Mission-Critical Legacy Modernization: How a European Bank Ensured GDPR & SOC 2 Compliance with a Dedicated DevSecOps Pod
Industry FinTech & Banking
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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 decision to modernize our core platform was the most critical technology initiative in our bank's last decade. We chose Developers.dev because their certifications-SOC 2, ISO 27001, CMMI Level 5-were not just paper. They lived and breathed security and process. Their DevSecOps pod didn't just give us a new platform; they gave us the confidence to compete in the digital-first banking era."
Klaus Richter, Chief Information Officer, EuroBank AG
Client Overview
A well-established mid-sized bank in Germany with over €10 billion in assets. Their core banking platform was built on a monolithic Java architecture from the early 2000s. The system was difficult to update, expensive to maintain, and posed a significant compliance risk due to its outdated security protocols. They needed a partner with deep expertise in both financial services and complex, secure system modernization.
Problem
The bank's legacy platform was hindering its ability to launch new digital products. Every minor change required months of development and testing. Furthermore, regulators were applying increasing pressure regarding the platform's security and compliance with GDPR and new FinTech directives, posing a direct threat to their operating license.
Key Challenges
Extreme Security Requirements:
The project required handling highly sensitive customer financial data, mandating strict adherence to GDPR, and passing SOC 2 audits.
Zero Downtime Mandate:
The migration had to occur with zero disruption to daily banking operations.
Complex Legacy Code:
Decades of undocumented code and complex interdependencies made the system incredibly difficult to untangle.
Regulatory Scrutiny:
The project was under constant review by internal audit and external financial regulators.
Our Solution
We deployed a multi-faceted team built around a core of security and compliance.
🧩 Java Microservices Pod
A team of 8 senior Java developers with expertise in the Spring Boot framework was tasked with decomposing the monolith into a series of independently deployable microservices.
⚙️ DevSecOps Automation Pod
This critical 4-person team built a completely new, secure CI/CD pipeline on Azure DevOps. They embedded security scanning tools (SAST, DAST) directly into the pipeline and automated infrastructure deployment using Terraform.
📊 Data Governance & Quality Pod
A specialized 2-person team focused on the secure and compliant migration of customer data from the legacy Oracle database to a modern PostgreSQL cluster.
✅ Compliance Stewardship
Our delivery model included a dedicated compliance manager who interfaced directly with the bank's audit team, providing documentation and evidence of our secure processes.
Implementation and Execution
Discovery & Risk Assessment
We mapped the entire legacy system and created a detailed, phased migration plan using the Strangler Fig Pattern.
Microservices Architecture & Secure Azure Infrastructure
We built the new microservices architecture and the secure Azure infrastructure in parallel. The DevSecOps pod delivered a fully automated, compliant pipeline.
Traffic Redirection & Data Migration
We began carefully redirecting traffic, service by service, from the old monolith to the new microservices. The data migration was performed in carefully planned stages.
Third-Party Penetration Test
A full penetration test was conducted by a third-party firm, which our platform passed with no critical vulnerabilities found.
Platform Go-Live & Decommissioning
100% of traffic was now served by the new platform. The legacy system was successfully decommissioned.
Ongoing Support & Monitoring
We transitioned to a smaller Compliance / Support POD to provide ongoing maintenance and continuous security monitoring.
Positive Outcome
✅ Achieved Full Compliance
The new platform successfully passed its SOC 2 Type II audit and fully complies with all GDPR requirements, satisfying regulators.
🚀 90% Faster Deployments
The bank can now deploy new features and security patches in hours instead of months, dramatically improving their agility.
🛡️ Reduced Operational Risk
The modern, observable platform reduced the risk of critical outages and security breaches by an estimated 80%.
💰 Lower TCO
The new cloud-native platform reduced infrastructure and maintenance costs by 35% annually.
Why Choose Us
✅ Verifiable Process Maturity
We have a dedicated POD with deep expertise in both IoT hardware integration and cloud software development.
🔒 Full IP & Data Security
We managed the entire project, from hardware selection to cloud architecture and custom software.
🤝 An Ecosystem, Not a Body Shop
We started by understanding the business risk and designed a technology solution to solve it.
🗓️ Proven Track Record Since 2007
Our architects are experts in building systems that handle high-volume, real-time data streams.
🛡️ Cyber-Security Engineering Pod
We built a solution tailored perfectly to MedHaul's unique workflow, not a one-size-fits-all product.
☕ Java Micro-services Pod
The AWS platform can scale to handle tens of thousands of devices as MedHaul grows.
📊 Data Governance & Data-Quality Pod
The solution provides the immutable, verifiable log that the industry demands.
⚙️ DevSecOps Automation Pod
The platform transformed their operations from reactive to proactive.
💡 Deep & Broad Tech Expertise
The investment in the platform paid for itself within the first six months through saved product and reduced insurance costs.
Conclusion
This project showcases our ability to handle extremely complex, high-stakes enterprise modernizations where security and compliance are paramount. Our certified processes and specialized PODs provided the bank with not just a technical solution, but the strategic certainty required to transform their business.