Principal Machine Learning Engineer- LLM Fine-tuning and Optimization Airbnb IncPrincipal Machine Learning Engineer- LLM Fine-tuning and OptimizationSan Francisco, CARemote$292,000–$365,000 / yearThe team develops and enhances various AI models, ML services and tools including LLM fine-tuning, alignment and optimization, RAG/Search, LLM evaluation and testing automation, feedback-based learning and guardrail for a wide range of applications in Airbnb. Post-training experience in areas like data processing for fine-tuning; responsible LLMs; LLM alignment; reinforcement learning; efficient training and inference; language model evaluation; and/or multilingual and multimodal modeling.
Machine Learning Engineer Staff & Principal Tubi IncMachine Learning Engineer Staff & PrincipalSan 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.
Principal Quality Engineer Penumbra IncPrincipal Quality EngineerAlameda, CA$150,000–$195,000 / yearThis role requires structured Quality Engineering approaches, strong engineering analysis and methodologies, statistical experience, and the ability to architect scalable Quality Engineering systems that prevent defects, reduce variation, and enhance long‑term manufacturing robustness. Working cross‑functionally with Manufacturing Engineering, Industrial Engineering, Operations Leadership, and R&D, you will ensure that quality is proactively designed into processes, risks are systematically mitigated, and improvement opportunities are identified and executed with rigor.
Principal Professional Services Engineer Genesys Cloud Services IncPrincipal Professional Services EngineerMenlo Park, CA$213,512–$223,512 / yearResponsible for initial definition of project goals, timeliness, milestones, and risks; Provide architecture designs and workflows that meet client specifications for Genesys Cloud CX Digital & AI implementations; Configure, test, document, and optimize Genesys Cloud CX deployments within defined delivery framework; Implement and integrate custom code as well as write and conduct tests to verify the functionality, accuracy, and efficiency of developed or enhanced software; Design and build custom middleware solutions for third party chat bot integrations with Genesys Cloud web messengers; Manage project implementation and monitor productivity efficiencies for simultaneous installations; Track projects through completion and acceptance and participate in project status meetings; Assist with security audits of SaaS infrastructures and procedures; Work closely with project managers and customer success managers to provide customers with a great implementation experience; and Collaborate closely with services engagement directors to address pre-sales requests, offering quotes, scoping, and statement of work to customers. The position requires any amount of experience in ALL of the following skills: Experience with customer interactions working with a contact center solution: scoping and talking to customers during pre-sales scoping activities; assisting with resolving complex, escalated customer issues that originated with customers or partners in a multicultural environment.
Principal Full-Stack Engineer, Operations & Fleet Platform Ree Technology GmbHPrincipal Full-Stack Engineer, Operations & Fleet PlatformSan Francisco, CAPartner with Directors to define and execute on an engineering roadmap to level up the organization's focus on engineering quality and delivery velocity, on topics ranging from setting up effecting engineering systems for testing to driving high performance engineering culture. Work closely with Operations, Customer Support, Engineering, and Product to design and develop end-to-end integrated solutions, combining off-the-shelf tools, low-code platforms, and custom-built software where it makes sense.
Principal Process Development Engineer Imperative Care IncPrincipal Process Development EngineerCampbell, CA$182,000–$192,000 / yearLead cross-functional team members to design, characterize, optimize, document, and control all manufacturing processes by defining and measuring critical process parameters (CPP) that impact critical quality attributes (CQA) of the product, while teaching analytical techniques and applying engineering principles to understand the impact and interaction of materials and processes on process and product outputs. Exceptional critical thinking and complex problem-solving skills - able to intuitively identify problems, logically and empirically associate cause and effect, and under a variety of perspectives and constraints, prioritise and provide creative, effective, practical and strategical solutions.
Principal Solutions Engineer, Enterprise Scale AI IncPrincipal Solutions Engineer, EnterpriseSan Francisco, CA$180,000–$225,000 / yearThe range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position and may be inclusive of several career levels at Scale; it will be determined during the interview process based on work location and additional factors, including job-related skills, experience, qualifications, interview performance, and relevant education or training. Our products provide the high-quality data and full-stack technologies that power the world''s leading models, and help enterprises and governments build, deploy, and oversee AI applications that deliver real impact.
Principal Mission / Systems Engineer RTX CorpPrincipal Mission / Systems EngineerSan Jose, CAAST's work environment is passionate, highly collaborative and provides engineers with the freedom to strengthen and expand their skills, explore new and creative ideas, and work closely with our nation's finest service members all while embracing integrity, innovation, and work-life balance. AST's work in areas such as high-capacity broadband communications, signal processing and analysis, tactical SIGINT, and wireless communications continually challenge our extraordinary engineers to resolve problems and make the world a safer place.
Principal Engineer, Digital Verification and Emulation Ayar LabsPrincipal Engineer, Digital Verification and EmulationSan Jose, CaliforniaExperience should include bringing up complex digital designs in emulation, debugging emulation builds, migrating simulation tests to emulation, supporting long-running workloads, improving debug visibility, and working with emulation-ready components such as transactors, checkers, memory models, and bus-functional models. Experience with multiple clock domains, reset domains, clock dividers, asynchronous interfaces, CDC/RDC-sensitive logic, firmware interaction, and digital logic that controls or interfaces with analog/mixed-signal blocks is highly desirable.
Principal Firmware Validation Engineer Microsoft CorpPrincipal Firmware Validation EngineerMountain View, CA$142,800–$274,800 / yearRequired Qualifications: Doctorate in Electrical Engineering, Computer Engineering, Computer Science, or related field AND 3+ years technical engineering experience OR Masters Degree in Electrical Engineering, Computer Engineering, Computer Science, or related field AND 6+ years technical engineering experience OR Bachelors Degree in Electrical Engineering, Computer Engineering, Computer Science, or related field AND 8+ years technical engineering experience. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $188,000 - $304,200 per year.
