Performance Engineer: Kernel & Memory at Scale
Cloudflare - HQ
Cloudflare is seeking a Performance Engineer specializing in the Linux kernel memory subsystem. You will diagnose bottlenecks, implement optimizations, and push changes upstream while collaborating with cross-functional teams. The role focuses on memory management at a large scale to improve performance and cost efficiency. We value contributions to the Linux kernel, strong C programming, and the ability to drive instrumentation (tracepoints, BPF, perf) in production environments. #J-18808-Ljbffr CloudFlare
- Austin, TX, United States Position Title: Performance Engineer, Kernel and Memory About Us At Cloudflare, we are on a mission to help build a better Internet... ...is one of the highest-leverage problems we have. At our scale, how the kernel's memory-management subsystem behaves...PerformanceLocal area
- ...Member of Technical Staff - Kernels & GPU Performance Location: San Francisco... ...platform combines large-scale compute infrastructure with... ...different execution models, memory hierarchies, capabilities,... ...runtime, and distributed-systems engineers. What You’ll Do Build...PerformanceFull time
- ...You'll write and optimize the GPU kernels and supporting systems software that... ...fast. This is deep, low-level work (performance counters, memory bandwidth, warp-level scheduling) applied... ...models actually use. We hire kernel engineers because the gap between "this works"...PerformanceShift work
- ...seeking a Member of Technical Staff for Kernels & GPU Performance in San Francisco, on-site. The role... ...across kernel implementation, memory access, profiling, and validation, partnering... ..., runtime, and distributed-systems engineers to improve latency, #J-18808-Ljbffr...Performance
- ...and optimize custom GPU kernels using C++, PTX, CUDA,... ...operations for large-scale LLM training and inference... ...runtimes. Develop performance models, identify... ..., distributed systems engineers, and model-serving teams... ...expertise in CUDA, ROCm, GPU memory models, and...PerformanceFull timeFlexible hours
- ...Crusoe Energy Systems is seeking a seasoned Compute SRE to own virtualization performance and kernel-level optimization for our AI-first compute platform. You will deploy, tune, and scale bare-metal and virtualized infrastructure supporting AI and HPC workloads. You...Performance
- ...Robotics is seeking a senior ML systems engineer to own end-to-end training stack... ...production-grade infrastructure for terabyte-scale robot data in real homes and... ...-node distributed training, and performance tuning of GPUs, memory, and I/O. #J-18808-Ljbffr Weave RoboticsPerformance
- Systems Engineer - Linux Kernel & Virtualization Summary We're a well‑funded, stealth startup building... ...kernel interactions, identifying performance bottlenecks, and implementing novel solutions... ...Whether it’s tackling pathological memory access overhead by implementing...Performance
- ...combines world-class researchers, engineers, designers, and operators who... ...behind them. We connect kernel development with the broader... ...resolve correctness, concurrency, performance, power, and reliability... ...Linux kernel subsystems, such as memory management, storage,...Performance
$300k
...GPU Optimisation Engineer — Real-Time Inference Want to push GPU performance to its limits — not in theory, but in production... ...performance is really lost: memory hierarchy, kernel launch overhead, occupancy... ...layers, profiling large-scale speech and multimodal models...PerformanceRelocationVisa sponsorshipFree visa- ...Technical Staff - Compiler Engineer Location: San Francisco... ...The platform combines large-scale compute infrastructure with... ...different architectures, memory systems, and performance characteristics. The compiler... ..., memory movement, kernel execution, and end-to-end serving...PerformanceFull time
$200k - $300k
...AI research to systems engineering to product design —... ...We are looking for a Performance Engineer to make World... ...generative world models at scale is a novel systems... ...the bottlenecks — in kernels, in the serving path,... ...drive kernel fusion, memory- and bandwidth-bound optimization...Performance- ...reliable, and accessible at scale. We’re a small,... .... Researchers and engineers at Hedra work closely... ...understanding where time and memory are being spent,... ...algorithms, runtimes, kernels, and distributed execution... ...deep on model performance, GPU systems, or efficient...PerformanceWork at office
- ...High Performance Computing Engineer San Francisco Bay Area We are pioneering advanced... ...CUDA/ROCm, MPI, and large-scale system optimization.... ...implementations for computational kernels Create and maintain MPI-... ...solutions Optimize memory access patterns and communication...Performance
$117.9k - $131.77k
