Principal Software Engineer

Microsoft • Redmond, WA

1d • Hybrid

About The Position

The 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 our competitors.
We’re looking for a Principal Software Engineer to join the Edge Core AI browser team, one of the most high-profile and dynamic areas within Microsoft AI (MAI). 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. Furthermore, our team keeps improving Edge core user experience to serve hundred million users every day.
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.
Starting January 26, 2026, Microsoft AI (MAI) 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.

Requirements

• 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, React, C, C++, C#, Java, JavaScript, or Python OR equivalent experience.
• 6+ years of experience designing and developing software, with a proven track record as a technical leader on complex projects.
• Ability to perform system-wide root cause analyses and drive measurable improvements.

Nice To Haves

• 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, React, C, C++, C#, Java, JavaScript, or Python OR 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, React, C, C++, C#, Java, JavaScript, or Python OR equivalent experience.
• 8+ years of experience designing and developing software, with a proven track record as a technical leader on complex projects.
• Solid expert with React.
• Prior experience shipping products at Microsoft or in similarly large-scale environments.

Responsibilities

• Design and deliver flagship Edge Copilot experiences in collaboration with product and design teams.
• Take end-to-end ownership on the User experience development, including Edge client and frontend
• Build new infrastructure in Edge Client to expose power of modern browser to multiple teams across MAI.
• Drive innovation at the intersection of browser technology and AI systems, defining the next generation of intelligent browsing.

What This Job Offers

• Job Type: Full-time
• Career Level: Principal
• Number of Employees: 5,001-10,000 employees