Principal Applied Scientist at Microsoft

Redmond, Washington, United States -

Full Time

Start Date

Immediate

Expiry Date

26 Jan, 26

Salary

0.0

Posted On

28 Oct, 25

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Deep Learning, NLP, Multimodality Model, Model Optimization, Model Training, Reinforcement Learning, Data Curation, A/B Testing, Orchestrator Reasoning, Model Development, Evaluation, Metrics, Experimentation, Transformative Features, Collaborative Work, Engineering

Industry

Software Development

Description

Come build the core of Microsoft Copilot for enterprise with Microsoft Turing Team, where you'll join a collaborative group of applied scientists and engineers pushing the frontier of large language models (LLMs) to improve the productivity of hundreds of millions of users around the world. Our team is responsible for the core systems that power Microsoft 365 Copilot Chat delivering intelligence, quality, and transformative new features. We work at the intersection of research and engineering—advancing orchestrator reasoning, training next-generation models, and shipping impactful, model-driven experiences in Microsoft 365 Copilot. As a Principal Applied Scientist, you will: * Evolve our orchestrator to reason more effectively, respond faster, and support new capabilities in multi-modality, agent-based systems, and beyond * Advance the state of the art in model training—including post-training methods such as fine-tuning and reinforcement learning, high-quality data curation, and experimentation with frontier model training * Build and deliver model-driven features from concept to production—spanning model development, evaluation, metrics, and A/B testing Recent launches like Analyst Agent in Microsoft 365 Copilot showcase the breadth and depth of impact you’ll drive across the stack. We’re hiring applied scientists who are passionate about deep learning, NLP (Natural Language Processing), multimodality model, and model optimization. Come build the next generation of AI with us. Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.

Responsibilities

As a Principal Applied Scientist, you will evolve the orchestrator for improved reasoning and response capabilities while advancing model training techniques. You will also build and deliver model-driven features from concept to production.