Structural Engineer In Training RDHStructural Engineer In TrainingOakland, CA$75,000–$98,000 / yearThe Structural Engineer (EIT) role requires knowledge of structural engineering principles, structural engineering analysis, and knowledge of common construction material and their properties. Our core area of business is the integration of building science engineering, architecture, and construction management to optimize the performance of the building enclosure (walls, windows and roofs).
Principal Software Engineer (Security & Policy Platform) (Remote) CiscoPrincipal Software Engineer (Security & Policy Platform) (Remote)San Jose, CaliforniaRemoteThe applicable full salary ranges for this position, by specific state, are listed below: New York City Metro Area: $250,600.00 - $416,900.00 Non-Metro New York state & Washington state: $241,400.00 - $371,000.00 * For quota-based sales roles on Cisco’s sales plan, the ranges provided in this posting include base pay and sales target incentive compensation combined. Minimum Qualifications: Bachelor’s degree or higher in Computer Science, Electrical Engineering, or a related technical field with 12+ years of experience designing and developing large-scale software, platform, or distributed systems.
Principal Engineer AI/ML AdobePrincipal Engineer AI/MLSan Jose, California$261,800–$379,100 / yearAdobe’s industry-leading offerings including Adobe Acrobat Studio, Adobe Express, Adobe Firefly, Creative Cloud, Adobe Experience Platform, Adobe Experience Manager, and GenStudio enable people and businesses to turn ideas into impact, powered by AI and driven by human ingenuity. In California, the pay range for this position is $261,800 - $379,100 At Adobe, for sales roles starting salaries are expressed as total target compensation (TTC = base + commission), and short-term incentives are in the form of sales commission plans.
Principal Engineer-Cloud Developer Stride SearchPrincipal Engineer-Cloud DeveloperPalo Alto, CaliforniaAs the world’s leading provider of financial services technology, we have a wealth of fascinating opportunities as well as petabytes of data for interesting data science challenges. We are a startup within an enterprise, focused on applied research that can be quickly brought to market as either production services or new financial services products.
Principal Engineer U.S.Principal EngineerPleasanton, California$257,000–$322,000 / yearYou will research, test, benchmark and evaluate new technologies, propose scaling solutions, collaborate with other teams to define, and build new features, optimize existing features while writing elegant code, coaching, and mentoring less experienced software engineers and communicating with people at all levels. As a Principal Software Engineer, you will play a crucial role in delivering high quality releases to our customers by defining application architecture, designing, developing, troubleshooting, maintaining, optimizing, and scaling BlackLine's cloud-based backend services and driving innovation into our product suite.
Principal Analog IC Design Engineer, High Speed Serdes CadencePrincipal Analog IC Design Engineer, High Speed SerdesSan Jose, CA$136,500–$253,500 / yearProficient design experience in most of the following SerDes circuit blocks: Driver; Receiver; Serializer; Deserializer; Phase Interpolator; Low jitter PLL; High Speed Clock Distribution; ADC and DAC; Bias and Bandgap; and Voltage Regulators. The Principal Analog IC Designer is responsible for the design and development of analog/mixed signal IC circuit blocks from initial concept/specification through final verification of conformance to customer specifications.
Principal Media Streaming Engineer The Walt Disney CompanyPrincipal Media Streaming EngineerSan Francisco, New YorkAs a Principal Media Streaming Engineer at Disney, you will be part of the Media Delivery team, which is responsible for the entire video encoding supply chain from content acquisition to delivery, consisting of an agile and responsive team of engineers that design, build, and support the systems and workflows powering our on-demand video streaming products. Job Posting Segment: PE - Media Engineering Job Posting Primary Business: PE - Media Platform - Media Experience Primary Job Posting Category: Media Streaming Engineer Employment Type: Full time Primary City, State, Region, Postal Code: New York, NY, USA Alternate City, State, Region, Postal Code: Date Posted: 2026-04-07
Principal Software Development Engineer - AI/ML Advanced Micro Devices IncPrincipal Software Development Engineer - AI/MLSan Jose, CAThe ideal candidate combines deep compiler expertise with hands-on experience optimizing AI workloads, and thrives in a fast-paced environment collaborating across architecture, kernel, runtime, and framework teams. You will work at the intersection of compiler technology, machine learning frameworks, GPU architecture, and performance engineering, contributing to the ROCm software ecosystem and ONNX Runtime execution stack.
Principal Product Engineer - Virtuoso Backend Flows Cadence Design Systems IncPrincipal Product Engineer - Virtuoso Backend FlowsSan Jose, CA$136,500–$253,500 / yearWe are looking for a Product Engineer to drive the development and customer adoption of advanced backend design flows in Cadence Virtuoso for leading-edge process nodes. BS degree in Electrical Engineering, Computer Engineering, or a related field with 9+ years of relevant experience, or MS degree with 7+ years of relevant experience.
Signal And Power Integrity Sr Principal Application Engineer CadenceSignal And Power Integrity Sr Principal Application EngineerSan Jose, CA$143,500–$266,500 / yearThe candidate should have expert-level knowledge of the Cadence toolset and/or equivalent competitor toolsets in the context of multiple flows including high speed signal and/or power design, signal and power integrity. The candidate will work closely with Sales Account Managers and technical field application engineers supporting technical campaigns by delivering workshops, product demonstrations, training, and onsite support.