Hello, my name is

Kelvin Nathanael Witarsa

A Software Engineering student

A 5th-semester Software Engineering student with a strong focus on Fullstack Development. My hands-on experience includes building fullstack applications with React.js and Laravel, developing backend systems in Python with MySQL, and crafting interactive frontends using HTML, CSS, and vanilla JavaScript. I am passionate about leveraging this versatile skillset at the intersection of Web Programming and Artificial Intelligence, and am actively seeking internship opportunities.

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About Me

I am an adaptive and motivated problem solver with experience in Data Analysis, Business Development, and Education. I combine technical skills from my university studies (like Java, Python, and React) with soft skills (such as communication and time management) honed from my work experience to create effective software solutions.

Skills

Technical Skills

Java Python C/C++/C# React.js Laravel PHP HTML CSS JavaScript MySQL SQLite Android SDK PhpMyAdmin MS Excel Data Administration Data Management Data Analyst

Soft Skills

Communication Problem-solving Analytical skills Time Management Teamwork Adaptability Sales Persuasion Networking Teaching

Projects

Here are some projects I have worked on. (Click the icon to view them on GitHub)

B-Clean

B-Clean is an innovative application engineered to address Indonesia's complex waste management challenges. The project's mission is to foster a sustainable recycling ecosystem by seamlessly connecting residents, businesses, and waste management facilities on one efficient platform.

HTML CSS PHP JavaScript MySQL React.JS Laravel

Core Banking System (Backend)

A backend-only API for a core banking system, built entirely in Python with a MySQL database. This project focuses on fundamental backend logic, including secure user authentication with input validation, and core account features like tracking transaction histories. The system is built on a clean, structured SQL schema with separated logic for database, authentication, and account management.

Python MySQL

Jenius Academy

Jenius Academy is a front-end prototype of an e-learning platform. It showcases a modern UI/UX design and foundational front-end skills. The app features key pages like the Homepage, Subscription tiers, and course browsing. It’s built to demonstrate a clean, and professional, ready to be expanded into a full-stack application.

HTML CSS JavaScript

Joymarket

Joymarket is a comprehensive digital marketplace application designed for fresh food and grocery delivery, built as a core project for the Object-Oriented Analysis & Design course. The project focuses on implementing a modern system to manage complex e-grocery operations through a robust MVC architecture.

Java JavaFX MySQL MVC Architecture

Smart To-Do List

Smart To-Do List is an intelligent productivity application engineered to solve the problem of information fragmentation in academic and professional environments. The project's mission is to streamline workflow by leveraging Generative AI (Google Gemini) to instantly transform unstructured chat messages into structured, actionable tasks. It features a proprietary dynamic scoring algorithm that autonomously prioritizes workload based on real-time urgency and deadline proximity.

Android Studio Java SQLite Gemini AI Retrofit

Experience

Sep 2024 - Nov 2024

Private Tutor

Carehouse (Freelance)

Taught and designed learning materials and practice questions for students from kindergarten to high school, enhancing their understanding and communication skills.

Jun 2023 - Oct 2023

Business Development Representative

VISION (Part-time)

Gained experience in sales, prospecting, and developed interpersonal skills in a dynamic environment.

May 2023 - Sep 2023

Data Analyst

Lion Air Group (Internship)

Analyzed crew lounge & hotel data, performed data cleaning, and improved data quality using Excel.

Education

Computer Science (Software Engineering)

BINUS University, West Jakarta

2023 - 2027