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Principal Software Engineer

Microsoft· Software Engineering
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BangaloreFull-timePosted 2mo ago

About the role

Principal Software Engineer in the Windows Enterprise and Security (ENS) team focusing on design and delivery of security and enterprise features across Windows ecosystem, collaborating with partner teams globally to build secure-by-design, reliable-by-default solutions.

Responsibilities

  • Design and implement Windows security and enterprise capabilities that ship at scale across client and/or server.
  • Build features across foundational areas such as hardware-backed security, cryptography, identity/authentication, and enterprise management experiences.
  • Produce robust, testable, maintainable code with strong engineering rigor, including diagnostics and operational readiness suitable for global rollout.
  • Partner with security and platform stakeholders to ensure designs align to secure-by-default principles and meet compliance/assurance expectations.
  • Collaborate with ENS partner teams in Redmond and across Windows engineering to deliver shared roadmaps and aligned technical outcomes.
  • Drive end-to-end execution: requirements → design → implementation → validation → deployment, with an ownership mindset.
  • Leverage AI assisted and agentic engineering workflows to accelerate design, debugging, testing, and documentation—while maintaining strict verification and security quality bars.
  • Establish reusable patterns (e.g., prompt/playbook snippets, validation checklists, automation hooks) that make AI usage repeatable and safe for the team.
  • Improve engineering efficiency by applying AI to root cause analysis and debugging, test generation and validation strategy, and automation to reduce recurring toil.

Qualifications

  • 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, C++, C#, Java, JavaScript, or Python OR equivalent experience.
  • Solid experience building and shipping production software in one or more systems languages (e.g., C/C++/C#/Rust) and debugging complex systems.
  • Experience in one or more: platform security, cryptography, identity/authentication, secure boot/TPM, device security, enterprise policy/management, licensing/entitlement systems.
  • Experience designing and developing features in large-scale, performance-sensitive systems, ideally with Windows / OS / systems depth.

Skills

Required:Security engineering for Windows OSFoundational security areasEngineering excellence and operability

Benefits

  • Public Key Cryptography/Post Quantum Cryptography (PQC) is a plus (preferred).
  • Track record of driving engineering quality: testing strategy, telemetry, reliability, and operational excellence.
  • Comfort partnering across geographies and influencing designs with stakeholders across engineering, security, and program leadership.
Last updated Jul 30, 2026. Interested? Apply on the company site.

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