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Principal Software Engineer - Messaging Services - AI

Microsoft

$139,900 - $304,200
Sep 24, 2025
Redmond, WA, USA
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Microsoft Teams is looking to evolve its machine learning platform to deliver intelligent, context-aware features while ensuring high performance, scalability, and efficiency, by leveraging Generative AI, Large Language Models (LLMs), and a world-class AI stack to power Teams Copilot and other cutting-edge AI experiences.

Requirements

  • 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C, Java, JavaScript, or Python
  • 3+ years of experience in applied machine learning, deep learning, or natural language processing.
  • 2+ years of hands-on experience with ML frameworks (e.g., PyTorch, TensorFlow) and data processing pipelines.
  • 2+ years of experience deploying models to production in large-scale distributed systems or cloud environments (Azure, AWS, or GCP).
  • 8+ years of technical engineering experience, including designing, training, and deploying ML models at scale.
  • Experience working with large language models (LLMs), generative AI, or conversational AI systems.
  • Familiarity with distributed computing frameworks (Kubernetes, Spark, Ray) and MLOps practices.

Responsibilities

  • Design, develop, and deploy scalable machine learning models that enhance core collaboration and messaging experiences in Microsoft Teams.
  • Apply advanced techniques in deep learning, natural language processing, and generative AI to improve user experience and enable intelligent features.
  • Build and optimize ML pipelines for model training, evaluation, and deployment using Azure Machine Learning and other cloud-based services.
  • Prototype, experiment, and evaluate new ideas to deliver next-generation AI-powered features that redefine how teams communicate and collaborate.
  • Partner with research teams to bring cutting-edge ML innovations into production environments.
  • Collaborate with product engineering teams to integrate ML models into large-scale distributed systems, ensuring reliability and performance.
  • Establish best practices, frameworks, and reusable components for large-scale ML development across Microsoft and uphold the highest standards of availability, reliability, and scalability in ML systems—never compromising on engineering fundamentals.

Other

  • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role.
  • Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.
  • Microsoft is an equal opportunity employer.
  • If you need assistance and/or a reasonable accommodation due to a disability during the application or the recruiting process, please send a request via the Accommodation request form.