# AI/ML Engineer Location[United States](https://jobicy.com/resume-region/united-states.md)Rate, USD Not specifiedWork schedule Full Time, Links—Language skills Chinese, EnglishAvailable for Hire Yes [Hire me](#resume-dialog) Save Log in to save ## About me I am an AI/ML Engineer with 5+ years of experience building and deploying production-scale machine learning systems. My work spans search, recommendation, computer vision, and generative AI, with a strong focus on delivering measurable business impact. I specialize in LLM-powered applications, including GPT-4-based workflows, retrieval-augmented generation, semantic retrieval, embeddings, prompt engineering, and agentic automation. I enjoy turning complex product needs into scalable AI solutions that can operate reliably in production. At Uber, I architected deep-learning ranking models and personalized ranking pipelines that improved discovery, conversion, and search relevance at massive scale. I also built semantic retrieval and RAG systems, real-time feature pipelines, and low-latency inference services supporting multiple product teams. Previously at Walmart Global Tech, I developed ranking and recommendation models for sponsored advertising, built ML inference microservices, and improved model freshness through automated retraining pipelines. I also worked on computer vision systems and evaluated LLM approaches for semantic retrieval and query understanding. My background includes strong experience with Python, SQL, TypeScript, JavaScript, React, PyTorch, TensorFlow, FastAPI, AWS, Docker, Kubernetes, Kafka, Spark, PostgreSQL, Elasticsearch, Redis, and modern ML tooling. I am comfortable working across the full lifecycle of AI systems, from experimentation and model development to deployment and monitoring. I have a PhD in Electrical and Electronics Engineering from the University of California, Riverside, along with a master’s degree from Washington University in St. Louis and bachelor’s degrees from Swansea University and North China Electric Power University. I value cross-functional collaboration and data-driven experimentation to build AI products that create real user value. ## Professional area ### [Developer & Engineer](https://jobicy.com/resume-category/dev.md) ## Skills ### [A/B Testing](https://jobicy.com/resume-skill/a-b-testing.md)[AWS](https://jobicy.com/resume-skill/aws.md)[CI/CD](https://jobicy.com/resume-skill/ci-cd.md)[Data Analysis](https://jobicy.com/resume-skill/data-analysis.md)[Docker](https://jobicy.com/resume-skill/docker.md)[JavaScript](https://jobicy.com/resume-skill/javascript.md)[Kafka](https://jobicy.com/resume-skill/kafka.md)[Kubernetes](https://jobicy.com/resume-skill/kubernetes.md)[Microservices](https://jobicy.com/resume-skill/microservices.md)[NLP](https://jobicy.com/resume-skill/nlp.md)[PostgreSQL](https://jobicy.com/resume-skill/postgresql.md)[Python](https://jobicy.com/resume-skill/python.md)[React](https://jobicy.com/resume-skill/react.md)[Redis](https://jobicy.com/resume-skill/redis.md)[SQL](https://jobicy.com/resume-skill/sql.md)[TensorFlow](https://jobicy.com/resume-skill/tensorflow.md)[TypeScript](https://jobicy.com/resume-skill/typescript.md) ## Education 2016 - 2021 Doctor of Philosophy in Electrical and Electronics Engineering @ University of California, Riverside 2014 - 2016 Master's degree in Electrical and Electronics Engineering @ Washington University in St. Louis 2011 - 2013 Bachelor of Engineering in Electrical and Electronics Engineering @ Swansea University 2009 - 2011 Bachelor's degree in Electrical and Electronics Engineering @ North China Electric Power University ## Experience Jun 2022 - Present ML / AI Engineer @ Uber Architected deep-learning ranking models for Uber Eats search, built personalized restaurant-ranking pipelines, designed semantic retrieval systems, developed GPT-4-powered query understanding and RAG workflows, built reusable AI inference services and low-latency APIs, developed real-time feature engineering pipelines, optimized Redis caching and backend infrastructure, led experimentation and evaluation frameworks, built production ML systems for dynamic rider pricing and incentive optimization, and partnered cross-functionally to deliver scalable AI solutions. Mar 2021 - Jun 2022 Senior Data Scientist @ Walmart Global Tech Developed production ranking models for sponsored advertising, built large-scale recommendation systems, engineered ML inference microservices, designed automated retraining pipelines, evaluated LLM providers and prompt-engineering approaches, built computer vision systems, improved object detection robustness, conducted data-quality analyses, and collaborated with stakeholders on high-impact AI opportunities. Jun 2020 - Aug 2020 Data Science Research Intern @ Walmart Global Tech Developed NLP-based advertising recommendation models using BERT, built prototype query understanding systems, developed reusable APIs and prompt orchestration pipelines, conducted experiments comparing transformer architectures, and presented findings to senior leadership. ## Recommend this talent ## Related resumes * [![Photo](https://jobicy.com/react/themes/app/images/candidate.png) Data / BI AnalystThailandI am a Data & Operations Analyst with a Software Engineering background, and I focus on turning operational data into clear, decision-ready reporting. My experience combines BI development, data cleaning,…](https://jobicy.com/cv/id148026.md) * [![Photo](https://jobicy.com/react/themes/app/images/candidate.png) Customer Service AssociateUnited StatesI am an entry-level web developer and customer service professional with more than 20 years of experience helping people, solving problems, and keeping operations running smoothly. I bring a strong…](https://jobicy.com/cv/id148022.md) * [![Photo](https://jobicy.com/react/themes/app/images/candidate.png) IT & CS Specialist | Help DeskCosta RicaI am an IT specialist with over 15 years of experience supporting corporate environments and helping users solve technical issues efficiently. I have worked extensively in troubleshooting, system administration, and…](https://jobicy.com/cv/id148021.md) * [![Photo](https://jobicy.com/react/themes/app/images/candidate.png) Fullstack Developer (Specialized in Frontend)MexicoI am a Computer Engineer with more than 10 years of experience imagining, designing, and building software for both individual and enterprise-scale products. My work has focused on frontend architecture,…](https://jobicy.com/cv/id148015.md) * [![Photo](https://jobicy.com/react/themes/app/images/candidate.png) Software Engineer (Laravel)BangladeshI am a software engineer specializing in Laravel and backend development, with hands-on experience building scalable systems for high-volume digital marketplaces. I focus on creating reliable, secure, and efficient web…](https://jobicy.com/cv/id148012.md) [More Resumes](https://jobicy.com/talent.md)