This repository contains the workflow API of an example/PoC of how to use Uber Cadence in order to implement event-driven microservices, together with Apache Kafka.

Spring Boot-based banking system with authentication, account management, transactions, and multiple loan modules (home, car, gold). Includes secure login, account operations (deposit, withdrawal, balance check), and loan application workflow. Built with Java, Spring Boot, MySQL, and REST APIs.

A production-style wallet and payment API built in Go, implementing double-entry accounting with an immutable ledger, transactional safety, and clean domain-driven architecture. Designed to model real fintech workflows such as transfers, deposits, and balance derivation with strong consistency guarantees.

BankAccount is a small Spring Boot demo application that exposes a REST API to manage basic bank-account operations. It focuses on simple balance/transfer workflows and on persisting and retrieving a transaction history.

End-to-end financial platform with custom data structures, ACID-compliant transactions, secure REST APIs, admin panel with global undo/redo, CRUD, approval workflows, telemetry dashboard, and user features like onboarding, joint accounts, real-time routing, and live balance tracking.

A full-stack fintech-style banking app that supports authentication, connecting bank accounts, viewing balances and transactions, and sending transfers using third-party financial integrations. Built to practice real-world patterns like secure auth, server actions, API workflows, and a clean responsive UI.

A full-stack e-banking app built with Spring Boot, React, and MongoDB. Supports user accounts, balance checks, and secure money transfers with proper validations. Includes REST APIs, transaction history, and cloud-ready architecture. Designed to mimic real online banking workflows end-to-end

Ledger Service is a Go-based microservice that orchestrates user accounts, balance management, and secure transfer recording using REST APIs, a relational store, and RabbitMQ-backed background workers. Its primary goal is to demonstrate a reliable ledger workflow with authentication, permission checks, and transactional integrity.