Senior Or Principal Nuclear Medicine Technologist VitalHireSenior Or Principal Nuclear Medicine TechnologistSan Francisco, CA$166,000–$226,000 / yearMust be able to independently perform all routine PET/CT exams and at least 3 of the following specialty exams:Multiphase CT, Pediatric, Cardiac, Neuro, or Research PET/CT. A leading Medical Center is hiring 2 Senior/Principal Nuclear Medicine Fusion Technologists to join its PET/CT team.
Principal Applications Engineer BloomEnergyPrincipal Applications EngineerSan Jose, CA$137,600–$206,400Our cutting-edge solutions enable unparalleled “time-to-power” capabilities, reliability, and sustainability, ensuring our customers remain ahead in a world where soaring energy demand and intensifying energy scarcity are rapidly becoming the new norm. The Principal Application Engineer must have experience working independently in a competitive sales environment with a focus on eliminating technical barriers for complex energy projects while representing a highly technical product or service related to the power industry.
Principal Software Development Engineer – Compiler & ML Acceleration Advanced Micro Devices, IncPrincipal Software Development Engineer – Compiler & ML AccelerationSan Jose, CaliforniaWe are looking for a Principal Software Development Engineer to lead technical development in compiler technology, MLIR-based infrastructure, and model-to-hardware optimization, with a strong focus on enabling high-performance execution for AI workloads. AMD is building the next generation of compiler and software infrastructure to accelerate Large Language Models (LLMs) and ML workloads on emerging accelerator architectures.
Principal Photonic Device Design Engineer The Hiring MethodPrincipal Photonic Device Design EngineerFremont, CaliforniaA global leader in optical communications technology is seeking a Principal Design Engineer to lead the design and development of next-generation high-speed InGaAs/Indium Phosphide (InP) photodiodes used in advanced optical communication and sensing applications. Working alongside world-class engineers, you'll drive innovation from concept through production while helping develop the next generation of optoelectronic devices that power AI infrastructure, high-speed networking, and advanced photonic technologies.
Principal Program Manager, TDI OktaPrincipal Program Manager, TDISan Francisco, CA$188,000–$258,500 / yearAs Okta continues to scale AI across the enterprise, we are seeking a highly technical, strategic, and execution-focused Principal Program Manager to lead complex, cross-functional programs across Technology, Data, and Intelligence (TDI). You will partner across Engineering, Product, Infrastructure, Security, Data, Finance, and Business teams to align strategy, establish scalable operating models, and drive predictable execution across large, interconnected programs.
Senior Or Principal Nuclear Medicine Technologist - Perm - San Francisco, CA VitalHireSenior Or Principal Nuclear Medicine Technologist - Perm - San Francisco, CASan Francisco, CA$166,000–$226,000 / yearMust be able to independently perform all routine PET/CT exams and at least 3 of the following specialty exams:Multiphase CT, Pediatric, Cardiac, Neuro, or Research PET/CT. A leading Medical Center is hiring 2 Senior/Principal Nuclear Medicine Fusion Technologists to join its PET/CT team.
Principal Controls Engineer BloomEnergyPrincipal Controls EngineerSan Jose, CA$176,300–$253,700Our cutting-edge solutions enable unparalleled “time-to-power” capabilities, reliability, and sustainability, ensuring our customers remain ahead in a world where soaring energy demand and intensifying energy scarcity are rapidly becoming the new norm. We anticipate being able to work in concert with other renewable energy technologies to create a comprehensive system that will change the way energy in the world is produced, stored, transmitted, and used.
Principal CPU Microarchitect - Risc-V & AI Compute TenstorrentPrincipal CPU Microarchitect - Risc-V & AI ComputeSanta Clara, CAAs the position offered will have direct and/or indirect access to information, systems, or technologies subject to these laws, the offer may be contingent upon your citizenship/permanent residency status or ability to obtain prior license approval from the U.S. Commerce Department or applicable federal agency. Hardware-Software Co-Designer: Driven to architect custom instruction set extensions and validate their performance gains against real-world workloads.
Principal Mechanical Engineer Advanced Micro Devices, IncPrincipal Mechanical EngineerSan Jose, CaliforniaThis position is especially suited for top-tier talent from semiconductor and high-performance hardware companies with strong experience in advanced packaging, mechanical design, mechanical stress simulation, and manufacturing execution who want to remain technically involved while also helping guide packaging strategy, engineering excellence, and future team growth. Deep knowledge of thermo-mechanical reliability, stress analysis, warpage, and package-board interaction, including correlating simulations with DIC, shadow moiré, warpage metrology, strain gauges, thermal cycling data, cross-section analysis, acoustic microscopy, and failure analysis results.
Principal Firmware Engineer - AI System/OpenBMC Hyve SolutionsPrincipal Firmware Engineer - AI System/OpenBMCFremont, California$214,000–$290,000 / yearThis Principal-level role owns BMC firmware architecture and development—built on OpenBMC—for Hyve's next-generation AI and compute server platforms, spanning manageability, telemetry, power/thermal control, security, and manufacturing enablement in close partnership with hardware and Hyperscaler customers. Technical expertise: Strong C/C++ and embedded Linux skills; deep knowledge of OpenBMC, Redfish, IPMI, I2C/I3C, PMBus, SPI, and platform management interfaces; experience with secure boot, firmware update, and RoT.
