Client's Testimonial

"Developers.dev was instrumental in our digital transformation. They didn't just migrate our code; they re-architected our entire platform for the future. Their C# and Azure expertise, combined with their rigorous CMMI 5 process, gave us the confidence to undertake this mission-critical project. We now deploy features 4x faster and have seen a 60% improvement in report generation speed."

Mark Robinson, VP of Engineering

Client Introduction

The client is a mid-market FinTech company based in New York, providing wealth management and reporting software to financial advisors. Their existing platform, built on an older version of the .NET Framework, was monolithic, difficult to update, and struggling to handle the growing data load from their expanding client base. They needed to modernize to stay competitive, improve performance, and accelerate the release of new features.

Problem

The client's monolithic ASP.NET application was hindering their growth. It was slow, prone to errors, and a single bug could bring down the entire system. Scaling the application was expensive and inefficient, and the tightly coupled codebase made it nearly impossible to innovate quickly.

Key Challenges

Zero Downtime Requirement: The platform was business-critical and could not afford any service interruptions during the migration.

Data Integrity: Migrating years of sensitive financial data without corruption was paramount.

Complex Business Logic: The existing application had thousands of lines of undocumented, complex business rules that needed to be preserved.

Integration with Legacy Systems: The new architecture needed to communicate seamlessly with several older, on-premise systems.

Our Solution

We proposed a phased modernization approach using the Strangler Fig Pattern. Instead of a risky "big bang" migration, we would incrementally build new features as microservices in .NET 8 and Azure, gradually "strangling" the old monolith until it could be fully decommissioned.

🔍 In-depth Assessment

Our solution architects conducted a thorough analysis of the existing codebase and infrastructure.

🏗️ Microservices Architecture Design

We designed a new, decoupled architecture on Azure Kubernetes Service (AKS), with each business domain (e.g., reporting, portfolio management, compliance) becoming a separate microservice.

🏃 Agile Development POD

We assigned a dedicated POD (Product-Oriented Delivery) team consisting of a Project Manager, two Senior C# Architects, four C# Developers, a QA Automation Engineer, and a DevOps expert.

🔒 Secure API Gateway

We implemented an Azure API Gateway to route traffic between the new microservices and the old monolith, ensuring a seamless user experience throughout the transition.

Implementation and Execution

Set up a secure, compliant CI/CD pipeline using Azure DevOps.

Began by externalizing the authentication module into a new identity service.

Developed the new reporting microservice, leveraging Azure SQL for scalability.

Built a data synchronization mechanism to ensure consistency between the old and new databases.

Conducted rigorous automated performance and security testing for each new service.

Incrementally redirected traffic from the old reporting module to the new microservice, monitoring performance closely.

Positive Outcome

⚡ 4x Faster Feature Delivery

The decoupled architecture allowed for independent development and deployment, drastically reducing the release cycle time.

🚀 60% Performance Boost

Report generation times were cut by more than half, significantly improving customer satisfaction.

✅ 99.99% Uptime

The new cloud-native architecture on Azure provided high availability and resilience, eliminating previous stability issues.

💰 25% Reduction in Infrastructure Costs

By moving to a scalable, consumption-based model on Azure, the client optimized their hosting expenses.

Why Choose Us

🌟 Proven Modernization Strategy

We used a low-risk, proven pattern for a seamless transition.

☁️ Deep Azure Expertise

Our Microsoft Gold Partner status ensured we used the best of the Azure ecosystem.

📜 CMMI 5 Process

Our mature processes guaranteed quality and predictability.

🤝 Dedicated POD Model

The client got a fully managed, cross-functional team.

🛡️ Security-First Approach

Our SOC 2 compliance ensured financial data was handled securely.

🗣️ Transparent Communication

The client had full visibility through Jira and daily stand-ups.

⚙️ Agile Methodology

We adapted to changing requirements throughout the project.

🧑‍💻 In-House Talent

The team was consistent, ensuring knowledge was retained.

🏆 Outcome-Oriented

We focused on business results, not just lines of code.

Conclusion

By partnering with Developers.dev, the client successfully transformed their legacy platform into a modern, scalable, and secure asset. This not only solved their immediate technical challenges but also positioned them for future growth and innovation in the competitive FinTech landscape.

Modernizing a Legacy Financial Platform to a Scalable Microservices Architecture for a US-Based FinTech Leader

Industry FinTech