...SephoraReady for a career glow up? As Systems Technologist, DAM & Scale, you’ll drive the integration, enhancement, and scaling of... ...analytical tools to query usage and adoption data, define key performance indicators, and measure the effectiveness and efficiency of DAM...Performance- World Labs in San Francisco is hiring a Performance Engineer to accelerate training and serving of large world models. You will identify bottlenecks across kernels, serving paths, and GPUs, then implement concrete improvements that raise throughput and lower latency. You...Performance
- Mercor is seeking GPU kernel optimization experts to contribute to a project with a leading AI lab. This contract-based opportunity... ...GPU programming experience, and the ability to improve kernel performance using profiler-guided analysis. You will evaluate, optimize, and...PerformanceContract workFreelance
$300 per month
...urgency, who believe in the scale of our ambition and... ...and be part of a high-performing team that believes in... ...our Site Reliability Engineering (SRE) team plays a... ...partnering with hardware and kernel teams to diagnose low-... ...on I/O subsystems, memory management, and...PerformanceTemporary work- 1. Role Overview Mercor is seeking GPU kernel optimization experts to contribute to a project with a leading AI lab. This opportunity... ...GPU programming experience, and the ability to improve kernel performance using profiler-guided analysis. You'll help evaluate, optimize...PerformanceContract workFreelance
- ...Production Engineer Rootshell Enterprise Technologies... ...overnight alerts, system performance, SLIs/SLOs, and proactively... ...reviews. Design and scale reliable systems using... ...strategies. Strong Linux kernel knowledge, including scheduler, memory allocation, drivers,...PerformanceNight shift
- ...committed researchers, engineers, policy experts, and... ...beneficial AI systems. Performance Engineer, Inference Engine... ...the accelerator kernels and the routing layer.... ...across chips, managing memory for weights and activations... ...system at Anthropics scale: improving throughput,...Performance
- ...Role As a Forward Deployed Engineer (FDE), you are a core... ...our most strategic, large-scale customer environments. You... ...distributed systems, high-performance file systems, storage protocols... ...systems architecture, memory management, and kernel mechanics. Hands-on Development...Performance
- ...building production-grade voice agents at scale. More than 200,000 developers and 1,300+... ...how we operate, innovate, and measure performance. Every team member who works at Deepgram... ...feel like they have a dedicated engineer in their corner. Who You Are You're not...PerformanceWork at officeRemote work
$209k - $253k
...urgency, who believe in the scale of our ambition and... ...and be part of a high-performing team that believes in... ...-focused Production Engineers are the backbone of that... ..., hypervisor, and kernel-level performance for... ..., NUMA configuration, memory management, and interrupt...PerformanceTemporary work$170k - $205k
...urgency, who believe in the scale of our ambition and... ...and be part of a high-performing team that believes in each... ...Deployment Automation Engineer for the Compute Team,... ...Internals: Knowledge of Linux kernel internals, specifically... ...topology, VFIO, and memory management (HugePages,...PerformanceTemporary work$185k - $260k
...Working with scientists and engineers, we combine simulation... .... You will define performance objectives and develop... ...enough for large-scale offline processing. Early... ...processing within compute and memory budgets. Use measured... .... C++ or custom GPU-kernel development....Performance$381k
...for AI.About the RoleAs an Engineer on our hardware... ...for programmability and performance. You will work with our kernel, compiler and machine learning... ...tailoring the compute pipe and memory hierarchy of the hardware... ...to drive decisions on scale up, scale out, front end...PerformanceWork at officeLocal areaRelocation packageFlexible hours- Zipline is seeking an experienced Linux kernel engineer to own hardware bring-up, drivers, and... ...and build scalable validation as Zipline scales to millions of deliveries daily. You... ...flight software teams to ensure safety, performance, and reliability across the kernel stack...Performance
- ...in a changing world.We're seeking a GPU Performance Engineer to squeeze every last FLOP from our H10... ...10x speedups. From writing custom CUDA kernels to eliminating cold start latency, you'... ...for our serving infrastructureTune memory access patterns, kernel fusion, and GPU...Performance
$347k
...platforms deliver real-world performance aligned with workload needs.Our... ...Porting & Performance Engineer to evaluate new hardware platforms... ...expectations across compute, memory, and networking subsystems.This... ....Experience working in large-scale or distributed system...PerformanceWork at officeLocal areaRelocation packageFlexible hours
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