Principal Machine Learning Engineer @ Microsoft
placeRedmond, Washington, United States
attach_money $150,000
businessOn Site
scheduleFull-time
Posted 12 hours ago
Your Application Journey
Interview
Email Hiring Manager
***** @microsoft.com
Recommended after applying
Job Details
About the Role
As a Principal Machine Learning Engineer at Microsoft, you will be part of the OneDrive & SharePoint (ODSP) Applied Science team. Your mission is to invent the AI‑native knowledge substrate for Microsoft 365. You will drive ideas from ideation to impactful results in a fast-paced environment.
Key Responsibilities
- Design, build, and deploy large-scale machine learning and agentic systems.
- Develop production-grade solutions including data pipelines, large-scale training, model serving, and performance optimization.
- Collaborate with a team of passionate engineers and applied scientists.
- Apply expertise in training or fine-tuning large language models, reinforcement learning, agentic AI architectures, and inference optimization.
- Ensure compliance with Microsoft, customer, and government security screening requirements.
Security Requirements
This role requires passing the Microsoft Cloud background check upon hire/transfer and every two years thereafter.
Key skills/competency
- Machine Learning
- Large Language Models
- Data Pipelines
- Model Serving
- Performance Optimization
- Reinforcement Learning
- Agentic AI
- Applied Science
- Security Compliance
- Production Systems
How to Get Hired at Microsoft
🎯 Tips for Getting Hired
- Customize your resume: Highlight ML systems and production experience.
- Showcase projects: Emphasize large language model expertise.
- Network strategically: Connect with Microsoft employees on LinkedIn.
- Prepare for interviews: Practice technical questions and system design.
📝 Interview Preparation Advice
Technical Preparation
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Review large language model training basics.
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Practice optimizing model serving performance.
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Study scalable data pipeline architectures.
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Brush up on reinforcement learning techniques.
Behavioral Questions
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Explain past collaboration in high-pressure environments.
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Describe solving complex technical challenges.
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Discuss balancing security and innovation.
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Share experiences with continuous system improvement.
Frequently Asked Questions
What technical skills are crucial for a Principal Machine Learning Engineer at Microsoft?
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How important is experience with reinforcement learning for this Microsoft role?
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What security clearances are required for the Principal Machine Learning Engineer at Microsoft?
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How does Microsoft's ODSP team integrate AI into Microsoft 365?
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What steps can candidates take to prepare for a Microsoft interview in this role?
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