Principal Data Scientist - AI Infrastructure

Principal Data Scientist - AI Infrastructure

United States, Multiple Locations, Multiple Locations

Job description

Company and benefits

Job number

200045421

Date posted

Oct 02, 2026

Work site

0 days / week in-office – remote

Travel

Less than 25%

Profession

Research, Applied, & Data Sciences

Discipline

Data Science

Role type

Individual Contributor

Employment type

Full-Time

Overview

As a Principal Data Scientist – AI Infrastructure Data team member, you will own end-to-end delivery of strategic data science projects and partner with customers and internal teams to design and implement advanced analytics and AI solutions that create measurable business impact. This hands on role blends deep technical expertise with consulting and stakeholder engagement, enabling you to influence decisions and guide adoption of data-driven strategies.

In this role, you will focus on data science for AI infrastructure: turning fleet-scale telemetry, experimentation, and partner requirements into decisions that improve reliability, efficiency, capacity planning, and customer outcomes across Microsoft’s AI systems.

The AI Infrastructure team builds, operates, and optimizes one of the largest AI fleets in the world. Data Scientists use fleet-scale telemetry, experimentation, and modeling to inform infrastructure planning, systems design, product tradeoffs, and operational decisions. You will work across technical domains and partner organizations to identify the highest-impact opportunities, quantify tradeoffs, and drive action from insight to implementation.

The AI Infrastructure Data team is full stack owning telemetry collection, data infrastructure, processing, experimentation and measurement for a wide range of partner teams, systems and business processes. Close collaboration with Data Engineers, Data Infrastructure SWE and SMEs are a day-to-day component of our model. The team regularly interacts with hyperscale datasets, systems and challenges to deliver impact to Microsoft’s most important initiatives.

At Microsoft, our mission to empower every person and every organization on the planet to achieve more guides how we partner with customers to deliver trusted, impactful solutions. With a growth mindset culture, we innovate responsibly and measure success by shared progress people, teams, and customers. Join us to do meaningful work that changes the world and helps shape what’s next for everyone.

Responsibilities

• Business Understanding & Impact

• Own delivery of complex, high-impact data science and AI solutions for strategic consulting engagements.

• Collaborate with stakeholders to define business problems and translate them into actionable AI-driven solutions.

• Data Preparation & Modeling

• Acquire, clean, and prepare large datasets for modeling.

• Build and deploy predictive and prescriptive models using modern machine learning techniques.

• Write efficient, maintainable code and ensure scalability for production environments.

• Insight, Communication & Enablement

• Present findings to senior stakeholders using compelling storytelling and visualizations.

• Simplify complex ML/AI concepts for diverse audiences to drive understanding and adoption.

• Collaboration & Consulting

• Act as a trusted advisor to internal teams and customers, ensuring solutions meet business needs.

• Promote responsible AI practices, including fairness, transparency, and explainability in model and application development.

• Stay current with emerging AI technologies, frameworks, and tools