Staff Embedded Software Engineer LightmatterStaff Embedded Software EngineerMountain View, CA$175,000–$220,000 / yearThe company invented the world's first 3D-stacked photonics engine, Passage, capable of connecting thousands to millions of processors at the speed of light in extreme-scale data centers for the most advanced AI and HPC workloads. Collaborate across a multidisciplinary team including Photonic, Analog, Digital, Systems and Network experts to define control plane architecture for Lightmatter's photonic interconnect products.
RF Hardware Engineer HarkRF Hardware EngineerSan Jose, California$120,000–$300,000 / yearOwn RF hardware design for one or more radios: architecture definition, RF front-end line-up design and budget analysis (gain, noise figure, linearity, Tx power), component selection, and schematic/PCB design for optimal RF performance. Proficiency with RF lab equipment: vector network analyzers, spectrum analyzers, signal generators, communication testers (e.g., Keysight UXM, R&S CMX/CMW), and OTA anechoic chambers.
Senior Software Engineer, Rendering Infrastructure (AV Simulation) GMSenior Software Engineer, Rendering Infrastructure (AV Simulation)Sunnyvale, California$153,200–$234,100 / yearReproduce real sensor scheduling and vehicle timing — staggered camera exposures, rolling shutter behavior, LiDAR spin and packet rates, hardware clock drift, and the onboard constraints perception actually operates under, including P95/P99 compute latency, transport lag, and packet drops. Integrate the renderer with learned driving models through Gymnasium-style environment APIs — stepping the simulation from Python, exchanging observations and actions efficiently with PyTorch-based models, and preserving deterministic execution while minimizing per-step overhead for eval and training at scale.
iOS/Android Automation Engineer SesameiOS/Android Automation EngineerSan Francisco, CaliforniaDeliver a real quality signal on nightly, weekly, and release builds: what runs as a quick sanity check, what runs as deeper regression, and what we still test by hand. Automate what people actually do in the app (onboarding, text and voice chats, payments, notifications, settings) and check that the result is right, not just that the screen showed up.
Senior FPGA Circuit Design Engineer Altera SemiconductorSenior FPGA Circuit Design EngineerSan Jose, California$149,100–$215,000 / yearAs a senior technical contributor, you will work closely with microarchitecture, SoC/full-chip, IP fabric and interconnect, RTL design, verification, physical design, and other engineering teams to develop new FPGA capabilities, improve programmable logic architectures, and enable efficient integration of FPGA technology into larger systems. 8+ years of experiencein microarchitecture and logic design for complex digital systems, including experience with FPGA fabric, interconnects, routing, clocking, configuration, memory structures, processor subsystems, or Network-on-Chip (NoC) architectures.
Application Security Engineer Pyramid, IncApplication Security EngineerSanta Clara, CAFull timeFamiliarity with network and web application protocols (Http, Https, TCP/IP, SAML 2.0, OAuth 2.0, Rest APIs, etc). Additional Preferred Qualifications: One or more Certifications (CISSP, GWEB, GPEN, GWAPT, OSWE, OSCE, OSCP).
PCB Layout Engineer Pyramid, IncPCB Layout EngineerFremont, CA$55–$60 / hourFull timeAbility to deliver PCB CAD layout of High Density, High Speed memory designs (DDR5/LPDDR5), PCIe Gen 5 or Gen 6, Power Delivery, Mixed Analog/Digital. Perform high-speed digital layout for interfaces like HBM,DDR4/5, PCIe Gen 5/6, USB 3.2 or higher, with attention to controlled impedance, length matching, and crosstalk mitigation.
Applied AI Engineer CHAOS IndustriesApplied AI EngineerSan Francisco, California$150,000–$170,000 / yearPerform research and build products by working with product and mission teams to research, collect data, verify hypothesis and create robust, testable, maintainable, and deployable models. You should be comfortable operating with independence, learning unfamiliar technical domains quickly, working across disparate teams, and moving prototypes toward production with limited oversight.
Senior Principal Runtime Engineer SambaNova Systems, Inc.Senior Principal Runtime EngineerSan Jose, CAPowered by the intelligent SN40L chip, the SambaNova Suite is a fully integrated platform, delivered on-premises or in the cloud, combined with state-of-the-art open-source models that can be easily and securely fine-tuned using customer data for greater accuracy. The Runtime Team builds a high-performance, distributed and scalable software execution environment for SambaNova SambaStack and Cloud platforms to support data-flow applications such as ML training and inference and HPC applications.
Senior Cybersecurity Engineer, Product Security CHAOS IndustriesSenior Cybersecurity Engineer, Product SecuritySan Francisco, CaliforniaThis role will work closely with Software Engineering, Embedded Systems, Hardware Engineering, Infrastructure, and Program teams to ensure security is integrated throughout the product lifecycle — from architecture and development through deployment and operational support. Compensation Components: Competitive base salaries, generous pre-IPO stock option grants, relocation assistance, and (coming soon!) annual bonuses.
