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Principal Applied Scientist

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Microsoft Corporation

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Location:
China , Beijing

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

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Job Description:

As a Principal Applied Scientist, you will define the future of AI in Microsoft Teams—leading the design, development, and deployment of intelligent features that transform the way people collaborate worldwide. Beyond delivering groundbreaking AI experiences, you will set scientific vision for the team, mentor talent, and ensure our solutions exemplify rigor, responsibility, and ethical standards. In this role, you will operate at the intersection of research and product—applying state-of-the-art techniques to address real-world challenges at global scale. You will collaborate closely with engineering and product teams to translate the latest advances in AI areas into reliable, high-impact user experiences.

Job Responsibility:

  • Research, design, and prototype methods to leverage AI for product scenarios such as text understanding, summarization, dialogue, translation, content generation, and reasoning
  • Fine-tune, adapt, and optimize pre-trained AI for domain-specific tasks while balancing performance, efficiency, and cost
  • Develop scalable pipelines for data collection, cleaning, augmentation, and evaluation
  • Collaborate with product and engineering teams to translate applied research into production-quality features
  • Define and track key performance metrics for AI features, including accuracy, latency, robustness, and user satisfaction
  • Stay current with advances in generative AI, multimodal, and applied ML techniques, and bring forward innovative ideas to improve our products
  • Publish technical insights internally (and externally where appropriate) to advance organizational knowledge and thought leadership

Requirements:

  • Bachelor's Degree in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 6+ years related experience (e.g., statistics, predictive analytics, research)
  • OR Master's Degree in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 4+ years related experience
  • OR Doctorate in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 3+ years related experience
  • OR equivalent experience
  • MS or PhD in Computer Science, Machine Learning, Statistics, Applied Mathematics, or related field, or equivalent industry experience
  • 5+ years of experience in applied machine learning, natural language processing (NLP), or related domains
  • Strong knowledge of modern NLP methods, particularly transformers and transfer learning
  • Hands-on experience with at least one deep learning framework (e.g., PyTorch, TensorFlow, JAX)
  • Proficiency in Python and familiarity with ML tooling, experimentation, and evaluation frameworks
  • Experience with data preprocessing, feature engineering, and large-scale training/inference
  • Strong analytical and problem-solving skills, with ability to bridge research and product needs
  • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role
  • These requirements include but are not limited to the following specialized security screenings: Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter

Nice to have:

  • Master's Degree in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 9+ years related experience (e.g., statistics, predictive analytics, research)
  • OR Doctorate in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 6+ years related experience
  • OR equivalent experience
  • 7+ years of experience in applied science roles focused on AI/ML or NLP, with a track record of technical excellence and innovation
  • Experience fine-tuning or instruction-tuning large foundation
  • Knowledge of prompt engineering, retrieval-augmented generation (RAG), or multi-agent systems
  • Familiarity with distributed training, optimization, and deployment in production systems
  • Track record of published work in ML/NLP conferences or journals
  • Experience working in cross-functional teams, shipping AI-powered features to users

Additional Information:

Job Posted:
February 04, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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