Investment App is a web application built with PHP, HTML, CSS, and JavaScript, designed to simulate an investment platform. It includes features like user authentication, transaction tracking, referrals, and financial operations, showcasing early-stage development of a functional fintech system.

💰 A Python CLI banking system for managing accounts, transactions, and balances built for learning and practical use.

Pequeno sistema transacional capaz de armazenamento de pedidos, importação e exportação de dados em formato yaml.

A Python-based Cli banking system that simulates essential banking operations, featuring multiple account types (Islamic, Current, Savings), currency conversion, and administrative controls through a Super User interface.

Point of Sale (POS) Simulator - implementing core retail transaction workflows using team-based agile practices.

A fast and scalable Java-based Command-Line Banking Application that allows users to create accounts, manage transactions, transfer funds, and view mini-statements — all with an attractive, ANSI-colored terminal interface.

DDD и TDD пример ядра трансакции банка по основным операциям (пополнение, снятие, конвертация валют, выписка по банковскому счету).

Educational full-stack banking system designed to explore real-world backend architecture, featuring JDBC transaction management, robust relational modeling, layered design (service/DAO), test-driven development with H2, and cryptographic transaction security using RSA.

Ledger-based financial transaction backend built with Node.js, Express, and MongoDB. Implements JWT authentication, ACID-compliant transactions, and idempotent APIs to ensure secure and consistent account transfers. Deployed on Render with MongoDB Atlas.

💳 Java-based GUI ATM Machine Simulation using Swing. Supports PIN login, balance check, deposit, withdrawal, fund transfer, and mini statement — with full-screen UI and styled components.