Senior Principal Rack System Integration Engineer SambaNova Systems, Inc.Senior Principal Rack System Integration EngineerSan Jose, CA$210,000–$280,000 / yearPowered by the intelligent SN40L chip, the SambaNova Suite is a fully integrated platform, delivered on-premises or in the cloud, combined with state-of-the-art open-source models that can be easily and securely fine-tuned using customer data for greater accuracy. We handle the racking and stacking of tightly integrated network, power, and compute equipment in both prototype and production environments, and we take rack solutions through prototyping into mass production so they stay manufacturable and serviceable at scale.
NewBackend Software Engineer CHAOS IndustriesBackend Software EngineerSan Francisco, CaliforniaWorking alongside software, hardware, and systems engineers, you’ll design and operate the backend services and cloud infrastructure that ingest, process, and deliver mission-critical sensor data at scale. Compensation Components: Competitive base salaries, generous pre-IPO stock option grants, relocation assistance, and (coming soon!) annual bonuses.
NewSenior Software Engineer CHAOS IndustriesSenior Software EngineerSan Francisco, CaliforniaWorking alongside software, hardware, and systems engineers, you’ll design and operate the backend services and cloud infrastructure that ingest, process, and deliver mission-critical sensor data at scale. Compensation Components: Competitive base salaries, generous pre-IPO stock option grants, relocation assistance, and (coming soon!) annual bonuses.
NewSr. Engineer, Cloud HPC Platform Ayar LabsSr. Engineer, Cloud HPC PlatformSan Jose, CaliforniaProduction experience operating secure virtual desktop infrastructure (VDI/DVI) for engineering workloads, preferably Citrix Virtual Apps and Desktops, including application publishing, image and patch lifecycle, SSO/MFA, session brokering and policy, profile and storage integration, GPU/graphics, clipboard and file-transfer controls, monitoring, capacity and high availability, and performance troubleshooting. Plan engineering run capacity: Partner with design and verification teams before major regressions, simulations, and tapeout milestones to translate run manifests and workload forecasts into CPU/core, memory, GPU, wall-time, scratch and capacity I/O, network, license-token, Slurm partition/reservation, and budget requirements; publish capacity scenarios, reservations, and readiness risks.
NewSenior DevOps Engineer CHAOS IndustriesSenior DevOps EngineerSan Francisco, CaliforniaWorking alongside software, hardware, and systems engineers, you’ll design and operate the backend services and cloud infrastructure that ingest, process, and deliver mission-critical sensor data at scale. Compensation Components: Competitive base salaries, generous pre-IPO stock option grants, relocation assistance, and (coming soon!) annual bonuses.
iOS Engineer SesameiOS EngineerSan Francisco, CaliforniaAlways up to date on the latest iOS UI/UX design patterns; tuned into the Apple release cycle and always thinking about how the latest features can help the team produce an even more incredible experience. Expert in eliminating latency in complex iOS apps; nothing— from the network to the architecture or the limitations of the iOS SDK— will get in the way of you cutting those few extra milliseconds off of an interaction.
Senior Applied AI Engineer AlembicSenior Applied AI EngineerSan Francisco, CaliforniaOur stack runs on a 256-petaflop NVIDIA DGX cluster with NVL72 GPU infrastructure, combining Spiking Neural Networks, Graph Neural Networks, and causal inference to deliver real-time analytics that were previously impossible. Ship iteratively against real customer needs — work directly with data products, science, and customer-facing teams to turn requirements into working systems.
Machine Learning Infrastructure Engineer WindBorne SystemsMachine Learning Infrastructure EngineerPalo Alto, CaliforniaData pipelines & upstream reliability — Weather data comes from dozens of sources (satellites, government agencies, our own balloon observations) with varying schedules, incomplete documentation and sometimes failing or changing quality. WindBorne Systems is supercharging weather forecasts with a proprietary data source: a global constellation of next-generation smart weather balloons targeting critical atmospheric data.
LLM Training Engineer SciforiumLLM Training EngineerSan Francisco, CaliforniaBacked by multi-million-dollar funding and direct sponsorship from AMD with hands-on support from AMD engineers the team is scaling rapidly to build the full stack powering frontier AI models and real-time applications. You’ll build and iterate quickly on research ideas, contribute production-grade infrastructure, and help deliver models that can serve real-world use cases at scale.
Head of Flight Test Engineer Samson RoseHead of Flight Test EngineerSan Francisco, CaliforniaThis is a highly visible technical leadership role where you'll lead flight test strategy, oversee complex test campaigns, and help shape the processes, automation, and infrastructure that ensure safe and reliable commercial deployment. We're looking for someone who has: 5+ years of experience designing, developing, validating, or testing complex autonomous, robotic, aerospace, aviation, or other safety-critical systems (UAS experience is strongly preferred).