Principal Software Engineer - AI Safety and Security Microsoft CorpPrincipal Software Engineer - AI Safety and SecurityRedmond, WA$142,800–$274,800 / yearYou will lead through code and ideas: defining detailed architectures, building large-scale data and detection systems, working through security and privacy reviews, and partnering with cross-company leaders, product engineers, applied scientists, threat hunters, and incident responders from early exploration through production operation. Required Qualifications: Bachelors Degree in Computer Science or related technical field AND 6+ years technical engineering experience, including significant ownership of distributed data, platform, or security products with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python.
Principal Program Manager - Server Ecosystem and Customer Engagements Microsoft CorpPrincipal Program Manager - Server Ecosystem and Customer EngagementsRedmond, WA$142,800–$274,800 / yearIt requires a experienced program leader who can shape organizational direction, transform partner engagement models, drive feature adoption at scale, and influence engineering teams, product groups, and external partners to deliver the best experiences for Windows Server customers, including emerging scenarios such as AI and inference infrastructure. Required/Minimum Qualifications: Bachelor's Degree in Engineering, Computer Science, or a related field AND 8+ years of experience in a relevant technical domain, such as cloud services or security, technical sales, marketing, product management, customer support, or cross-group or cross-functional engineering; OR equivalent experience.
Principal Quantum Systems Modeling Engineer Microsoft CorpPrincipal Quantum Systems Modeling EngineerRedmond, WA$142,800–$274,800 / yearDoctorate in Physics, Engineering, or related field AND 3+ years experience in industry or in a research and development environment; OR Master's Degree in Physics, Engineering, or related field AND 6+ years experience in industry or in a research and development environment; OR Bachelor's Degree in Physics, Engineering, or related field AND 8+ years experience in industry or in a research and development environment; OR equivalent 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.
Principal Software Engineer-M365 Copilot Microsoft CorpPrincipal Software Engineer-M365 CopilotRedmond, WA$142,800–$274,800 / yearYou will set technical direction, partner with research and engineering teams to deliver best-in-class solutions, align senior stakeholders, drive the design of custom LLM architectures for product needs, and design the backend, data, and ML systems that empower teams across the organization - while mentoring engineers and raising the technical bar. The Copilot and Agents Core Office of the CTO shapes intelligent experiences across Microsoft 365 by bridging research and engineering, building core agent capabilities, incubating emerging technologies, and helping product teams scale high-quality AI features.
NewPrincipal Product Manager, Content Ranking & Personalization AI MicrosoftPrincipal Product Manager, Content Ranking & Personalization AIRedmond, WA$165,600–$296,400 / yearYou will define personalization and ranking strategy end to end: how user interests are represented, how candidates are retrieved, how content understanding and user signals become ranking features, how models are trained and evaluated, and how the final ranked experience trades off relevance, freshness, quality and long-term user value. 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 $220,800 - $331,200 per year.
Principal Machine Learning Engineer, Ads Modeling Unity Software IncPrincipal Machine Learning Engineer, Ads ModelingBellevue, WA$250,300–$325,400 / yearWhile specific benefits vary, here are some of the ways we strive to take care of our eligible team members globally: Comprehensive health, life, and disability insurance | Commute subsidy | Employee stock ownership | Competitive retirement/pension plans | Generous vacation and personal days | Support for new parents through leave and family-care programs | Office food snacks | Mental Health and Wellbeing programs and support | Employee Resource Groups | Global Employee Assistance Program | Training and development programs | Volunteering and donation matching program. This position requires the incumbent to have a sufficient knowledge of English to have professional verbal and written exchanges in this language since the performance of the duties related to this position requires frequent and regular communication with colleagues and partners located worldwide and whose common language is English.
Principal Corporate Counsel Microsoft CorpPrincipal Corporate CounselRedmond, WA$132,200–$232,800 / yearAdditional or preferred qualifications: Experience handling agency charges and investigations and pre-litigation disputes in the U.S. Experience advising corporate clients regarding employment and/or labor law topics in the U.S. Experience litigating employment claims in court, agency hearings, and/or arbitrations in the U.S. Demonstrated ability to work efficiently, manage competing priorities, and exercise good judgment in making swift decisions with imperfect information; Experience contributing to the development of programs to deliver legal services at scale; and. 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 $165,800 - $248,600 per year.
NewPrincipal Product Marketing Manager SiteimprovePrincipal Product Marketing ManagerBellevue, Washington$140,000–$157,500 / yearYou’ll partner closely with GTM teams, including Product, Sales, Marketing, and Customer Success, to translate deep domain expertise into compelling narratives, differentiated positioning, and revenue-driving programs. At Siteimprove, Product Marketing plays a critical role in driving business impact—connecting product innovation to market needs, shaping category narratives, and enabling our go-to-market teams to win.
Principal Quantum Systems Architect Microsoft CorpPrincipal Quantum Systems ArchitectRedmond, WA$165,600–$296,400 / yearThere 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 $220,800 - $331,200 per year. Citizenship & Citizenship Verification: This role will require access to information that is controlled for export under export control regulations, potentially under the U.S. International Traffic in Arms Regulations (ITAR) or Export Administration Regulations (EAR), the EU Dual Use Regulation, and/or other export control regulations.
