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# Member of Technical Staff, Principal Full Stack Engineer - Copilot Applications

- **Company:** Microsoft
- **Location:** Mountain View, CA, United States
- **Experience:** Expert
- **Salary:** $139,900.0 - $274,800.0
- **Contract:** Permanent contract
- **Skills:** C (Programming Language), Java (Programming Language), JavaScript (Programming Language), Artificial Intelligence, C Sharp (Programming Language), C++ (Programming Language), Python (Programming Language), TypeScript, ReactJS, Backend, Information Technology, Front End Software Development, Web Api
- **Published:** June 2, 2026
- **Apply:** https://dejobs.org/x/x/10CDC5E812894640BE66F300ED0430C5/job/

## About the Role

* 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., * 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.
 * Strong full-stack fundamentals across frontend (React, TypeScript) and backend systems
 * Proficiency in Python or similar languages for backend development
 * Experience building scalable web APIs and services
 * Comfort with ambiguity and the ability to move fast in loosely-defined problem spaces
 * Taste for great product experiences and a drive to ship work that matters

## Description

You'll build revolutionary experiences at the intersection of modality and intelligence. The pace is fast. The ambiguity is high. You'll ship things that millions of people use-and you'll ship things that don't exist anywhere else yet.

If you want to work on well-scoped problems with clear answers, this isn't the team. If you want to define the future of how humans and AI live and work together, come build with us.

Responsibilities

 * Create breakthrough experiences that redefine what an AI companion can do
 * Build across modalities-voice, vision, text, and action-to make Copilot feel seamless and alive
 * Own features end-to-end, from concept through production, at scale
 * Collaborate with applied AI researchers to bring cutting-edge model capabilities to users
 * Ship experiments rapidly, learn from usage, and iterate toward experiences that feel like magic
 * Work across team boundaries on problems that span the entire product


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