01 / FULL-STACK WEB APPLICATION
HealthSync
A place to log blood glucose, see trends, and export health records. Rebuilt independently from a university group project.
Explore case studyTurning data and ideas into working applications.
I’m Joan, an Information Systems graduate. I build cloud data pipelines, full-stack web applications, and AI-powered prototypes.
MY APPROACH
01UnderstandPeople & needs
02BuildData & software
03LearnFeedback & iteration
FROM UNDERSTANDING TO BUILDING
PYTHON / SQL / FLASK / AISCROLL TO EXPLORE ↓
01 / Selected projects
Three projects. Different challenges. One hands-on approach.
From requirements and data models to working applications — a closer look at what I built and how.
02 / AI / RAG PROOF OF CONCEPT
Employee Handbook AI
An employee-policy Q&A prototype connecting semantic retrieval with language generation — and showing where answers come from.
Explore case study03 / CLOUD DATA ENGINEERING
Airbnb Data Pipeline
From public Dublin listings to analytics-ready data. A cloud ELT pipeline with orchestration, modelling, quality checks, and reporting.
Explore case study02 / Skills
A toolkit for building.
Connected by practice, not proficiency scores.
Data & analytics
- Python
- SQL
- GCS
- BigQuery
- Airflow
- dbt
- Looker Studio
Software & delivery
- Flask
- REST APIs
- PostgreSQL
- HTML / CSS
- JavaScript
- Git
- Docker
AI applications
- RAG
- Sentence Transformers
- Vector Search
- LLM APIs
- Streamlit
Product practice
- Use-case definition
- Requirements
- Prototyping
- Iteration
03 / JOURNEY
The path so far.
From education to technology, shaped by curiosity, communication, and hands-on learning.
MSc · Information Systems
University College Cork · Ireland
Developed practical skills in database design, application development, business intelligence, and software projects.
Chinese Language & Homeroom Teacher
Education Sector · China
Developed strong communication, problem-solving, and organisational skills through teaching, learning progress tracking, and cross-functional collaboration.
BA · Teaching Chinese to Speakers of Other Languages
Undergraduate Studies · China
Built a foundation in communication, cross-cultural understanding, and adapting to diverse learning needs.
04 / A LITTLE ABOUT ME
People first. Then the technology.
Before moving into technology, I worked as a Chinese language teacher and homeroom teacher. Tracking learning progress, adapting teaching plans, and communicating with families shaped a practical habit: understand the problem, observe the feedback, and keep improving.
During my Information Systems master’s, I brought that approach into building data pipelines, web applications, and AI prototypes. I’m exploring opportunities across data engineering, software engineering, and product management.
WHAT’S NEXT?
Let’s start a conversation.
Have a role or project in mind? I’d love to hear about it.
joanqfchen@outlook.com