Principal Software Engineer - AI Experiences, Microsoft Edge

Job ID: 200049157Posted: 2026-08-18Location: United States, Washington, RedmondSalary: USD $142,800 - $274,800 per yearEmployment type: Full-TimeWork site: 4 days / week in-officeRole type: Individual ContributorTravel: Less than 25%Profession: Software EngineeringDiscipline: Software EngineeringCompany: MicrosoftOverviewThe Microsoft AI Experiences, Edge browser is a core strategic product and a key entry point to Microsoft’s new AI ecosystem, serving hundreds of millions of users daily. As the era of AI-powered browsers begins, Edge faces direct competition from Google, Perplexity, and OpenAI.We’re looking for exceptional Full Stack Engineers to join the Edge AI Companions and Agents Engineering team, one of the most high-profile and dynamic areas within Microsoft AI Experiences. Our mission is to leverage cutting-edge large language models (LLMs), context and prompt engineering to create innovative, intuitive, and state-of-the-art Copilot experiences that bring real value to browser users.Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.  By applying to this U.S. Redmond, WA position, you are required to be local to the Redmond area and onsite 4 days a week. Starting January 26, 2026, AI Experiences employees who live within a 50- mile commute of a designated Microsoft office in the U.S. or 25-mile commute of a non-U.S., country-specific location are expected to work from the office at least four days per week. This expectation is subject to local law and may vary by jurisdiction. ResponsibilitiesDesign and deliver flagship Edge Copilot experiences in collaboration with product and design teams.Build new infrastructure in Edge Client to expose power of modern browser to multiple teams across MAI.Take end-to-end ownership across the full stack, including Edge client, orchestration, prompting, and UX.Drive innovation at the intersection of browser technology and AI systems, defining the next generation of intelligent browsing.QualificationsRequired Qualifications:Bachelor's 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 PythonOR equivalent experience.Preferred Qualifications:Master's Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or PythonOR Bachelor's Degree in Computer Science or related technical field AND 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or PythonOR equivalent experience.Ability to perform system-wide root cause analyses and drive measurable improvements.Proficiency with AI tools and coding.Prior experience shipping products at Microsoft or in similarly large-scale environments.Software Engineering IC5 - The typical base pay range for this role across the U.S. is USD $142,800 - $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: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.