Principal Power Delivery Engineer - AI System Hyve SolutionsPrincipal Power Delivery Engineer - AI SystemFremont, CaliforniaTechnical expertise: Deep knowledge of DC/DC conversion, multiphase VR design, 48V/54V architectures, PDN design and analysis, magnetics, and power component selection; experience with power simulation and bench characterization (electronic loads, oscilloscopes, thermal tools). This Principal-level individual contributor role owns the architecture, design, and validation of power delivery for Hyve's AI and compute server platforms—from 48V/54V input and intermediate bus conversion through point-of-load regulation for GPUs, CPUs, and memory.
Principal Network Engineer (Onsite) Roth Staffing CompaniesPrincipal Network Engineer (Onsite)Alameda, California$80–$88.30 / hourApplies reliability engineering practices to network change management, including pre-change validation, intent verification, staged rollout, canary deployment, automated rollback, and post-change verification. · Uses observability data, including metrics, logs, traces, flow data, routing state, device telemetry, and packet-level evidence to diagnose reliability issues.
Principal Mechanical Engineer Mainspring EnergyPrincipal Mechanical EngineerMenlo Park, California$210,000–$247,000 / yearIn this role, you will shape long-term technical direction, define or strongly influence architecture and design principles, guide high-consequence technical decisions, and help the organization solve problems that are novel, ambiguous, and central to long-term product and business success. Experience developing hardware for energy systems, engines, generators, compressors, pumps, thermal systems, fluid systems, structures, high-cycle fatigue environments, precision alignment systems, electromechanical systems, or industrial equipment.
AI Principal Engineer - Clinical Data Analytics Exelixis Inc.AI Principal Engineer - Clinical Data AnalyticsAlameda, CA$172,000–$245,000 / yearBachelor's degree in Computer Sciences, Data in a related field (e.g., Information Services, Data Science) or equivalent and a minimum of eleven years of related experience; or, Master's degree in Computer Sciences, Data in a related field (e.g., Information Services, Data Science) or equivalent and a minimim of nine years of related experience; or, Equivalent combination of education and experience. This incumbent acts as a strategic business partner across Data Science and Statistics (DSS) functions, integrating data across domains to generate actionable, outcome-driven insights and AI capabilities, including Generative and Agentic AI.
NewPrincipal Test & Quality Platform Architect OraclePrincipal Test & Quality Platform ArchitectRedwood City, CAThe ideal candidate brings deep Oracle RDBMS expertise, understands enterprise database architectures, and can translate real customer deployment patterns into high-value quality initiatives that improve reliability, scalability, availability, and performance. Establish customer engagement mechanisms-including customer advisory forums, internal working groups, and data-driven feedback channels-to continuously capture deployment patterns, operational pain points, and emerging workloads.
Principal Clinical Engineer Imperative CarePrincipal Clinical EngineerCampbell, CA$188,000–$220,000 / yearServe as the subject matter expert when establishing and implementing project plans for product development including preclinical testing, bench testing, model development needs, in-vitro test methods and plans and in-vivo animal studies. What You’ll Do As an expert level professional, the Principal Clinical Engineer will offer subject matter expertise to drive the development and improvement of Telos’ technology to elevate our products clinical application through intuitive design and meaningful improvements for physicians when using our products.
Principal Technical Program Manager Hyve SolutionsPrincipal Technical Program ManagerFremont, CaliforniaThe Senior Program Manager will serve as the central leader coordinating cross-functional teams including Engineering, Platform Validation, Product Management, Manufacturing, Supply Chain, Quality, Operations, and Customer Engineering to ensure successful execution of strategic programs. Hyve Solutions is seeking a highly motivated and experienced Principal Technical Program Manager to lead the development and delivery of next-generation server, storage, AI, and rack-scale infrastructure platforms for hyperscale cloud customers.
Principal Process Technology Engineer BloomEnergyPrincipal Process Technology EngineerSan Jose, CA$176,300–$253,700The successful candidate will play a central role in detailed process and systems engineering, driving functional design development and advancing system integration while shaping project definition and execution to enable cost-effective, scalable deployment across multiple product platforms and applications, including decarbonized power solutions for gigawatt-scale data centers. Our cutting-edge solutions enable unparalleled “time-to-power” capabilities, reliability, and sustainability, ensuring our customers remain ahead in a world where soaring energy demand and intensifying energy scarcity are rapidly becoming the new norm.
Principal Software Developer – AI/ML Performance Validation & Systems Testing Advanced Micro Devices, IncPrincipal Software Developer – AI/ML Performance Validation & Systems TestingSan Jose, CaliforniaDrive compute workload validation and characterization — LLM training and inference (PyTorch, vLLM, Triton, JAX), recommender systems, scientific HPC kernels, MLPerf-class benchmarks — establishing reproducible methodology, baselines, and regression tracking. Lead system-level testing for server nodes — multi-GPU topologies, PCIe/Infinity Fabric/xGMI, BMC/IPMI, thermal/power, firmware interactions, and multi-node fabric (Ethernet/InfiniBand/UALink) bring-up and validation.
Machine Learning Engineer (Staff & Principal) Tubi, Inc.Machine Learning Engineer (Staff & Principal)San Francisco, CA$239,000–$342,000 / yearFor all full-time, regular employees, in lieu of FOX Paid Parental Leave, Tubi offers a generous Parental Leave Program, which allows parents twelve (12) weeks of paid bonding leave within the first year of birth, adoption, surrogacy, or foster placement of a child in addition to applicable government leave program(s) and FOX's short-term disability policy. As a senior technical expert, you will tackle complex problems in machine learning at scale, collaborating closely with cross-functional teams to develop and optimize machine learning-driven solutions.