SMS Processing System Reengineering | 17x Performance Scaling

Software Developer Enterprise Java

May 2012 - June 2012

2 months

full-time

Project

Hamburg

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Overview

As Software Developer Enterprise Java at dtms, I led the reengineering of a critical SMS processing system, achieving a remarkable 17x performance improvement from 40 to 700 SMS per second. This high-performance message processing architecture included advanced word filtering capabilities and real-time SMS ticker functionality for enhanced message management.

The reengineering process involved comprehensive system analysis, architecture redesign, and iterative optimization to handle enterprise-scale SMS volumes. Built with Jersey JAX-RS for API integration, JPA/Hibernate for data persistence, and Google Guice for dependency injection, the solution delivered robust, scalable SMS processing capabilities with advanced filtering and monitoring features.

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Activities

System Reengineering: Complete architecture redesign for 17x performance improvement (40→700 SMS/sec)
Performance Optimization: High-throughput message processing, concurrent handling, memory optimization
Feature Development: Word filtering system, real-time SMS ticker, advanced message management
API Integration: Jersey JAX-RS implementation, RESTful endpoints, scalable service architecture
Quality Assurance: TestNG testing framework, performance testing, load validation

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Methodology

Iterative Incremental Development: Step-by-step optimization with continuous performance monitoring
Performance-First Architecture: High-throughput design, concurrent processing, scalable message handling
Feature-Driven Development: Word filtering, SMS ticker, enhanced message management capabilities
Enterprise Integration: JPA/Hibernate persistence, Google Guice dependency injection, Tomcat deployment