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Microsoft

Principal Software Engineer

Redmond, WA,US, US

Microsoft is hiring a Principal Software Engineer in Redmond, WA,US, US. Posted September 16, 2026.

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Job at a glance

Company
Microsoft
Location
Redmond, WA,US, US
Workplace
On-site
Employment
Full-time
Sector
Engineering & Technology
Posted
September 16, 2026
Apply by
March 15, 2027

About the job

We are looking to hire a Principal Software Engineer to join our team to develop and operate next generation, world-class product to secure data with AI speed. -AI-driven development & code quality: Leverages AI across the SDLC and leads high-quality coding practices, ensuring secure, scalable, maintainable code through strong reviews, testing, and best practices. -Reliability & live-site excellence: Uses telemetry, debugging, and root cause analysis to proactively prevent issues, improve system health, and drive incident resolution as DRI. -Architecture & design leadership: Owns or review complex system design and architecture, balancing performance, scalability, cost, and trade-offs. -Security, compliance & safe deployment: Ensures adherence to security, privacy, and compliance standards while driving automation, CI/CD, and safe, efficient deployments. -Collaboration & continuous improvement: Partners cross-functionally to deliver end-to-end solutions, incorporates customer insights, and continuously improves systems, processes, and engineering outcomes. Required: 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. 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, C++, C#, Java, JavaScript, or Python 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, C++, C#, Java, JavaScript, or Python OR equivalent experience. Preferred: Large scale data processing in distributed system experience. Experience at data analysis and statistical modeling: Regression, classification, clustering, predictive modeling, and machine learning algorithms.