Principal Security Engineer

Microsoft is hiring a Principal Security Engineer to join our fully remote team in the United States. As a Principal Security Engineer, you'll design, build, and ship reliable software that scales to millions of users. This is a full-time, work-from-home role open to candidates across the US (Remote — USA). About the role You'll design, build, and ship reliable software that scales to millions of users, partnering with a friendly, distributed team across US time zones. We care about outcomes over hours and give you the autonomy, tools, and support to do your best work from home. What you'll do: • Review pull requests and mentor teammates • Improve performance, reliability, and developer experience • Write clean, well-tested, and documented code • Develop, test, and maintain features across the stack • Collaborate with product and design on new initiatives What we offer: • Annual learning and professional development budget • Generous paid time off and company holidays • Comprehensive medical, dental, and vision coverage • Home office and wellness stipends • Paid parental leave How we work We're remote-first and async-friendly. Expect clear documentation, regular feedback, supportive teammates, and real opportunities to grow your career. Microsoft is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for everyone.

Minimum qualifications: • 7+ years of experience, including leading teams or projects • Solid understanding of data structures, APIs, and databases • Strong communication in a remote, async environment • Proficiency in one or more modern languages (TypeScript, Go, Python, or Java) • Experience with version control and CI/CD Nice to have: • A growth mindset and eagerness to keep learning • Familiarity with modern collaboration tools (Slack, Notion, Linear)