ChatSprout 2.0 — LLM-Powered Scenario-Based English Communication Coach
Product Owner & Solo Builder
LLM + RAG scenario coaching with low-similarity fallback
Esther Zeng
Product Builder | Tech for Good
Hi, I'm Esther.
AI-focused product manager with 5+ years of experience shipping consumer and platform products.
Curious about how things work under the hood, I went back to study Computer Science and recently completed my Master’s at Northeastern University, where I focused on full-stack development and AI-driven applications.
As AI rapidly evolves, coding is becoming a new way to express ideas and build products faster than ever. I’m excited about combining product thinking with technical understanding to create meaningful AI products.
AI Product Cases.
ML Training Data Generation Pipeline (Android Malware Detection)
System Design
Reproducible data generation · 17+ obfuscation strategies · Docker
Community Assistant
React, Node.js, PostgreSQL, Redis, Docker, AWS
Full-stack civic platform with auth, caching, and AWS deployment.
Experience highlights.
CinoCore
Product Manager
Main project: TH-002 6.0 major release
ZhongAn
Senior Product Specialist
Main project: App onboarding & first-login conversion
Tencent Trusted Doctors
Product Specialist
Main projects: Mini Program booking revamp, Health coin engagement
Education.
Northeastern University
M.S. in Computer Science
GPA: 4.0/4.0; MasterCard Scholarship for Capstone
Shanghai University of Finance and Economics
B.M. in Real Estate Management
Skills.
Product & Tools
product roadmapping | requirements documentation | Agile/Scrum | stakeholder management | Figma | Sketch | Axure | XMind | Jira | Confluence
AI Product Skills
RAG architecture | embedding-based retrieval | prompt engineering | model evaluation | agent workflows | tool-calling mechanisms | multi-turn reasoning | latency & token cost optimization | PyTorch (model experimentation)
Data & Engineering
Python (Pandas / NumPy / Matplotlib) | SQL | RESTful APIs | AI coding tools (Claude Code, Codex)
Certifications & Languages
PMP (PMI)
Deep Learning Specialization (DeepLearning.AI)
Let's build something meaningful.
If you are working on something that makes life better, or want to talk about good design and clean code, I would love to connect.