Legacy Invoicing Infrastructure Migration for a Global Transportation Provider
Techstack partnered with a leading global provider of transportation services in the Roll-on Roll-off (RoRo) segment to modernize their legacy invoicing application infrastructure. The partner required full technical support to migrate their existing invoicing system from Glassfish 4 to JBoss 7 application server while upgrading their entire technology stack and deployment processes. Techstack provided full-stack development services, DevOps implementation, quality assurance, and technical consulting to ensure a smooth transition and improved system performance.
Transportation and Logistics
Back End Development, Cloud / DevOps, Consulting Service, Software Testing
United States
Challenge
The migration presented several critical technical and operational challenges: 1. No in-house technical expertise: The partner lacked the internal technical knowledge necessary to execute the complex migration process independently. 2. Legacy tech stack components: The existing system relied on legacy technology components that required careful evaluation and upgrading for better performance. 3. No automated infrastructure configuration and deployment: Manual deployment processes created inefficiencies and increased the risk of errors during system updates.
Solution
Techstack implemented a structured migration strategy that addressed all technical and infrastructure challenges. The team executed the following actions:
• Migrated the invoicing application from Glassfish 4 to Jboss 7 application server
• Evaluated and upgraded outdated technology stack components for compatibility and performance optimization
• Transitioned source code and artifacts management from Azure DevOps to GitHub and GitHub Packages
• Facilitated migration from Windows servers to Linux (openSUSE) infrastructure
• Implemented automated infrastructure setup using Ansible
• Provided comprehensive technical guidance and support throughout the entire migration process
• Delivered full-stack development services including front-end, back-end, and quality assurance
Technologies Used
The solution was built on a carefully selected technology stack that balanced modernization goals with the constraints of migrating a live production system. Each component was chosen to ensure compatibility with the existing business logic while enabling long-term maintainability and operational efficiency.
The workflow
The migration process followed a structured, phase-by-phase approach — balancing technical precision with business continuity to ensure zero disruption to live operations:
Technical assessment
The team conducted a thorough evaluation of the existing Glassfish 4 environment, mapping all application dependencies, legacy components, and infrastructure configurations. This stage defined the full scope of migration requirements and identified compatibility risks before any changes were made to the production system.
Infrastructure planning
Based on the assessment findings, the team designed the target JBoss 7 architecture and planned the transition to Linux (openSUSE) servers. This included defining the Ansible automation strategy for infrastructure configuration and outlining the source control migration path from Azure DevOps to GitHub.
Code migration
Application components were systematically migrated to the new platform, with careful handling of EJB2.1 and EJB3 compatibility, Struts/JSP frontend adjustments, and Oracle Database integration. The team upgraded outdated stack components in parallel to ensure compatibility and performance on the target environment.
DevOps implementation
Automated infrastructure configuration was established using Ansible, replacing error-prone manual deployment processes. This stage laid the foundation for consistent environment management across all stages of the deployment lifecycle, directly reducing configuration drift and human error.
Source control transition
The team migrated source code and artifact management from Azure DevOps to GitHub and GitHub Packages, establishing improved branching workflows, package versioning, and release management practices that accelerated the overall development cycle.
Testing and validation
Manual and automated QA engineers conducted thorough testing across all migrated components to verify system stability, functional correctness, and performance on the new infrastructure. Testing was performed iteratively throughout the migration rather than as a single final gate.
Deployment optimization
With the migration validated, the team finalized the deployment pipeline and handed over a fully documented, stable invoicing system running on the modernized stack. Ongoing technical guidance was provided to ensure the partner's team could confidently manage and maintain the new infrastructure going forward.
About the team
A lean, cross-functional team handled the project end-to-end — from architecture design and development to quality assurance.
Impact
The migration delivered significant improvements in system performance, reliability, and operational efficiency:
• Successfully completed the migration from Glassfish 4 to Jboss 7 application server with smooth transition
• Enhanced development workflow through improved source code and artifacts management with GitHub integration
• Achieved better system stability and cost-efficiency through transition to Linux servers
• Simplified infrastructure configuration with Ansible automation, reducing manual effort and ensuring consistency
• Delivered 30% fewer deployment errors through consistent environment management
• Achieved 40% faster releases with improved GitHub and package management workflows
The solution provided the partner with a modernized, stable invoicing application that streamlined their billing processes while significantly improving their technical infrastructure and deployment capabilities.
