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Legacy App Modernization for an Insurance Tech Company

About the Client

The client was a mid-sized insurance technology firm headquartered in Chicago. It served more than 200,000 policyholders through its network of independent brokers. The firm's proprietary policy management application was the backbone of its operations, handling policy creation, renewals, claims, and compliance reporting.

Built over a decade ago on a monolithic .NET framework, the system had become increasingly slow, hard to maintain, and resistant to integration with modern tools. The aging infrastructure limited product innovation and caused frequent downtime during high-load processing periods, particularly at quarter-end.

The company’s leadership turned to Zymr to modernize the legacy system into a scalable, cloud-native platform capable of supporting faster releases, improved user experience, and long-term maintainability.

In essence, the engagement aimed to transform a brittle, outdated system into a modern, agile, and future-ready insurance platform without disrupting ongoing business operations.

Key Outcomes

Auto-scaling and monitoring minimized downtime during peak load events.
The system achieved SOC 2 Type I readiness and met state insurance IT audit requirements.

Business Challenges

The modernization initiative exposed several critical challenges across architecture, performance, and usability that hindered the client’s efficiency and growth.

  • Monolithic Architecture and Poor Scalability

The application was a single, tightly coupled codebase, making it difficult to deploy updates or scale specific modules independently. Even minor changes often required full system redeployments, causing hours of downtime.

  • Obsolete Technology Stack

The core was built on legacy .NET Framework 4.0 and relied on outdated Windows servers. The database used stored procedures extensively, slowing performance and complicating migrations.

  • Inefficient UI and Poor User Adoption

Agents and underwriters reported frustration with the outdated interface multi-step forms, non-intuitive navigation, and inconsistent performance across browsers led to inefficiencies in daily workflows.

  • Integration Bottlenecks

The system struggled to communicate with modern CRMs, payment gateways, and document management systems. APIs were limited and lacked standardized documentation.

  • Release Delays and Maintenance Overheads

Due to the complex deployment pipeline, releases occurred quarterly instead of bi-weekly. Bug fixes and patches required extensive regression testing, consuming developer time and increasing operational costs.

  • Security and Compliance Risks

The system lacked proper role-based access controls and encryption standards, raising concerns about data confidentiality and regulatory compliance with state insurance laws.

In summary, the client’s legacy system was not only slowing their business but also restricting innovation. Zymr’s challenge was to engineer a modern, cloud-ready, modular architecture that balanced modernization speed with minimal business disruption.

Business Impacts / Key Results Achieved

Zymr’s end-to-end modernization transformed the client from a legacy-bound insurer into a cloud-native, agile insurtech player. The organization now enjoys faster releases, near-zero downtime, and a platform architecture that can easily integrate with evolving insurance ecosystems.

The success of this project also strengthened the client’s market reputation, allowing them to pitch to larger carriers and regulators with confidence in their system’s reliability and compliance maturity.

With Zymr’s engineering excellence and DevOps automation, the client achieved not just operational improvement but a complete cultural shift toward continuous innovation and digital agility ensuring their technology roadmap stays ahead of industry trends.

The modernized platform delivered measurable, organization-wide improvements within six months of full rollout.

  • System Uptime: Improved from 95% to 99.9%, ensuring uninterrupted broker and customer access.

  • Deployment Velocity: Release cycles shortened by 50%, enabling bi-weekly feature updates.

  • Performance: Transaction response times improved by 45%.

  • User Satisfaction: Internal surveys showed an 80% improvement in usability ratings.

  • Cost Efficiency: Cloud migration reduced infrastructure costs by 30% year-over-year.

These results empowered the insurtech firm to reintroduce its platform as a competitive, modernized product offering — attracting new brokerage partners and increasing policy volume by 25% within the first quarter post-launch.

In conclusion, the engagement not only revitalized an aging system but also positioned the company to pursue digital-first initiatives, new integrations, and AI-driven underwriting in the near future.

Strategy and Solutions

Zymr executed a comprehensive modernization strategy combining architecture refactoring, technology upgrades, UX redesign, and DevOps automation — delivered through a carefully staged rollout to maintain service continuity.

1. Architecture Refactoring and Microservices Enablement
We began by decomposing the monolithic .NET application into discrete services using .NET Core and containerized each module for independent scalability.

  • Core functions such as Policy Management, Claims Processing, and Billing were separated into microservices.

  • Communication between services was standardized using RESTful APIs with JSON payloads.

  • Azure Kubernetes Service (AKS) was deployed to orchestrate containers, ensuring dynamic scalability and resilience.

This transformation allowed the client to scale individual services based on usage and deploy updates without affecting the entire system.

2. Cloud Migration to Microsoft Azure
Zymr migrated the application from on-premises servers to the Azure Cloud.

  • Azure SQL Database replaced the legacy on-prem database, improving query performance by 40%.

  • We implemented Azure Blob Storage for document management and backups, ensuring high availability and disaster recovery.

  • Automated load balancing and autoscaling policies ensured the platform could handle traffic surges during policy renewal seasons.

3. Modern UX/UI Redesign
The user interface was completely rebuilt using Angular and Bootstrap, offering a clean, responsive, and consistent experience.

  • Dashboards were redesigned for faster navigation and real-time visibility into policy and claims metrics.

  • Accessibility and mobile responsiveness were prioritized, enabling brokers to manage workflows on tablets and smartphones.

  • Load times dropped from 8 seconds to under 2 seconds per page.

4. API Enablement and Third-Party Integrations
Zymr developed an API gateway using Azure API Management to enable seamless integration with partner systems.

  • CRM (Salesforce) and payment processing integrations were standardized.

  • Document workflows were automated with integration to DocuSign and SharePoint Online.

  • The new API layer simplified future partner onboarding, reducing integration timelines by 60%.

5. DevOps Automation and Continuous Delivery
We introduced CI/CD pipelines using Azure DevOps to automate builds, testing, and deployments.

  • Regression testing was automated using Selenium and xUnit, improving release confidence.

  • Canary deployments and blue-green release strategies reduced downtime during upgrades.

  • Infrastructure-as-Code (IaC) templates were created for consistent provisioning and configuration.

6. Security and Compliance Reinforcement
To meet insurance industry data protection requirements, Zymr implemented robust security controls.

  • Multi-factor authentication (MFA) for all admin access.

  • End-to-end encryption with TLS 1.3 and AES-256.

  • Role-based access control (RBAC) and audit trails for sensitive transactions.

In summary, the modernization transformed the client’s policy management system into a modular, cloud-native, and user-friendly platform with significantly improved scalability, reliability, and compliance readiness.

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