Microsoft Principal Software Engineer - Architecture & Design 

Taiwan, Taoyuan City 

903600806

We are looking to hire a Principal 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.

Required/minimum 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#, Rust, Go, Java or C++
  • OR equivalent experience.

• 6+ years of experience designing, developing, or maintaining, with applied knowledge of,,, andsecure coding practices

• 6+ years of experience designing, building, and operating,oron platforms such as,,, or, withproduction ownership

• 5+ years of experience building systems with emphasis on,, and, including experience with,, and.​

Other requirements

• Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include, but are not limited to the following specialized security screenings: Microsoft Cloud Background Check: This position will be required to pass the Microsoft background and Microsoft Cloud background check upon hire/transfer and every two years thereafter.

Additional or 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#, Rust, Go, Java or C++
  • 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, C#, Rust, Go, Java or C++
  • OR equivalent experience.
• 8+ years of experience designing, developing, or maintaining, with applied knowledge of,,, andsecure coding practices
• 8+ years of experience designing, building, and operating,oron platforms such as,,, or, withproduction ownership

• 8+ years of experience building systems with emphasis on,, and, including experience with,, and
  performance optimization.​

• 5+ years architecting distributed systems.
• Proven experience in building scalable and reliable software solutions.
• Demonstrated ability to write clean, maintainable, and efficient code.
• Sound understanding of cloud infrastructure and services.
• Exceptional problem-solving and analytical skills: Ability to diagnose issues, identify root causes, and implement effective solutions.

Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here:

• Design and develop features for large scale distributed software services and solutions.
• Communicate technical details clearly across organizational boundaries and customers.
• Adhere to modern software engineering practices through design and code reviews.
• System design through well-defined interfaces across multiple components, code reviews, leveraging data/telemetry to make decisions.
• Develop “best-in-class” engineering for our services by ensuring that the services and the components are well-defined and modularized, secure, reliable, diagnosable, actively monitored and reusable.
• Write clean and optimized code, improve test coverage for services, organize and implement integration tests, and resolve problem areas. Consider testability, portability/monitoring, reliability, and maintainability, and understand when code is ready to be shared and delivered.
• Gain a working understanding of Microsoft as a business and collaborate with mentors and leaders to contribute to cohesive, end-to-end experiences for our users. Focus on customer/partner needs through a data driven approach.

  Other

  • Embody our