1mo
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Senior Principal Software Engineer - 5 (Linux Kernel Engineer)
Santa Clara or Seattle or United States
$97k-$306k/yr OnsiteFull Time
10+ YOEExtensive Unix/Linux kernel and OS development experience, proficiency in C, familiarity with kernel debugging, experience with kernel subsystems (networking, storage, memory, security), and familiarity with Python and Bash.
C, Python, Bash, DPDK, OFED, RoCE, InfiniBand, iSCSI, Fibre Channel, NFS, ZFS, Btrfs, XFS, Linux, TPM, Secure Boot
3mo
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Kernel/OS Engineer, AWS EC2 Nitro Operating System
Seattle or Santa Clara
$144k-$194k/yr OnsiteFull Time
3+ YOE3+ years professional software development; 2+ years design/architecture; strong Linux kernel experience; C, Lua, Rust, or similar languages.
Linux, C, Lua, Rust, ash
1mo
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Senior Linux Kernel Systems Software Engineer – CSP Engagements
Santa Clara or Austin or Redmond or Seattle
$184k-$357k/yr OnsiteFull Time
10+ YOE10+ years system software experience; expert in Linux kernel internals, device drivers, PCIe/USB/Ethernet, ARM (aarch64) and x86, kernel debugging (GDB, kdump, eBPF), C/C++, Python, virtualization, Kubernetes, NUMA and performance optimization.
GDB, kdump, eBPF, ARM (aarch64), x86, C, C++, Python, Kubernetes, CUDA, PCIe, USB, Ethernet, IOMMU, NUMA, CXL
1w
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Senior Software Engineer - GPU Kernel Authoring & Optimization
Sunnyvale or Bellevue
$182k-$242k/yr OnsiteFull Time
5+ YOE5+ years building HPC/GPU software, hands-on CUDA kernel authoring and optimization, C++/Python coding, GPU profiling, and experience delivering performance at scale.
CUDA, Nsight Compute, Nsight Systems, C++, Python, Triton, Mojo, CuTe DSL, JAX, HIP, ROCm, NCCL, Kubernetes, SUNK, Slurm, MLPerf, vLLM, TensorRT-LLM, llm-d, SGLang, KNYFE, Pallas, CUTLASS
1mo
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Senior Product Security Engineer, Secure Design (Kernel and Virtualization)
United States or Seattle
$140k-$175k/yr RemoteFull Time
Deep kernel and virtualization security expertise; threat modeling and mitigation design for hypervisors (Qemu/KVM); strong systems-level coding background; ability to partner with engineering teams and communicate security risks.
AppArmor, SELinux, Landlock, Qemu, KVM, Go, Rust, C, LinkedIn Learning
1mo
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Embedded Linux Engineer
Seattle or Costa Mesa
$166k-$220k/yr OnsiteFull Time
U.S. Person required. Experience with Linux kernel development, board bring-up (device trees, bootloaders, kernel drivers), uboot/EDK2, triaging and patching vulnerabilities, C or Rust, and interest in Nix/NixOS instead of Yocto/buildroot.
Linux kernel, uboot, EDK2, Nix, NixOS, Yocto, buildroot, C, Rust, CUDA, C++, Python, Go, Haskell
1mo
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Member of Technical Staff - Low Level & Kernels Capabilities
San Francisco or Toronto or Seattle
$200k-$350k/yr OnsiteFull Time
Experienced low-level systems engineer fluent in C/C++/CUDA and Python, kernel and kernel-optimization experience, hardware-aware coding, familiarity with LLMs, and ability to design robust, ungameable RL environments.
C, C++, CUDA, Python, assembly, cuBLAS, FFTW, OpenSSL, FPGA, RISC-V, SIMD, AVX, TPU, RTL, HDL, HLS, MLIR, LLVM, Mojo, Triton, gem5, Lean, Coq, SMT
2d
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Software Engineer III, AI and Infrastructure, gVisor
Sunnyvale or Kirkland
$147k-$211k/yr OnsiteFull Time
2+ YOEBachelor’s degree or equivalent, ~2 years software development experience, experience with large-scale distributed systems, Linux kernel internals, cloud platforms, and one or more languages (Java,C/C++,Python,JavaScript,Go).
Kubernetes, Google Cloud Functions, Linux Kernel, Java, C/C++, Python, JavaScript, Go, Docker, containerd, Vertex AI, TPU
1mo
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Senior Solutions Architect, Spectrum-X Low Level
Santa Clara or Austin or Redmond
$184k-$357k/yr OnsiteFull Time
8+ YOE8+ years embedded software experience with real-time systems, Linux kernel, Ethernet/IP, firmware development for networking, knowledge of NC-SI/MCTP/RMII, customer-facing skills, and degree in CS/EE or equivalent experience.
Spectrum-X, C, Perl, python, shell, Linux kernel, Linux, NVIDIA DPUs, RoCE, RDMA, InfiniBand, Ethernet, IP, NC-SI, MCTP, RMII
1mo
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Senior Avionics Software Engineer (Engines)
Huntsville or Seattle
$198k-$277k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
8+ YOEB.S. in engineering/CS or related, 8+ years developing/testing real-time embedded systems, experience with bare metal/RTOS/Linux kernel, C/C++, Python, device drivers, git/JIRA/Confluence, SDLC, TCP/IP, and verification/validation.
