CS Student & AI / Data Science Enthusiast
BINUS University — Computer Science (Global Class) · Former Visiting Student @ Mahidol University, Thailand
Dedicated computer science student with a passion for technology, problem-solving, and building intelligent systems. Where curiosity meets code — and music meets machine learning.
I'm Steven Jonatan, an undergraduate Computer Science student at BINUS University with a focus on Artificial Intelligence and Data Science. My academic journey took me beyond borders — I spent time as a visiting student at Mahidol University of International College in Thailand, which broadened both my technical perspective and my understanding of global tech communities.
I'm deeply passionate about the intersection of data and intelligence — building systems that learn, adapt, and solve real-world problems. Whether it's training models, crafting clean code, or diving into a new framework, I thrive in environments that push me to keep growing.
Outside the terminal, I'm a music lover. I believe creativity fuels great engineering — the same attention to structure and flow that makes a good song also makes good software.
A cross-platform Android app that recommends personalised daily water intake. A machine learning model classifies user activity level and is served through a Flask REST API deployed on Render, with a Flutter front-end handling logging, reminders, and progress tracking.
A machine learning system that classifies water pollution levels and flags anomalies to support sustainable water management. The Random Forest model reached an F1-score of 99.51%, precision of 99.13%, and recall of 99.89%, deployed through an interactive Streamlit dashboard.
An NLP model fine-tuned on roughly 7,700 Reddit posts to detect linguistic signs of depression, achieving 98.7% accuracy and a 98.69% F1-score. The research was published through BINUS Research Methodology in Computer Science.
A semantic matching engine using SBERT (all-MiniLM-L6-v2) to pair candidate resumes with job descriptions via cosine similarity. Processed 2,483 resume PDFs against more than 30,000 job postings, reaching 99.16% Top-3 accuracy for Business Development roles.
A recommendation system that suggests optimal crops from soil and climate data, achieving 93% accuracy and a 97% F1-score. SHAP analysis identified nitrogen as the most influential factor, and a business simulation projected 97.88% of ideal profit.
A real-time posture monitoring app that uses MediaPipe pose estimation to detect slouching and alert users. Features a custom Calibration Lock algorithm so the system adapts to each user's neutral sitting position.
A full-stack bilingual (EN/ID) travel article platform built with Laravel. Includes full CRUD, user authentication, image uploads, and pagination — a complete content-management experience for showcasing Indonesian destinations.
This site — hand-coded from scratch with no framework or template. Features a full EN/ID bilingual system, responsive layout, tabbed timelines, project filtering, and a dark theme built entirely on custom CSS variables.
A complete enterprise network topology for a university campus, designed and simulated in Cisco Packet Tracer. Covers VLAN segmentation, inter-VLAN routing, DHCP configuration, and subnet planning across multiple buildings.
A predictive analysis using polynomial regression and Taylor Series approximation to forecast when a warehouse would reach its 25,000-unit capacity, giving roughly a 13-month lead time for planning and expansion decisions.
A full-scale relational database for a library management system, covering schema design, entity relationships, and normalisation — built to handle members, book inventory, borrowing records, and transactions.
A Space Invaders-style arcade game built with Pygame using object-oriented design. Features three progressive levels ending in a multi-phase MechaBot boss with randomised attack patterns, animated sprite explosions, health bars, sound effects, and multiple game states.
I'm actively seeking internship opportunities in AI, data science, and software engineering. If you think I'd be a good fit — or just want to talk tech — reach out anytime.
📍 Based in West Jakarta, Indonesia · Open to relocation