Tyler Csurilla

Supported internal application development and tooling at a major U.S. financial services company. Automated large-scale configuration file updates with JavaScript to replace a time-consuming manual process with a repeatable workflow. Built Playwright for .NET browser-based UI tests to validate core workflows and reduce reliance on manual regression testing. Configured Microsoft Entra ID single sign-on for secure, centralized access. Wrote and used SQL queries to retrieve and validate application data for testing and troubleshooting, improving time to diagnosis during incidents. Participated in Agile ceremonies, code reviews, and maintained documentation for automation scripts and test coverage in Confluence, using Postman/Swagger for REST API verification and Jira to track coverage and work items.

Worked on internal tooling and a customer-service platform modernization for institutional clients in an Agile environment. Led a full rewrite of a legacy internal banking portal using Angular and Java/Spring Boot, replacing the old system with a secure, maintainable platform for a large internal user base and improving performance by eliminating slow page loads. Built reusable React components for customer-service scripting workflows that adapt content based on customer profile data, request type, and applicable legal requirements. Implemented AES-256 encryption in C#/.NET for sensitive data (including SSNs) with server-side authorization checks to control who can access decrypted values. Developed Dataverse integration logic to map and migrate records from a legacy banking database using batch imports to avoid timeouts. Modified/debugged C# Azure Functions using runtime logs and Application Insights for production issue diagnosis; authored SQL investigations against Dynamics 365 data

Joined the same platform team to deliver Microsoft Dynamics 365 and Power Apps enhancements for client-facing workflows. Built responsive Power Apps interfaces with form layouts and user workflows aligned to UX and accessibility standards. Developed C# Dynamics 365 plugins to automate business processes on record events and enforce validation rules. Modeled data structures for new features, authored REST API endpoints, and implemented integration logic connecting front-end interfaces to backend data services. Tested plugins and API endpoints with Postman, tracked work in Jira, and used Git/GitHub for version control and pull requests while participating in Agile stand-ups and sprint reviews.