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Informatics Engineering / Universitas Pancasila

I build machine learning models and software that ships.

Rienchy Razak. Undergraduate at GPA 3.87, with hands-on deep learning implementation in PyTorch and full-lifecycle software engineering in Java and TypeScript. Currently seeking an AI or Backend internship.

Selected work

Built, documented, defensible.

Documentation project
Machine Learning

Kolmogorov-Arnold Network Implementation

Learnable spline activations as an alternative to MLPs

Built a KAN implementation exploring learnable spline-based activations, comparing behaviour against standard MLP layers.

PyTorchPython
Documentation project
Software

CatatStok

Warehouse inventory desktop app, written as primary developer

A working OOP inventory system in Java and JavaFX with Maven: item and category CRUD, inbound and outbound stock transactions with audit history, low-stock alerts, and CSV report export through a centralized data service.

JavaJavaFXMaven
Documentation project
Software

Telemedicine System

Full SDLC software engineering course project

Requirements analysis, context diagram, DFD, ERD, data dictionary, UI design, Java implementation, and black-box testing, delivered end to end with a team of three.

JavaUMLSDLC
Documentation project
Machine Learning

Sleep Health Classification

Four-model pipeline written up as an IEEE-format paper

A classification pipeline (SVM, Decision Tree, k-NN, Random Forest) with confusion-matrix evaluation; results written up in LaTeX using the IEEE format.

Pythonscikit-learnLaTeX

All projects

Approach

Two disciplines, one habit of rigor.

Machine learning, end to end

From classical classifiers to modern neural architectures, I implement, train, and benchmark models in PyTorch and scikit-learn, and I read the papers behind them.

Software that ships

From a full-lifecycle Java application to an offline-first PWA written in vanilla JavaScript, I care about working software, audit trails, and code someone else can read.

Detail as a default

Accelerated coursework at GPA 3.87, IEEE-format write-ups, and interfaces built for real devices. The small things are the work.

Contact

Open to an AI or Backend internship.

I am looking for a team where I can learn quickly and contribute to real systems, whether the work is modeling, data, or backend engineering. The fastest way to reach me is email.