iOS Backend Reengineering | Legacy System Modernization

Software Developer Enterprise Java

December 2012 - January 2013

2 months

full-time

Project

Hamburg

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Overview

As Software Developer Enterprise Java at dtms, I led the comprehensive reengineering of an outdated iOS backend system, transforming legacy architecture into a modern, scalable solution. The project involved thorough persistence analysis, code analysis, use case evaluation, and documentation analysis to deliver a future-proof backend system with enhanced data processing capabilities.

The reengineered system enabled seamless data exchange in JSON and XML formats with iOS clients, featuring CSV export functionality via email and SOAP integration. Built with Java 7, Apache Wicket 6.3.0, and comprehensive quality assurance tools including Checkstyle, PMD, and Findbugs, the solution delivered enterprise-grade reliability and maintainability.

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Activities

System Reengineering: Comprehensive persistence analysis, code analysis, use case evaluation, documentation analysis
Architecture Modernization: Design analysis, refactoring, legacy system transformation, future-proof architecture
Data Processing Enhancement: JSON/XML data handling, CSV export functionality, SOAP integration
User Interface Development: User-friendly configuration interface, AJAX implementation, responsive design
Quality Assurance: TestNG testing, Checkstyle code analysis, PMD static analysis, Findbugs bug detection

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Methodology

Iterative Incremental Development: Step-by-step reengineering with continuous quality validation
Analysis-Driven Approach: Comprehensive system analysis, use case evaluation, documentation review
Quality-First Design: Enterprise-grade quality assurance, automated testing, code quality validation
Legacy Modernization: Legacy system transformation, architecture refactoring, future-proof design