based in San Francisco with hybrid work and relocation support.
Cloud Platform, Container Orchestration, System Profiling, Performance Optimization, Machine Learning Infrastructure
1w
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Senior Performance Engineer
San Francisco, California, United States
$170k-$205k/yr OnsiteFull Time
Expertise in Linux kernel systems, low-level optimization, performance benchmarking, and high-performance coding in Go/C/C++/Rust. Bachelor's degree or equivalent experience and cross-functional collaboration skills.
Go, C, C++, Rust, Linux
1mo
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ML Systems & Performance Engineer
San Francisco, California, United States
OnsiteFull Time
5+ YOE5+ years building training/inference systems; strong engineering skills; experience with ML frameworks, GPUs, distributed systems; bachelor's degree or equivalent experience.
PyTorch, JAX, GPUs
3w
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Attitude Guidance & Performance Engineer
San Francisco or Golden or Toulouse
$130k-$190k/yr HybridFull Time
5+ YOE5+ years experience in attitude control or guidance engineering; strong communication and organizational skills; hands-on, able to diagnose ADCS anomalies; extensive knowledge of Python.
Python
2w
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PERFORMANCE HARD PARTS ENGINEER
Fremont, California, United States
OnsiteFull Time
Proficient in CAD (Solidworks), strong manufacturing knowledge, experience with rapid development tools, CAD-to-CAM workflow, troubleshooting, and effective communication.
Solidworks, Cosmoswork, CAD, CAM, FEA, CFD, CMM arms, 3D scanners, 3D printers, CNC Mill, CNC Lathe
1mo
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Member of Technical Staff, TPU & AMD GPU Performance Engineering
San Francisco, California, United States
$200k-$400k/yr OnsiteFull Time
Bachelor's or equivalent experience in CS/engineering; hands-on AMD GPU/TPU optimization; experience with ROCm/HIP/Triton, XLA/JAX/Pallas; strong profiling, benchmarking, and cross-platform performance skills.
vLLM, ROCm, HIP, Triton, CK, AITER, TPU, XLA, JAX, Pallas, SGLang, TensorRT-LLM, ATOM, MLIR, LLVM, PyTorch
3d
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Senior Systems Engineer, CKS Performance
Livingston or New York City or Sunnyvale or Bellevue or San Francisco
$182k-$242k/yr OnsiteFull Time
5+ YOE5+ years Linux kernel or systems engineering experience; deep kernel internals (cgroups, namespaces, scheduler, memory); kernel crash debugging; strong C skills; experience with container runtimes and Kubernetes; upstreaming patches.
crash, gdb, kdump, containerd, runc, kubelet, CRI, eBPF, C
1mo
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Building Performance Analyst
Los Angeles or Riverside or Sacramento or San Diego
$93k-$144k/yr HybridFull Time
6+ YOEBachelor's degree, 6+ years energy modeling/building performance analysis, 1 year IES Virtual Environment experience, Revit proficiency, familiarity with ASHRAE standards, and strong reporting and design communication skills.
Integrated Environmental Solutions Virtual Environment, Revit, Ladybug, Honeybee
3w
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GPU Performance Architect
Folsom or Santa Clara
$127k-$217k/yr HybridFull Time
Develop performance models and prototypes for GPU/SoC systems; analyze ML/HPC workloads; write and optimize GPU kernels; strong programming in C/C++/Python; knowledge of CUDA/OpenCL and ML frameworks.
TensorFlow, PyTorch, CUDA, OpenCL, C, C++, Python, Hip, Triton, MLIR, LLVM, RTL, System C
2mo
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Software Engineer, ML Performance Optimization
Foster City, California, United States
$192k-$257k/yr OnsiteFull Time
4+ YOE4+ years total exp; 2+ years in large-scale model training or inference; PyTorch; GPU-accelerated inference; profiling tools; Python or C++.
PyTorch, TensorRT, NVIDIA Nsight, Python, C++
1mo
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Product, Performance Marketing
San Francisco or United States
HybridFull Time
7+ YOE7+ years performance marketing experience; managing $500k+/month ad spend across Meta, TikTok, and Google; client-facing senior POC; strong analytics and statistical skills; experience hiring/managing marketers; product / engineering collaboration.
Meta, TikTok, Google, SKAN
1mo
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Senior Quality Engineer, Performance and Analytics
New York City or Reno or San Ramon
$114k-$142k/yr HybridFull Time
5+ YOE5+ years in quality engineering for SaaS; experience validating performance analytics (TWR, Brinson, P&L), APIs, databases, cloud platforms, automated testing, and collaborating with product and engineering teams. Must be U.S. work authorized.
Claude Code, Cursor, GitHub Copilot, ChatGPT, SQL, OLAP, Columnar, AWS, Azure, Google Cloud, APIs, databases, ETL
2w
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Process and Thermal Performance Intern
Alameda or Florida
$35-$45/hr HybridInternship
Pursuing Bachelor's or Master's in Mechanical/Chemical engineering, coursework in thermodynamics/fluid mechanics/heat transfer, familiarity with 1D thermal-fluid analysis and simulation tools, strong math and communication skills.
AFT, Ebsilon, Aspen, MATLAB, Aspen Plus/HYSYS, CFD, FEA
1w
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Software Engineer, High Performance Computing
San Francisco, California, United States
$150k-$250k/yr HybridFull Time
Systems-level performance expertise with OS and I/O, strong in Rust/C++/C, experience with NVMe/PCIe/NVLink, profiling and optimization, familiarity with CUDA/SLURM/Kubernetes preferred.
Databricks, Snowflake, Rust, C++, C, CUDA, SLURM, Kubernetes, io_uring, PyAV, decord, NVDEC, DALI, PyTorch DataLoader, GPU-Direct Storage, NVMe, NVLink, PCIe
2mo
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Principal Engineer, iOS Performance
San Francisco, California, United States
$233k-$326k/yr RemoteFull Time
10+ YOE10+ years software development; 5+ years iOS app design/implementation; experience leading large iOS teams; Swift/SwiftUI; cross-functional collaboration; BS or higher in CS or related field.
Swift, SwiftUI, Structured Concurrency, iOS development frameworks
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