FinTech Platform Modernization: Scaling a Legacy Payment Gateway with Codeigniter
Industry FinTech
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$10B+ Client Revenues
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12+ Successful Years
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1000+ IT Ninjas
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5000+ Projects
Client's Testimonial
The team at Developers.dev transformed our legacy system from a liability into a competitive advantage. Their expertise in both modern Codeigniter and financial security standards was exceptional. The project was completed on schedule, and our platform performance has improved by over 200%.
Mark V. Johnson, CTO
Client Introduction
A US-based mid-sized FinTech company providing payment processing services. Their existing platform was built on an outdated version of a custom PHP framework, leading to slow performance, security vulnerabilities, and an inability to add new features quickly. They needed to modernize their core application to remain competitive and compliant.
Problem
The client's core payment gateway was becoming a bottleneck. It was slow, difficult to maintain, and lacked the security features required by modern compliance standards. Adding new partner integrations took months instead of weeks.
Key Challenges
Migrating a Live System
Needed to migrate a live, mission-critical system with zero downtime.
Data Integrity & Security
Ensuring all existing data was migrated securely and with 100% integrity.
PCI DSS Compliance
Meeting stringent PCI DSS compliance requirements in the new application.
Performance Improvement
Improving application performance and reducing transaction processing time.
Our Solution
We assembled a dedicated "Legacy App Rescue" POD to execute a phased modernization strategy.
Deep-Dive Audit
We began with a comprehensive audit of the existing codebase and architecture to identify all dependencies and security gaps.
Strategic Re-architecture
We designed a new, robust architecture using Codeigniter 4, focusing on a service-oriented approach to decouple core functionalities.
Secure Migration
We developed custom migration scripts to transfer data seamlessly and built the new application with OWASP best practices at its core.
Performance Engineering
We optimized database queries, implemented caching layers with Redis, and fine-tuned the server environment for maximum throughput.
Implementation and Execution
Parallel Systems Run
We ran the new and old systems in parallel for a two-week period to ensure consistency.
Agile Sprints & Demos
Agile sprints were used to deliver functionality in manageable, testable chunks.
Rigorous QA & Testing
A dedicated QA team performed rigorous testing, including load testing and security penetration testing.
CI/CD Pipeline
Our DevOps team created a full CI/CD pipeline to automate future deployments.
Transparent Progress
The client had full visibility through a shared Jira board and weekly demo calls.
Flawless Cutover
The final cutover was performed during a low-traffic window and was completed flawlessly.
Positive Outcome
220% Performance Boost
Transaction processing times were reduced from an average of 5 seconds to under 1.5 seconds.
Full PCI DSS Compliance
The new application passed all security audits on the first attempt.
Faster Time-to-Market
Integrating new payment partners now takes 2 weeks instead of 2-3 months.
Reduced Maintenance Costs
The clean, well-documented codebase reduced the effort required for maintenance by 40%.
Why Choose Us
Expertise in FinTech
Our team possesses deep knowledge and experience in the financial technology domain.
Proven Migration Process
A well-established and successful methodology for complex system migrations.
CMMI-5 Process Maturity
Our projects adhere to the highest standards of process discipline and quality.
Security-First Approach
Every solution is built with security at its foundation, mitigating risks from the start.
Dedicated POD Model
We provide focused, agile teams fully committed to your project's success.
Transparent Communication
Clients are kept informed with clear, regular updates and open channels.
Performance Optimization Skills
Our engineers are experts in maximizing application speed and efficiency.
DevSecOps Capabilities
Integrated development, security, and operations for robust and secure delivery.
Full IP Ownership
The client retains complete ownership of all intellectual property developed.
Conclusion
By partnering with Developers.dev, the client successfully modernized their core platform, turning a critical business risk into a powerful, scalable asset. This project demonstrates our ability to handle highly complex, mission-critical modernization projects with precision and expertise.