ADAM ARBAI

QuantStream

A real-time crypto analytics platform that simulates pairs trading. BTC and ETH ticks stream in from Binance over WebSocket and go through Apache Kafka, with every service containerised in Docker Compose.

A statistical engine runs a cointegration test on a rolling window of 100 ticks and turns the spread’s z-score into buy and sell signals. A Spring Boot microservice on PostgreSQL executes simulated trades, and a Next.js dashboard shows prices, signals and balance.

Python, Kafka, Statsmodels, Spring Boot, PostgreSQL, Next.js

ShopEase

A multi-role e-commerce platform in Java with Servlets, JPA/Hibernate and SQL Server. JWT authentication separates three roles: customer, seller and administrator.

The Jenkins pipeline builds with Maven, runs 139 unit tests (JUnit, Mockito), checks code quality with SonarQube, publishes a Docker image to Docker Hub, deploys and pings Slack. Prometheus collects metrics from the running app and Grafana dashboards display them. A scheduled job updates order statuses automatically.

Java, Hibernate, SQL Server, JWT, Docker, Jenkins, SonarQube, Prometheus, Grafana

SQL Server data warehouse

A three-layer medallion warehouse, bronze, silver and gold, with a star schema: customer and product dimensions around a sales fact table, all loaded by T-SQL stored procedures.

CRM and ERP data is cleaned and standardised, with quality checks for duplicates, null values and date consistency.

SQL Server, T-SQL, ETL, dimensional modelling

Tech Horizons

An academic online magazine built with PHP, Laravel and MySQL. It handles subscriptions, article ratings and recommendations based on reading history, for four user profiles: guest, subscriber, topic manager and editor.

PHP, Laravel, MySQL