# You Wu > Software Engineer @ Persona | MS @ Columbia | BS @ Duke Location: San Francisco, California, United States Profile: https://flows.cv/you ## Work Experience ### Software Engineer @ Persona Jan 2025 – Present | San Francisco, California, United States ### Software Engineer Resident @ Persona Jan 2025 – Jan 2025 | San Francisco, California, United States ### Software Engineer @ Firework Jan 2025 – Jan 2025 | San Mateo, California, United States • Created an AI-powered ETL query expansion framework with Large Language Models (LLMs) to automate SQL query parsing, metadata extraction, and transformation optimization. Optimized ETL workflows by restructuring event data • Designed and deployed Airflow DAGs to orchestrate data ingestion and transformation, streamlining data movement across Snowflake, AWS S3, and relational databases for scalability and fault tolerance • Executed data quality checks in Data Build Tool (DBT), integrating custom tests, freshness monitoring, and CI/CD workflows • Developed real-time monitoring dashboards in Snowflake and Sigma to monitor customer events for customer tracking events, enabling data-driven insights, operational monitoring and error tracking ### Software Engineer @ Firework Jan 2024 – Jan 2024 | San Mateo, California, United States • Developed expertise in fine-tuning and optimizing AI prompts, enhancing virtual assistant performance by improving language consistency, reducing inference latency, and minimizing hallucinations across diverse use cases. • Designed and implemented the "MLLM as a Judge" evaluation framework, leveraging the Greedy Triplet Ranking (GTR) algorithm to automate the unbiased evaluation and ranking of large language models (LLMs) based on their performance. • Spearheaded the transformation of an AI assistant from a single-product to a multi-product sales powerhouse by enhancing its performance through proactive customer needs analysis, a refined feature catalog, and tailored product recommendations. • Automated end-to-end data pipelines for multi-product recommendation systems, including data generation, ingestion, and storage, significantly expanding the assistant's capabilities to recommend and switch between different product categories. • Conducted in-depth comparative analyses of market-leading LLM products, translating findings into actionable insights and strategic recommendations that enhanced the virtual assistant’s conversational quality and user experience. ### Data Scientist @ China Business Network (CBN) Jan 2022 – Jan 2022 | Shanghai, China • Mastered Alibaba-powered data tools such as Brand Data Bank, Business Reference, effectively distilling valuable insights • Applied deep analysis on consumer flows, employed sorting and filtering methods to customize and profile the crowd, fostering nuanced understanding of market dynamics and consumer behavior patterns • Generated daily reports to trace the effect of brand crowd placement and extracted product features based on customer reviews • Performed in-depth case studies on loyalty initiatives in Taobao's competitive marketplace, providing strategic advice to refine client brands' positioning and drive long-term growth ### R&D Data Analyst @ Accenture Jan 2022 – Jan 2022 | Shanghai, China • Investigated R&D financial management in leading tech companies, focusing on their R&D process, annual R&D investments • Benchmarked industry best practices and conducted desk research, including Samsung, Huawei, Apple, Dell, etc • Facilitated expert interviews, crafted expert interview outlines, organized meeting minutes, extracted key information, and conducted in-depth benchmarking analysis of best practices • Analyzed R&D financial control mechanisms at Huawei and Samsung through expert insights and desk research, culminating in informative PowerPoint presentations ### Assistant Software Engineer @ HopeRun Technology Corporation Jan 2020 – Jan 2020 | Nanjing, Jiangsu, China • Observed the Json format of the platform and used the Python crawler to collect components information, including Kafka, Yarn, as well as Zookeeper, and sorted out and collated complex APIs • Collaborated with colleagues to carry out the Chinese-English bilingual translation of over 1000 indicators and configuration item ## Education ### Master of Science - MS in Environmental Health Data Science Columbia University Mailman School of Public Health ### Bachelor of Science - BS in Data Science Duke University ### High School Affiliated to Nanjing Normal University ## Contact & Social - LinkedIn: https://linkedin.com/in/you-aria-wu --- Source: https://flows.cv/you JSON Resume: https://flows.cv/you/resume.json Last updated: 2026-04-11