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Mengfei Xu

@mengfeixu

AI Product Manager intern at JD.com who launched JD Health’s veterinary AI consultation service.

At JD.com, I led root-cause analysis for JD Health’s AI consultation service and identified pet health as a promising growth area. I worked with the machine-learning team on a veterinary model, defined safety requirements, and helped launch the service with no recorded safety incidents.

At Meituan, I designed behavior-based search suggestions and ranking rules; an A/B test increased suggestion CTR and post-click conversion. My projects include an interactive narrative game built with Unity and C#, and early-stage product research and app UX for PulseClip, a blood-pressure monitoring concept.

Experience

Work history, roles, and key accomplishments

AI Product Manager Intern

JD.com, Inc

Jul 2025 - Oct 2025 (3 months)

Led root-cause analysis of slowing user growth and retention for JD Health's AI consultation service, identified pet health as a high-potential vertical, and launched with no safety incidents, reaching 630K new users and a 17.3% conversion rate.

Product Strategy User Research A B Testing Funnel Analysis LLM Evaluation AI Safety Testing SQL Python LoRA Finetuning Data Analysis

Product Manager Intern

Meituan

Apr 2025 - Jul 2025 (3 months)

Replaced manually configured search-bar suggestions with a behaviour-based system, improving CTR from 0.35% to 0.45% and post-click conversion from 7.0% to 7.8% in A/B tests.

Product Management A B Testing Search Infrastructure Ranking Algorithms User Segmentation Data Analysis

Digital Content & Marketing Intern

ETS Assessments (Beijing) Ltd.

Aug 2024 - Oct 2024 (2 months)

Benchmarked content to launch structured series, grew follower count by 20% month on month, and increased video likes by 100% through co-branded campaigns and performance analytics.

Content Strategy Competitive Analysis Performance Analytics Campaign Planning Audience Research Video Production

Education

Degrees, certifications, and relevant coursework

University of Cambridge

Master of Philosophy, Digital Humanities

2025 - 2026

Grade: 72/100

Master of Philosophy in Digital Humanities with an overall mark of 72/100 and a distinction-level dissertation. Conducted qualitative thematic analysis of user experiences across AI chatbots.

Beijing University of Technology

Bachelor of Engineering, Digital Media Technology

2021 - 2025

Bachelor of Engineering in Digital Media Technology with relevant coursework in data structures, database systems, and software engineering. Participated in an exchange program at University College Dublin.