Hi, I'm Juan.
Building at the intersection of software development and data. Currently studying in Nanjing, always learning, always shipping.
Building at the intersection of software development and data. Currently studying in Nanjing, always learning, always shipping.
Indonesian, based in Nanjing, building where code meets data.
I'm Juan Javier Samuel Zaluchu — an Indonesian software engineering student currently based in Nanjing, China. I build things at the intersection of data science and software development: training ML models with Python and XGBoost, visualizing insights with Seaborn and Looker Studio, and deploying full-stack apps with FastAPI and React.
Certified as a BNSP Junior Data Scientist and with hands-on project experience across machine learning, data pipelines, and web development, I'm actively expanding my skills while embracing the challenge of studying abroad in a new language and culture.
Every move — Pekanbaru, then Yogyakarta, now Nanjing — pushed the same curiosity further.
A Catholic private high school in Pekanbaru, Riau, founded in 1975. Guided by the motto "Fortiter in re, suaviter in modo" — firm in principle, gentle in manner — and nationally Accredited A, it built a strong academic foundation and disciplined work ethic.
A leading private Catholic university in Yogyakarta, Indonesia. Studied Informatics (Teknik Informatika) in the Faculty of Industrial Technology, covering software engineering, data science, mobile computing, and enterprise systems within a research-driven environment.
A public university in Nanjing, Jiangsu, founded in 1927 by renowned educator Tao Xingzhi. One of Jiangsu's established institutions with active international partnerships across 20+ countries. Currently pursuing a Bachelor's in Software Engineering.
A mix of web apps, machine learning, and dashboards — built to solve problems I actually ran into.
Full-Stack
Food ordering and discovery platform for campus communities, built with React and a Node.js/Express API backed by MongoDB. Students browse menus, place orders, and track deliveries from dining spots around campus.
AI · ML
AI-powered fitness assistant that turns a user's goals and activity history into a personalized workout plan, then tracks progress over time. Python drives the recommendation logic behind a JavaScript front-end.
Data Science
End-to-end pipeline analyzing 74 Instagram posts. Linear Regression achieved 0.936 R² and ~25 MAE. 18+ visualizations including correlation heatmap and content opportunity matrix.
iOS · Swift
AI-powered iOS study companion built with SwiftUI and MVVM. Features real-time tutoring via Groq (Llama 3 70B), PDF analysis, quiz generation, flashcards, and Pomodoro timer with HealthKit analytics.
A few chapters where I learned by building, shipping, and solving real-world problems.
Jan – Feb 2026
Bank Sampah Digital
Turned messy social-impact data into a clearly measurable storytelling and forecasting workflow.
Jul – Sep 2026
Pasifik Satelit Nusantara (PSN)
Ran three parallel workstreams — plantation-security computer vision, Indonesian speech AI, and IoT asset-tracking firmware — taking each from raw data and hardware to validated, measured results.
Six credentials across data, cloud, and language proficiency.
Educational Testing Service
Digital Skola
LSP Teknologi Digital
Microsoft · AZ-900
Bank Sampah Digital
Bakat YEC.CO.ID
Have a project in mind or just want to say hi?
