Samuel Andrey

iOS Developer

Developed several iOS applications: Cointify, an app that recognized Indonesian coins using a YOLOv11 model integrated with Vision, CoreML, CoreMotion, and AVFoundation to automatically calculate total coin value, released on TestFlight; Terrible Two, a game built with SpriteKit and SwiftUI about a baby’s journey to escape from home, also tested via TestFlight; and iLectricity, an app built with SwiftUI and SwiftData that estimated household electricity bills, helping users track energy consumption more efficiently.

Back End Developer

Developed several web applications during my role as a Fullstack Developer: ROC Fast Respond v2, a system that connected service ticket requests between field technicians and agents, integrating a Telegram Bot to manage requests and collect agent feedback, built with Laravel and MySQL; a data processing application that converted and integrated Optical Distribution Point (ODP) data from the central department into the internal database, designed to handle uploads of over 300,000 rows per file using Laravel; and a Go-based program that retrieved a list of ODPs within a specified radius from a given location.

Apple Foundation Program

Developed Todocchi, an iOS to-do list application featuring a virtual pet and the ability to remind friends about tasks; built with SwiftUI and served as the iOS Developer.

Front End Web Engineer

Developed the UI and frontend of the UDINUS Centre of Excellence profile website by redesigning the interface and adding features such as office contact and an item borrowing request system, handling both frontend and backend using React.js, Express.js, and Bootstrap; also deployed the application to the server using Docker.

Back End Developer

Contributed as a Backend Developer for the Smart Onion Supply Chain Management System, where I developed RESTful APIs using Node.js and Express.js that were directly integrated with blockchain technology, integrated machine learning models for text recognition (OCR) in transaction scenarios, designed and worked with both SQL and NoSQL database systems, and collaborated with the mobile development team to deliver a cross-platform application.

Back End Developer

Developed RESTful APIs using PHP with the Laravel framework for Bengkel Koding, a Learning Management System designed for both mobile and web clients. Designed and implemented efficient, maintainable, and extensible SQL relational database schemas, created API documentation using the OpenAPI Specification and Postman to support seamless integration, and utilized Git and GitHub for version control and team collaboration. Additionally, developed Smart Door H6, an entry access, scheduling, and attendance system integrated with Bengkel Koding as a learning support platform at Dian Nuswantoro University.

Mentor Web Developer

Mentored approximately 50 final-year students from the web developer division who were preparing for graduation certification. Assisted students in resolving project- related issues and provided individual evaluations to support their successful graduation with optimal results.

Lab Computer Assistant

Assisted around three classes with more than 30 students each in the computer laboratory, supporting those who faced difficulties during learning activities. Contributed to making classroom sessions more interactive and easier to follow, and served as a teaching assistant for basic programming (C++) and database (SQL) courses.