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    <job>
      <externalid>bf73000c-a1a</externalid>
      <Title>Member of Technical Staff - Principal Platform Engineer, Copilot Memory and Personalization</Title>
      <Description><![CDATA[<p><strong>Summary</strong></p>
<p>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&#39;s revolutionising AI technology. You&#39;ll work directly with leadership to shape the company&#39;s direction in the AI market.</p>
<p><strong>About the Role</strong></p>
<p>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.</p>
<p><strong>Accountabilities</strong></p>
<ul>
<li>Design and build large-scale Copilot memory and personalization systems leveraging search, embeddings, retrieval, ranking, and Retrieval-Augmented Generation (RAG).</li>
<li>Apply subject-matter expertise in cross-product features, collaborating with appropriate stakeholders to drive project plans, release plans, and deliverables across multiple groups.</li>
</ul>
<p><strong>The Candidate we&#39;re looking for</strong></p>
<p><strong>Experience:</strong></p>
<ul>
<li>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.</li>
</ul>
<p><strong>Technical skills:</strong></p>
<ul>
<li>Experience building and deploying machine learning or large language model (LLM) applications at scale.</li>
<li>Experience designing and implementing large-scale embedding, retrieval, and ranking systems.</li>
</ul>
<p><strong>Personal attributes:</strong></p>
<ul>
<li>Thrive in a fast-paced, collaborative environment and are comfortable making progress in ambiguity.</li>
</ul>
<p><strong>Benefits</strong></p>
<ul>
<li>Software Engineering IC5 – The typical base pay range for this role across the U.S. is USD $139,900 – $274,800 per year.</li>
<li>Software Engineering IC6 – The typical base pay range for this role across the U.S. is USD $163,000 – $296,400 per year.</li>
</ul>
<p style="margin-top:24px;font-size:13px;color:#666;">XML job scraping automation by <a href="https://yubhub.co">YubHub</a></p>]]></Description>
      <Jobtype>full-time</Jobtype>
      <Experiencelevel>senior</Experiencelevel>
      <Workarrangement>onsite</Workarrangement>
      <Salaryrange>USD $139,900 – $274,800 per year</Salaryrange>
      <Skills>C, C++, C#, Java, JavaScript, Python, Machine learning, Large language model (LLM) applications, Embedding, Retrieval, Ranking, 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</Skills>
      <Category>Engineering</Category>
      <Industry>Technology</Industry>
      <Employername>Microsoft AI</Employername>
      <Employerlogo>https://logos.yubhub.co/microsoft.ai.png</Employerlogo>
      <Employerdescription>Microsoft AI is a leading technology company that specializes in artificial intelligence, machine learning, and cloud computing. They aim to make AI accessible to all, consumers, businesses, developers, so that everyone can realize its benefits. Microsoft AI is seeking an experienced Platform Engineer to help build Copilot memory and personalization — AI that remembers, evolves, and grows with each user.</Employerdescription>
      <Employerwebsite>https://microsoft.ai</Employerwebsite>
      <Compensationcurrency></Compensationcurrency>
      <Compensationmin></Compensationmin>
      <Compensationmax></Compensationmax>
      <Applyto>https://microsoft.ai/job/member-of-technical-staff-principal-platform-engineer-copilot-memory-and-personalization/?utm_source=yubhub.co&amp;utm_medium=jobs_feed&amp;utm_campaign=apply</Applyto>
      <Location>Mountain View</Location>
      <Country></Country>
      <Postedate>2026-03-06</Postedate>
    </job>
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