Software Engineer @ PT Digital Lintas Dunia
Open to opportunities
I design and build end-to-end web products, from first idea to dependable launch.
Explore my workHello there!!
I am Jefta Supraja, an Informatics Engineering graduate from UPN Veteran Jakarta, now a Software Engineer at PT Digital Lintas Dunia. I build end-to-end web products across frontend and backend — real-time messaging, payment dashboards and admin platforms — integrating both relational and non-relational databases, and I prototype the product and visual side in Figma before a line of code is written.
2021 - 2025
Informatics Engineering at Universitas Pembangunan Nasional Veteran Jakarta — covering software engineering, algorithms, database systems and end-to-end web application development.
Certification
Certiport Information Technology Specialist in Data Analytics, and Oracle Academy Java Foundations with final exam completion.
Competency
BNSP competency certification through UPNVJ, alongside the OK OCE Indonesia Kampus Merdeka internship as Website and Social Media Developer.
From a Kampus Merdeka internship in design and content to engineering messaging, payment and admin platforms in production.
Projects Shipped
Certifications
A browser-based photobooth for couples, long-distance moments and special occasions, featuring ready-to-use aesthetic frames, camera capture and downloadable photo strips without installing an app.
A full-stack marketplace for selling custom design products. Express APIs handle authentication, product management and Midtrans payments; the React + Vite frontend covers browsing, carts and admin dashboards.
A student attendance system combining facial recognition with geolocation checks, pairing a Next.js client with a Python Flask service running MTCNN, MediaPipe, FaceNet and KNN.
A Discord-style group chat platform with real-time messaging, payment processing and fund controls for group owners, built on React, Express and PostgreSQL with Pusher and Midtrans.
A music streaming app on the MERN stack, with an admin panel for uploading and managing songs, artists and albums, plus a Spotify-like client for search, playback and playlists.
An admin dashboard where projects are created and auto-published to a portfolio site — JWT auth, project CRUD, Cloudinary uploads, GSAP animation and Spline 3D integration.
A tracker for anime watchlists where users write reviews and browse public ratings, served by an Express backend over PostgreSQL with a Tailwind-styled frontend.
