Senior Software Engineer - Identity & Security

Security represents the most critical priorities for our customers in a world awash in digital threats, regulatory scrutiny, and estate complexity. Microsoft Security aspires to make the world a safer place for all. We want to reshape security and empower every user, customer, and developer with a security cloud that protects them with end to end, simplified solutions. The Microsoft Security organization accelerates Microsoft’s mission and bold ambitions to ensure that our company and industry is securing digital technology platforms, devices, and clouds in our customers’ heterogeneous environments, as well as ensuring the security of our own internal estate. Our culture is centered on embracing a growth mindset, a theme of inspiring excellence, and encouraging teams and leaders to bring their full potential each day. In doing so, we create life-changing innovations that impact billions of lives around the world. We are looking to hire a Senior Software Engineer to join the Entra External ID team. Our mission is to secure and simplify external identity experiences for organizations worldwide. Entra External ID enables businesses to connect with customers, partners, and developers through secure, customizable, and scalable identity solutions. External identity is one of the fastest-growing areas in identity and access management. We face unique challenges that require innovation and deep technical expertise: 1. Customization & Extensibility: Build a platform that allows enterprises to tailor sign-up, sign-in, and user journeys to their brand and compliance needs—while maintaining security and performance at scale. 2. Sign-Up & Onboarding Experiences: Design frictionless, secure onboarding flows for millions of external users across diverse industries and geographies, balancing usability with robust authentication. 3. Developer Experience: Deliver world-class APIs, SDKs, and documentation that empower developers to integrate identity seamlessly into their apps. Our goal is to make EEID the most developer-friendly identity platform in the industry. 4. Scale & Performance: Architect services that handle 100s of millions of monthly users 5. Security & Compliance: Implement advanced authorization models (RBAC, ABAC) and zero-trust principles to protect sensitive data and meet regulatory requirements worldwide.