New 
Principal UX Memory Architect
 Microsoft | |
 United States, Washington, Redmond | |
 Oct 22, 2025 | |
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Overview Microsoft 365 Copilot Chat is the conversational core of Microsoft Copilot -where enterprise AI meets productivity. It's the default interface through which users summarize meetings, draft emails, generate insights from enterprise data, and coordinate with teams using natural language. As Microsoft accelerates its AI-first strategy, Chat isn't just a feature-it's the gateway. It's the most visible and critical surface for AI-powered work.As the Principal UX Memory Architect, you will lead the design and evolution of Microsoft 365 Copilot Chat's memory architecture to ensure fast, reliable, and scalable performance across Microsoft 365 surfaces. This role combines massive surface area and impact-your work directly shapes the foundation of Copilot Chat-with strategic depth and systems thinking, demanding precision in memory modeling, performance tuning, and regression prevention. You'll exercise cross-org influence and technical leadership, collaborating in true One Microsoft fashion with world-class PMs, designers, data scientists, and engineering teams to land high-leverage, cross-suite solutions. With Chat serving as the front door to Copilot's AI capabilities, memory health becomes a foundational requirement-not just for responsiveness, but for trust, stability, and user satisfaction. You will architect memory solutions for a product at the epicenter of Microsoft, making technical investments that align with measurable business outcomes and maximize customer value. If you are excited about building resilient memory systems, driving telemetry innovation, and shaping the technical foundation of AI-powered productivity experiences, this is your opportunity to lead from the front.This role requires you to be onsite 3 days a week in Microsoft's offices in Redmond, WA. 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 Architect memory systems and memory management across Chat client surfaces (e.g., M365 Copilot, Teams, Outlook, Word, Excel, PowerPoint etc.), optimizing runtime memory health, working set efficiency, and performance under diverse workloads.Lead memory health initiatives, including memory gates, automated regression detection, and tooling to isolate and resolve issues quickly, ensuring visibility into memory behavior.Build advanced analytics and debuggability systems enabling rich and scalable trace and heap snapshot collection, stack inspection and retainer path analysis.Drive cross-team collaboration with runtime partners (e.g., Edge), platform teams, and feature owners to improve garbage collection, reference handling, and memory protection.Mentor engineers and influence technical direction across the M365 Copilot Chat Fundamentals org, fostering a culture of memory excellence, performance, and continuous learning.Model our culture of growth mindset, clarity, accountability, and inclusive behaviors, removing systemic blockers so your team ships with agility and quality. Embody ourcultureandvalues. | |