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Microsoft Member Technical Staff – Backend Engineer Copilot Memory Personalization 
Taiwan, Taoyuan City 
430487983

17.07.2025

Job Description

Microsoft AI (MAI) is seeking an experienced Backend Engineer to help build Copilot memory and personalization — AI that remembers, evolves, and grows with each user. You’ll work in a highly collaborative, fast-paced environment to develop systems that deepen memory with every interaction, personalize experiences to reflect each user’s unique style and goals, and make interactions feel more like working with a trusted partner than using a tool.
By applying to this U.S. Mountain View, CA position, you are required to be local to the San Francisco area and in office 3 days a week.
Responsibilities
  • 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
  • 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.
  • Proactively seek out new knowledge and adapt to new trends, technical solutions, and patterns that improve the availability, reliability, efficiency, observability, and performance of products while also driving consistency in monitoring and operations at scale and share knowledge with other engineers.
  • Enjoy working in a fast-paced, design-driven, product development cycle.
  • Navigate ambiguity and clear roadblocks to deliver solutions quickly and iteratively, ensuring they reach users effectively.
  • Embody our culture and values
Required Qualification
  • Bachelor's Degree in Computer Science or related technical field AND 4 years technical engineering experience with coding in languages including, but not limited to, C, C , C#, Java, JavaScript, or Python OR equivalent experience.
Preferred Qualifications
  • Bachelor'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 Master'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.
  • Thrive in a fast-paced, collaborative environment and are comfortable making progress in ambiguity.
  • 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.
Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here: