New

Principal Software Engineer (CoreAI)

Microsoft
$139,900.00 - $274,800.00 / yr
United States, Washington, Redmond
Mar 13, 2026
Overview Core AI is at the forefront of Microsoft's mission to redefine how software is built and experienced. Weare responsible forbuildingthe foundationalplatforms, services, programming models, and developer experiences that power the next generation of applications using Generative AI. Our work enables developers and enterprises to harness the full potential of AI to create intelligent, adaptive, and transformative software. Enterpriseexperienceteamowns an Azure Resource Provider whichisresponsible forbuilding the foundation of Microsoft FoundryPlatform, enabling businesses and developers to create their own AIAgentsolutions. We deliver a high-performance, reliable platform that meets strict enterprise requirements, including security, governance, and data isolation,while driving customer engagement through agent tools and capabilities. In this role, you will design and develop platform services that powerMicrosoftFoundry's enterprise capabilities, including agent tooling frameworks, authentication flows, and control plane APIs. You will deliver advanced security features such as private networking, agent identity framework,customer-managed keysfor data encryption, and contribute to infrastructure reliability and live site operations. At Microsoft, our mission is to empower every person and every organization on the planet to achieve more. We live this mission every day through a culture that embraces a growth mindset, values diverse perspectives, and encourages continuous learning. We believe in creating an environment where individuals bring their best selves to work, collaborate openly, and build technology that makes a meaningful impact. Join us and help shape the future of the world. Responsibilities Define technical vision and drive strategic direction forMicrosoftFoundry's enterprise platform Design and develop platform services including agent tooling frameworks, authentication flows, and control plane APIs Deliver unified APIs and advanced security features (private networking,data encryption, cacheresiliency) Lead cross-org collaboration with partner teams across Azure,M365, and Security to deliver end-to-end solutions Champion AI-first development practices and serve as a role model forleveragingAI to accelerate innovation and productivity Drivelivesiteexcellence through infrastructure reliability and operational excellence Qualifications Required Qualifications: Bachelor's Degree in Computer Scienceor related technical field AND6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience Other Requirements: Abilityto meet Microsoft,customerand/or government security screening requirements arerequiredfor this role. These requirements include but are not limited to the following specialized security screenings: Microsoft Cloud Background Check: This position will berequiredto pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter. Preferred Qualifications Strong advocate for AI-first development with hands-on experienceleveragingAI tools to accelerate engineering productivity 6+yearstechnical engineering experience designing and deliveringhighly available, large-scale cloud services and distributed systems. 1+ years of technical engineering experience with machine learning or Artificial Intelligence (AI) systems Software Engineering IC5 - The typical base pay range for this role across the U.S. is USD $139,900 - $274,800 per year. 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. Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here: https://careers.microsoft.com/us/en/us-corporate-pay This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled. Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.