Principal Software Engineer-Fullstack-CoreAI

Microsoft • Redmond, WA

22h

About The Position

Join the team building the future of AI at Microsoft.
Are you passionate about building the next generation of Agent Building experiences? The Microsoft Foundry within Microsoft Core AI is on a mission to empower developers and enterprises to design, deploy, and scale cutting-edge Generative AI systems and intelligent agents.
We're looking for a Principal Full Stack Software Engineer(UI Focused) to join our Microsoft Foundry Agents Platform team, where we’re creating intuitive and powerful agent-building experiences for developers and enterprises.
What you’ll work on:
Shape the end-to-end experience of our platform that integrates cutting edge LLMs from Providers such as OpenAI, Anthropic, Phi, Meta, OSS and build tools that power robust agentic workflows and enterprise automation.
Who we’re looking for:
Full stack engineers with strong skills in React, Next.js/Remix, TypeScript , Node.js and backend service development. We value engineers who leverage AI-assisted development tools to achieve exceptional velocity and quality—and who are passionate about LLMs, GenAI, and Azure.
Why join us?
Work on high-impact, large-scale AI products alongside world-class talent. Help define how the world interacts with agents and intelligent systems.
Learn more about Microsoft Foundry:
Microsoft Foundry - Everything you need to build AI apps & agents
Microsoft Foundry Documentation

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.
• 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 Haves

• Master's Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR 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 equivalent experience.
• 6+ years of experience in platform or front-end development using multiple languages and frameworks, including JavaScript, TypeScript, and React- Deep understanding of modern front-end technologies such as NextJS / Remix, SSR, Web Components, and performance optimization techniques
• Demonstrated proficiency with AI-assisted software development tools and workflows (e.g., AI coding agents, LLM-powered development environments) to solve hard engineering and customer problems
• Experience working on large-scale, UI-intensive product development
• Passion for machine learning, artificial intelligence, and data science

Responsibilities

• Leverage modern AI-assisted development practices and tooling to accelerate delivery while maintaining high code quality
• Architect full stack solutions that span from user experience through to backend data and service layers
• Develop software using languages such as TypeScript, JavaScript, React, and others
• Design, develop, and maintain backend services and APIs that support agentic workflows and platform capabilities
• Collaborate with partner teams to comprehend, define, enhance, and develop AzureML capabilities
• Respond, resolve, and integrate customer feedback with agility and dedication
• Lead by example, adhering to best engineering practices, raising the quality bar, and improving the team's response to customer incidents

What This Job Offers

• Job Type: Full-time
• Career Level: Principal
• Number of Employees: 5,001-10,000 employees