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Principal Research Engineer - Multimodal AI

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Microsoft Corporation

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Location:
United States , Redmond ▼

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

139900.00 - 274800.00 USD / Year
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Job Description:

Microsoft Research (MSR) AI Frontiers lab is seeking applications for the position of Principal Research Engineer – Multimodal AI to join their team in Redmond, WA or New York City, NY. We are seeking a Principal Research Engineer – Multimodal AI to join our team and lead engineering efforts on the advancement of Generative AI and Multimodal Model (MLM) technologies. As a Principal Research Engineer, you will play a crucial role in developing, improving, and exploring the capabilities of Multimodal AI and agentic models. Your work will have a significant impact on the development of cutting-edge technologies, advancing state-of-the-art and providing practical solutions to real-world problems. Our ongoing research areas encompass but are not limited to: Reasoning method for Multimodal models; New multimodal model architectures and training methods; Action models for automating web and computer tasks; Orchestration and multi-agent systems: automated orchestration between multiple agents incorporating human feedback and oversight; Evaluation and Understanding of model and agent capabilities. The AI Frontiers lab at Microsoft Research is charted with ambitious research goals for advancing Artificial Intelligence (AI) capabilities in several key areas including modeling, algorithms, reasoning and agentic AI. Our lab offers a vibrant environment for cutting-edge multidisciplinary research, including an open publication policy and close links to top academic institutions around the world.

Job Responsibility:

  • Design, develop, execute, and implement technology research projects in collaboration with other researchers, engineers, and product groups
  • Be a part of research breakthroughs in the field and play a crucial role in developing, improving, and exploring the capabilities of Large Language Models (LLMs), reasoning and agentic AI

Requirements:

  • 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
  • 2+ year(s) experience developing with Python and Pytorch/JAX
  • 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 Master's or Doctorate in Computer Science or relevant field AND 10+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
  • OR equivalent experience
  • Experience with architecture and optimizations for large language models
  • Hands-on work in debugging and profiling Pytorch distributed code
  • Understanding of working of CUDA kernels
  • Experience with pre-training, mid-training and/or post-training pipelines for language and/or multimodal models
  • Foundational understanding of reinforcement learning and key challenges in the field
  • Experience with verl, Ray, Megatron and/or vLLM is a significant plus
  • Any experience in building scalable services can be highly complementary

Additional Information:

Job Posted:
January 05, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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