about

Hi, I'm Qjin. I make things with data.

I'm studying data science in the UK and building things on the side.

education

• University of Sheffield

  MSc Data Science

  2025 –
• Tech University of Korea

  BSc Computer and Electronics Engineering · work-study programme

  2020 – 2024

experience

Built data pipelines and field tools for national data construction projects. IoT remote control, large-scale unstructured data, project and people management as team lead.

• DAMP C#

  Management program for an art-records digitisation project: data refinement, distribution, inspection, admin statistics, real-time oversight

• KolisMods Python

  National Authority File project, National Library of Korea. Collects MODS data, extracts and converts required fields

• LMM Python · Qt

  Document DB project, National Assembly Library. Metadata search, automatic verification, CSV/Excel import·export

activities

• Subway congestion prediction model

  Deep-learning (MLP) dynamic analysis and prediction of station congestion. Paper at the KSCI winter conference, done through AIS Lab, an inter-university club

  Nov 2023 – Jan 2024

skills

• Python

  pandas · scikit-learn · TensorFlow

• R

  tidyverse · ggplot2, statistics

• SQL · Database

  Oracle SQL, bibliographic DBs

• C# · Qt

  PyQt · PySide, field desktop tools

• TypeScript · Web

  Astro, Next.js

• Tools

  Git · GitHub Actions · Cloudflare · Jupyter

projects

• QRA web-based remote access platform
• The uneven recovery of UK rail what the national average hides
• Rail delay dissertation in progress

Full stories in works →

Also coursework: SDG 11 urban data analysis, business intelligence (The Gym Group), Ames Housing machine learning

channels