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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer - Data, Personalization - Microsoft AI - **Company:** Microsoft - **Location:** Redmond, WA, United States - **Experience:** Experienced - **Salary:** $165,600.0 - $296,400.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, C (Programming Language), Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Microsoft Azure, Big Data, C Sharp (Programming Language), C++ (Programming Language), Cloud Computing, Data Systems, Distributed Data Store, Python (Programming Language), Tensorflow, Technical Data Management Systems, Apache Spark, AI Platforms, Information Technology, Apache Flink, Apache Kafka - **Published:** July 26, 2026 - **Apply:** https://diversityjobs.com/main/sendform/8/8/28176/1/17707779?backUrl=%2Fcareer%2F17707779%2FPrincipal-Software-Engineer-Data-Personalization-Microsoft-Ai-Washington-Redmond ## About the Role You will possess a methodical approach to problem-solving, proficiency in backend technologies, a familiarity with applied AI and its unique challenges, and the ability to architect solutions that stand the test of time. The right candidate is hands-on and enjoys building world-class consumer experiences and products in a fast-paced environment.A key skill is the judgment to make the right risk vs velocity and value decisions., * 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 equivalent experience., * 4+ years' experience building scalable services, including securing applications and infrastructure on top of cloud infrastructure like Azure, AWS, or GCP. * 3+ years' experience in OSS data technology, such as Kafka, Spark, Flink. * Experience with large scale data systems * Experience working with AI platforms, frameworks, and APIs. * Experience using Machine Learning frameworks, including experience using, deploying, and scaling language learning models, either personally or professionally. * Ability to identify, analyze, and resolve complex technical issues, ensuring optimal performance, scalability, and user experience. * Demonstrated interpersonal skills and ability to work closely with cross-functional teams, including product managers, designers, and other engineers. * Passion for learning new technologies and staying up to date with industry trends, best practices, and emerging technologies in web, data systems and AI. * Ability to work in a fast-paced environment, manage multiple priorities, and adapt to changing requirements and deadlines. * Proven ability to collaborate and contribute to a positive, inclusive work environment, fostering knowledge sharing and growth within the team. #MicrosoftAI ## Description We are looking for aPrincipal Software Engineerto lead the design and development of distributed data infrastructure, APIs and personalization pipelines that drive Copilot's intelligence. You will work across Microsoft AI and Copilot teams., * Architect scalable, low-latency systems for ingesting, processing, and serving personalized signals. * Design data models and APIs that enable Copilot to reason about user context, preferences, and history * Build real-time and batch personalization engines that adapt Copilot's behavior. * Collaborate with privacy, security, and responsible AI teams to ensure personalization is safe, transparent, and user-controlled * Optimize for performance, reliability, and cost across diverse workloads and geographies. * Ship high-quality, well-tested, secure, and maintainable code. * Find a path to get things done despite roadblocks to get your work into the hands of users quickly and iteratively. * Enjoy working in a fast-paced, design-driven, product development cycle. * Embody ourCultureandValues. ## Related Videos - [Alibaba Big Data and Machine Learning Technology](https://www.wearedevelopers.com/videos/37-alibaba-big-data-and-machine-learning-technology) - [Machine learning in the browser with TensorFlowjs](https://www.wearedevelopers.com/videos/155-machine-learning-in-the-browser-with-tensorflowjs) - [How to Benchmark Your Apache Kafka](https://www.wearedevelopers.com/videos/76-how-to-benchmark-your-apache-kafka) - [Inside the AI Revolution: How Microsoft is Empowering the World to Achieve More](https://www.wearedevelopers.com/videos/869-inside-the-ai-revolution-how-microsoft-is-empowering-the-world-to-achieve-more) - [Unboxing the DeepFace](https://www.wearedevelopers.com/videos/335-unboxing-the-deepface) - [Why and when should we consider Stream Processing frameworks in our solutions](https://www.wearedevelopers.com/videos/1085-why-and-when-should-we-consider-stream-processing-frameworks-in-our-solutions) ## Related Articles - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [Coffee with Developers - Maria Apazoglou - Making AI understandable for all in production](https://www.wearedevelopers.com/magazine/475-coffee-with-developers-maria-apazoglou-making-ai-understandable-for-all-in-production) - [MLOps And AI Driven Development](https://www.wearedevelopers.com/magazine/82-mlops-and-ai-driven-development) - [What is Software Engineering in the Age of AI?](https://www.wearedevelopers.com/magazine/640-what-is-software-engineering-in-the-age-of-ai) - [Transforming Software Development: The Role of AI and Developer Tools](https://www.wearedevelopers.com/magazine/527-transforming-software-development-the-role-of-ai-and-developer-tools)