The Challenge
A loan processing workflow relied on manual steps and aging backend logic that made it difficult to scale processing volume or introduce change without risking existing operations. The team needed a way to modernize the workflow incrementally, without a disruptive full rewrite.
The Role
WALTIQ designed and implemented backend services and REST APIs for the workflow, and optimized the underlying SQL procedures responsible for processing and reporting.
The Approach
Rather than replacing the system outright, the workflow was decomposed into smaller .NET microservices with clear responsibilities. Existing SQL procedures were reviewed and optimized in place, and new REST endpoints were introduced to connect the modernized services to the rest of the platform — reducing risk while steadily improving maintainability.
Key Engineering Work
- Designed and implemented .NET microservices for core workflow steps
- Built REST APIs to connect modernized services with existing systems
- Reviewed and optimized SQL stored procedures for the processing pipeline
- Automated previously manual steps in the loan processing workflow
- Coordinated changes to minimize disruption to live operations
Outcome
The modernized workflow automated processing for a meaningful share of clients and measurably improved data-processing efficiency, while keeping the system operational throughout the transition.