Job Details

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 are 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, inspiring excellence, and encouraging teams and leaders to bring their best each day. In doing so, we create life-changing innovations that impact billions of lives around the world.

Microsoft Security is on a mission to make the world a safer place. As digital threats grow in scale and sophistication, our customers face increasing pressure to protect their data, users, and infrastructure. Microsoft Security delivers comprehensive, integrated solutions that help organizations defend against evolving threats, meet regulatory requirements, and operate securely across hybrid and multicloud environments. The Identity division is redefining how identity is used to secure access in a cloud-first, mobile-first world. Identity connects people, applications, and data and is central to modern security strategies. Our identity platform provides secure access for everyone and everything, helping organizations protect what matters most.

We are seeking a Senior Software Engineer to join our team building authentication libraries that power secure access for Microsoft applications—including Outlook, Word, Excel, Teams, and Authenticator—as well as thousands of third-party apps. These libraries are foundational to Microsoft's identity platform and are used by millions of developers and end users worldwide. In this role, you will design and implement secure, scalable, and high-performance authentication components that enable seamless single sign-on (SSO) and access to cloud resources. You will collaborate with product managers, security experts, and engineering teams across Microsoft to ensure our solutions meet high standards of security, reliability, and usability. This position offers a unique opportunity to work on highly visible, security-critical projects that directly impact Microsoft's core businesses and customer trust. You will gain expertise in authentication protocols, secure API design, telemetry, and threat mitigation, helping shape the future of identity and access management.

Microsoft's mission is to empower every person and organization to achieve more. We foster a culture of respect, integrity, and accountability, promoting inclusion where everyone can thrive at work and beyond.

This Hybrid Position is located at our Microsoft office in Redmond, Washington or Atlanta, Georgia. Relocation support will be provided, and successful candidates will need to relocate or reside within 50 miles of the field location.

Responsibilities

• Design and develop features to enhance developer experience and create delightful customer experiences
• Follow and promote modern software engineering practices through design reviews
• Engage with open source communities to deliver features that meet customer needs
• Improve test coverage, organize and implement integration tests, and resolve issues
• Consider testability, portability, reliability, and maintainability in development
• Collaborate with mentors and leaders to contribute to cohesive user experiences
• Focus on customer and partner needs through a data-driven approach

Qualifications

Required/Minimum Qualifications

• Bachelor's Degree in Computer Science or related field AND 4+ years of experience in software engineering with Java or Kotlin
• OR equivalent experience
• 2+ years of experience with Android development

Other Requirements: Ability to meet security screening requirements, including passing Microsoft background checks.

Preferred Qualifications

• Master's Degree in Computer Science or related field AND 6+ years of experience, or Bachelor's Degree with 8+ years of experience
• Familiarity with CI/CD pipelines
• Knowledge of security best practices and secure software implementation
• Deep understanding of authentication protocols like OAuth, OpenID Connect, SAML; experience building SDKs

Salary range varies by location, with specific ranges for different regions. Microsoft offers benefits and additional pay details can be found on their careers site. Applications close on August 18, 2025.

Microsoft is an equal opportunity employer and provides accommodations for applicants with disabilities.