C, C++, Python, git, JIRA, Confluence, RTOS, Linux kernel, TCP/IP, DO-178, NPR 7150, Rust, UML
2mo
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Principal Modem Engineer
Plano or New York or Basking Ridge or Bellevue or Santa Clara or Boise
$232k-$293k/yr OnsiteFull Time
10+ YOE10+ years embedded Linux/modem development, 5+ years cellular modem driver development, 3+ years eSIM/OpenWrt experience; proficiency in C/C++; Linux kernel driver and modem interfaces; BS in EE/CE/CS/Telecom required.
OpenWrt, LEDE, Linux kernel, qmi_wwan, QMI, RMNET, AT commands, C, C++, iptables, nftables, iproute2, netifd, Jenkins, GitLab CI, GitHub Actions, Qualcomm SDX-series
1w
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Sr. Engineer II, Sensor - Sensor Performance Engineering (Hybrid)
Sunnyvale or Austin or Redmond
$160k-$250k/yr HybridFull Time
10+ YOE10+ years Windows kernel/kernel-mode or deep systems engineering; expert with WPA/xperf/ETW/WPP/ETL analysis; strong Windows kernel API knowledge; experience with large-scale performance investigations and customer escalations.
Windows Performance Analyzer (WPA), xperf, ETW, WPP, ETL, ETWReader, SQL Server, AnyConnect
1mo
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R&D Software Engineer - Virtual Machine Monitor
California or Burlington or Bellevue
$129k-$230k/yr OnsiteFull Time
7+ YOEDeep knowledge of processor architecture and OS kernel internals; experience in C and assembly; virtualization/kernel experience; x86_64 proficiency; advanced degree plus years of related experience; must be authorized to work in the US.
C, Assembly, VT-x, AMD-V, x86_64, VMware Cloud Foundation (VCF), vSphere
3mo
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Software Engineer - C++ GPU Performance
Foster City or Boston or San Diego or Seattle
$168k-$239k/yr HybridFull Time
3+ YOE3+ years experience; BS in Computer Science or related field; strong CUDA, C++, Linux; GPU performance optimization; experience with GPU kernels and performance tooling.
CUDA, Nsight, C++, Linux, TensorRT, XLA, OpenGL, RocM
2w
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Platform Security Engineering, Operating Systems
San Francisco or New York City or Seattle
$320k-$405k/yr HybridFull Time
Deep Linux internals and kernel security knowledge, C and systems programming, eBPF experience, familiarity with SELinux/AppArmor/seccomp, track record fixing OS-level vulnerabilities; bachelor's degree or equivalent.
Linux, SELinux, AppArmor, Linux Security Modules, seccomp, eBPF, C, SEV, TDX, SGX, TPM, HSM
2d
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Principal Software Engineer
Redmond, Washington, United States
$143k-$275k/yr HybridFull Time
6+ YOEBachelor's in CS or related and 6+ years engineering experience (or equivalent); proficiency in C/C++/C#/Java/JavaScript/Python; experience building debuggers, kernel-mode or OS internals, cross-architecture work (x64/ARM64); pass Microsoft security screening.
C, C++, C#, Java, JavaScript, Python, WinDbg, DbgEng, KDNET, Time Travel Debugging (TTD)
2mo
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Applied AI Engineer - iCloud Data
Cupertino or Seattle
OnsiteFull Time
8+ YOE8+ years software engineering; 3+ years LLM/agent systems; proficiency in Python/Scala/Java/Go; experience with LangChain, LlamaIndex, Semantic Kernel; AI systems production discipline; data infrastructure, SQL, lakehouse; MS/BS in CS/AI/ML or related field.
Python, Scala, Java, Go, LangChain, LlamaIndex, Semantic Kernel, Google ADK, FAISS, Chroma, LLM frameworks, vector databases, SQL engines, Trino, Presto, Spark, Apache Flink, Kafka Streams
2w
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Senior Engineering Manager, AI Infrastructure
Seattle, Washington, United States
$147k-$220k/yr OnsiteFull Time
12+ YOE2+ Mgmt12+ years infrastructure/HPC experience, 2+ years supervising engineering teams, Bachelor's in a related field, hands-on GPU/HPC, orchestration, storage, Go or Python proficiency.
Linux kernel, InfiniBand, NCCL, Beaker, AWS, GCP, Kubernetes, Slurm, WEKA, Ceph, Lustre, Go, Python
1mo
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Network Reliability Engineer
Austin or Atlanta or Denver or Seattle or Washington
HybridFull Time
3+ YOE3+ years network/site reliability engineering experience; BA/BS in CS or equivalent; experience with Saltstack, Ansible, Chef, NX-OS/JUNOS/EOS/Cumulus/Sonic; Linux administration; iproute2, Traffic Control, Devlink; software development in Go and Python; AI/LLM tooling experience.
Saltstack, Ansible, Chef, NX-OS, JUNOS, EOS, Cumulus, Sonic, LLM, iproute2, Traffic Control, Devlink, Go, Python, AirFlow, Temporal, FRR, Bird, GoBGP, C, C++, rust, Linux, Linux kernel, Prometheus, Grafana, Thanos, Clickhouse, Kubernetes, Docker, Consul