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Principal Software Engineer - Backend

Microsoft

$139,900 - $304,200
Oct 30, 2025
Redmond, WA, US
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Microsoft Security aims to make the world a safer place by reshaping security and empowering users, customers, and developers with a security cloud that protects them with end-to-end, simplified solutions. The Conditional Access team is responsible for enabling admins to configure and manage security policies, enforcing these policies to ensure individual authentication requests meet the security bar for token issuance or denial, thereby impacting the security of billions of authentication attempts and the IDNA business.

Requirements

  • 6+ years of experience designing, developing, or maintaining secure software systems, with applied knowledge of authentication, data protection, access control *, and secure coding practices
  • 3+ years of experience building systems with emphasis on reliability, durability, and operational efficiency, including experience with live site operations, incident response, and performance optimization *.
  • 8+ years of experience designing, developing, or maintaining secure software systems, with applied knowledge of authentication, data protection, access control * , and secure coding practices
  • Experience with high scale systems

Responsibilities

  • Designing and implementing elegant solutions to complex problems
  • Mentoring and guiding other engineers on the team, keeping a high bar and ensuring we are building for the future.
  • Working across teams on designs, protocols, and approaches, coordinating work and ensuring alignment.
  • Ensure the reliability and uptime of our services, ensuring proper monitoring, metrics, and resilience practices.

Other

  • Embody our culture and values
  • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role.
  • Proficient communicator, can effectively author design documents, lead discussions, and help oversee and coordinate others work
  • Microsoft is an equal opportunity employer.