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Principal Software Engineer

Microsoft· Software Engineering
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Redmond, WA$142.8k - $274.8kfull-timePosted 1mo ago

About the role

Lead, architect, and develop solutions for AI security problems in Microsoft Copilot Security Engineering, including incident response, evaluation frameworks, security mitigations, and monitoring infrastructure. Balance hands-on delivery with team leadership, shaping technical strategy and driving cross-organizational collaboration to reduce real-world risk in next-generation AI.

Responsibilities

  • Directly accountable and responsible for the design and implementation of distributed systems that deliver security-focused improvements and mitigations, including telemetry, reproducibility, CI/CD safety gates, governance, and automated validations.
  • Set engineering direction for services and tooling supporting adversarial testing, model evaluation, risk measurement, and secure deployment workflows.
  • Ensure that security mitigations and security-driven architectural changes meet high bars for availability, reliability, security, performance, and scalability, providing durable protection across complex AI systems.
  • Champion best practices in threat modeling, observability, automation, and sustainable engineering.
  • Partner with security researchers, red teams, applied scientists, Responsible AI, platform engineering, and product teams to translate risks into actionable engineering plans and hardening strategies.
  • Work closely with PM/TPM partners on roadmaps, prioritization, and delivery commitments.
  • Represent Copilot Security Engineering in architecture reviews, risk assessments, and cross-team security initiatives.
  • Deliver engineering capabilities that increase detection coverage, accelerate time-to-mitigation, and provide auditable, repeatable evaluation workflows across AI systems.
  • Drive simplification, reusable patterns, and platform approaches that scale across Microsoft's AI ecosystem.
  • Communicate technical strategy, progress, risks, and results clearly to leadership and partner teams.

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, C++, C#, Java, JavaScript, or Python OR equivalent experience.

Skills

Required:Distributed systems design and implementationThreat modelingObservability and monitoringSecurity architectureCross-functional collaboration

Benefits

  • Domestic relocation assistance is available.
Last updated Sep 17, 2026. Interested? Apply on the company site.

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