Principal SoC Design Engineer Microsoft CorpPrincipal SoC Design EngineerRedmond, WA$142,800–$274,800 / yearThe tasks will include working on verification of Intellectual Property (IP) microarchitecture specification, Register Transfer Level (RTL) design, System on Chip (SOC) integration including clocking and resets, Synthesis and static checks such as Lint and Clock/Reset domain crossings. 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.
Principal Technical Product Manager Microsoft CorpPrincipal Technical Product ManagerRedmond, WA$142,800–$274,800 / yearOther Requirements: Citizenship & Citizenship Verification: This role will require access to information that is controlled for export under export control regulations, potentially under the U.S. International Traffic in Arms Regulations or Export Administration Regulations, the EU Dual Use Regulation, and/or other export control regulations. 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.
Principal Software Engineer, Minecaft Creator - Minecraft Microsoft CorpPrincipal Software Engineer, Minecaft Creator - MinecraftRedmond, WA$142,800–$274,800 / yearThere 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. Required Qualifications: Bachelors Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python.
Principal AI Software Engineer Microsoft CorpPrincipal AI Software EngineerRedmond, WA$142,800–$274,800 / yearDevelop proof-of-concepts and evaluation frameworks to assess memory-tiering architectures for AI inference, including CXL pooled memory, memory expansion solutions, context-memory platforms, SSD-backed cache tiers, and hardware/software co-designed approaches for reducing inference TCO. Analyze end-to-end data movement across GPU, CPU, storage, and networking subsystems, identifying optimization opportunities within GPU Direct Storage (GDS), GPU Direct RDMA (GDR), peer-to-peer memory transfers, and distributed inference pipelines.
Principal Machine Learning Engineer - Search & Intelligence Atlassian CorpPrincipal Machine Learning Engineer - Search & IntelligenceSeattle, WAAs a Principal Machine Learning Engineer, you will lead the development and implementation of cutting-edge machine learning algorithms and sophisticated models that power AI capabilities across Atlassian's products and services. A track record of solving ambiguous and complex problems by navigating uncertainty, breaking challenges into manageable components, and developing innovative, practical solutions.
Principal Signal Integrity Simulation Engineer Microsoft CorpPrincipal Signal Integrity Simulation EngineerRedmond, WA$142,800–$274,800 / yearThere 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. Citizenship & Citizenship Verification: This role will require access to information that is controlled for export under export control regulations, potentially under the U.S. International Traffic in Arms Regulations (ITAR) or Export Administration Regulations (EAR), the EU Dual Use Regulation, and/or other export control regulations.
Principal AI Network Hardware Systems Engineer Microsoft CorpPrincipal AI Network Hardware Systems EngineerRedmond, WA$142,800–$274,800 / yearThe Platform Systems Engineering (PSE) team is seeking a Principal AI Network Hardware Systems Engineer to lead the architecture, bring-up, validation, optimization, and deployment of networking infrastructure for Microsofts MAIA AI platform. 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.
Principal Software Engineer - Blade Server BMC Firmware Development Microsoft CorpPrincipal Software Engineer - Blade Server BMC Firmware DevelopmentRedmond, WA$142,800–$274,800 / yearThere 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. 6+ years of experience with any of the following: Platform initialization, low level drivers for peripherals such as PCIe, I2C, eMMC, SPI, USB, UARTs, Memory Management, Scheduling, Interrupts or multi-threading technologies.
Principal Security Program Manager Microsoft CorpPrincipal Security Program ManagerRedmond, WA$142,800–$274,800 / yearRequired Qualifications: Masters Degree in Statistics, Mathematics, Computer Science, Risk Management, Cyber Security, or related field AND 4+ years experience in software development lifecycle, large scale computing, threat modeling, cyber security, or anomaly detection OR Bachelors Degree in Statistics, Mathematics, Computer Science, Risk Management, Cyber Security, or related field AND 6+ years experience in software development lifecycle, large scale computing, threat modeling, cyber security, or anomaly detection. The ideal candidate brings experience with native code (C/C++), a strong understanding of cloud platform architecture, from virtualization through guest virtual machines, and hands-on experience with penetration testing and offensive security techniques, including code auditing, fuzzing, and finding creative ways to challenge security assumptions.
Principal UX Researcher Microsoft CorpPrincipal UX ResearcherRedmond, WA$142,800–$274,800 / yearRequired Qualifications: Doctorate in Human-Computer Interaction, Human Factors Engineering, Computer Science, Technical Communications, Information Science, Information Architecture, User Experience Design, Behavioral Science, Social Sciences, or related field AND 3+ years User Experience Research experience. OR Bachelors Degree in Human-Computer Interaction, Human Factors Engineering, Computer Science, Technical Communications, Information Science, Information Architecture, User Experience Design, Behavioral Science, Social Sciences, or related field AND 6+ years User Experience Research experience.
Principal Software Engineer, M365 Enterprise Search Platform Microsoft CorpPrincipal Software Engineer, M365 Enterprise Search PlatformRedmond, WA$142,800–$274,800 / yearThere 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. As a Principal Software Engineer on the M365 Enterprise Search Platform team, you will play a key role in shaping the retrieval and grounding technologies that power the Retrieval-Augmented Generation (RAG) behind Microsoft 365 Copilot.