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Microsoft AI

Member of Technical Staff - Principal Platform Engineer, Copilot Memory and Personalization

Microsoft AI
onsite senior full-time USD $139,900 – $274,800 per year Mountain View
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First indexed 6 Mar 2026

Description

Summary

Microsoft AI are looking for a talented Member of Technical Staff - Principal Platform Engineer, Copilot Memory and Personalization at their Mountain View office. This role sits at the heart of strategic decision-making, turning market data into actionable insights for a company that's revolutionising AI technology. You'll work directly with leadership to shape the company's direction in the AI market.

About the Role

As a Principal Platform Engineer, you will design and build large-scale Copilot memory and personalization systems leveraging search, embeddings, retrieval, ranking, and Retrieval-Augmented Generation (RAG). You will apply subject-matter expertise in cross-product features, collaborating with appropriate stakeholders to drive project plans, release plans, and deliverables across multiple groups. You will hold accountability as a Designated Responsible Individual (DRI), mentoring engineers across products/solutions, working on-call to monitor system/product/service for degradation, downtime, or interruptions.

Accountabilities

  • Design and build large-scale Copilot memory and personalization systems leveraging search, embeddings, retrieval, ranking, and Retrieval-Augmented Generation (RAG).
  • Apply subject-matter expertise in cross-product features, collaborating with appropriate stakeholders to drive project plans, release plans, and deliverables across multiple groups.

The Candidate we're looking for

Experience:

  • 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.

Technical skills:

  • Experience building and deploying machine learning or large language model (LLM) applications at scale.
  • Experience designing and implementing large-scale embedding, retrieval, and ranking systems.

Personal attributes:

  • Thrive in a fast-paced, collaborative environment and are comfortable making progress in ambiguity.

Benefits

  • Software Engineering IC5 – The typical base pay range for this role across the U.S. is USD $139,900 – $274,800 per year.
  • Software Engineering IC6 – The typical base pay range for this role across the U.S. is USD $163,000 – $296,400 per year.
This listing is enriched and indexed by YubHub. To apply, use the employer's original posting: https://microsoft.ai/job/member-of-technical-staff-principal-platform-engineer-copilot-memory-and-personalization/