# William Du > Founding Engineer @ Legion | Building out the future of enterprise productivity with generative AI. Location: San Francisco Bay Area, United States Profile: https://flows.cv/williamdu ## Work Experience ### Founding Engineer @ Legion Intelligence Jan 2022 – Present | San Francisco, CA As the 1st engineer at Yurts, I am working across the entire stack from infrastructure to ML to deliver the best generative AI experiences for our users. My role contributes across the lines of engineering, machine learning and product to the Yurts vision of redefining enterprise productivity in an AI-driven world. At Yurts I lead the applied machine learning and applications team, championing the integration of intricate machine learning models, LLMs and algorithms with real customer experiences. We work cross functionally to ship and deliver value to our customers quickly. ### Tech Lead Manager (TLM) - Staff Engineer @ Primer.ai Jan 2021 – Jan 2022 | San Francisco Bay Area Led a cross functional team of product designers, ML engineers, front end and back end engineers delivering a end-to-end natural language model training platform. Our team built out Primer Automate, a model training platform focused on allowing non-technical users to build machine learning models. We focused on building tooling to enable high quality data selection and labeling to maximize model performance while minimizing amount of human capital spent labeling. Research areas covered by my team included active learning and training dynamics. During my time building Primer Automate, I directly managed 5 ML engineers. ### Senior Engineer - Technical Lead @ Primer.ai Jan 2020 – Jan 2021 | San Francisco Bay Area - Technical Lead - Primer Automate - Technical Lead - Primer Extract ### Product Engineer @ Primer.ai Jan 2018 – Jan 2020 | San Francisco Bay Area ### Software Engineering Intern @ Microsoft Jan 2017 – Jan 2017 | Redmond, Washington - Built tool to semi-automate analysis of telemetry to improve the diagnosis of bugs and errors in Windows - Reduced average engineering time spent on resolving these errors from multiple days to a mere hour - Engineered a multi-processed algorithm that detects patterns across multiple telemetry logs with thousands of events ### Software Engineering Intern @ Apple Jan 2016 – Jan 2016 | Cupertino, CA - Designed and engineered cutting-edge proof of concept for Apple Online Store ### Research Assistant at the Rubin Lab @ Stanford University Medical Center Jan 2012 – Jan 2016 | United States Researched clinically relevant subtypes of glioblastoma multiforme in order to identify biomarkers indicative of survival using biomedical informatics techniques such as machine learning. ### Software Engineering Intern @ Kespry Inc. Jan 2015 – Jan 2015 | Menlo Park, CA - Integrated seamless 3D visualization of 3D aerial imagery collected from drone flights in a customer facing platform - Implemented an optimized image viewer capable of handling large numbers of photos gracefully ### Research Intern at the Korf Lab @ UC Davis Jan 2011 – Jan 2011 Researched ultraconserved genetic sequences between multiple genomes using Perl and Unix programming languages as tools to develop a statistical pipeline for analyzing Washington University BLAST results. ## Education ### Bachelor of Science - BS in Computer Science - Artificial Intelligence Stanford University ### Master of Science (MS) in Biomedical Informatics Stanford University School of Medicine ### High School Diploma Bishop O'Dowd High School ## Contact & Social - LinkedIn: https://linkedin.com/in/willadu --- Source: https://flows.cv/williamdu JSON Resume: https://flows.cv/williamdu/resume.json Last updated: 2026-04-10