Engineered high-throughput .NET/C# microservices processing tens of millions of daily ticket orders for primary and secondary marketplaces. Diagnosed and resolved complex, cross-service order malfunctions in multi-tenant point of sale integrations, serving as a primary investigator for failures spanning the distributed architecture. Modernized legacy monoliths into a coordinated distributed architecture using RabbitMQ for reliable task orchestration and Amazon SQS for "pull-only" ticket ingestion. Participated in a high-stakes platform migration, refactoring inventory and ticket management logic to ensure seamless service integration. Delivered full-stack features with Angular and .NET (C#, SQL, JavaScript). Improved system reliability and code coverage through rigorous XUnit and Moq testing.

Developed an efficient order management microservice with TypeScript, gRPC, and CouchDB. Streamlined Teespring creator store deployments using TypeScript, Node.js, and Netlify, reducing deployment times from 4 days to 30 minutes. Implemented an advanced customer tracking system in Amaze Studio, enhancing user retention with React, Node.js, DBT, Hevo, Postgres, Snowflake, Google Analytics, Google Tag Manager, and Tableau. Led a team of four engineers in agile development and testing practices.

Developed a streamlined "quick claim" home warranty process, eliminating formal logins. Enhanced address lookups through an Elastisearch-powered ASP.NET API. Integrated a third-party call center app into an Electron.js-based internal tool for PCI-compliant call recording tracking. Transformed a 25-year-old VB6 app into a modern ASP.NET and Entity Framework online ordering system. Provided intricate SQL solutions and managed AWS instances and lambdas, resolving business logic issues and ensuring smooth deployments.

Led middleware contributions in a significant Asp.Net Core + React/Redux project. Created complex SQL scripts, REST APIs using ASP.Net Core Web API with Entity Framework and Identity. Improved performance with GraphQL, scaled using Azure App Service Containers, and led a team of ten. Utilized CQRS pattern, documented and tested APIs with Swagger and Postman, meeting deadlines through Agile planning.

Revamped Silverlight app into modern React/Mobx-State-Tree SPA with ASP.NET Core backend. Enhanced email delivery via microservice, handling six million daily emails. Transformed ASP.Net Webforms site into React/Redux SPA with ASP.NET Core API. Implemented secure customer data transmission with API login/token mechanisms. Managed extensive SQL data. Created unit and integration tests for frontend/backend using Mocha/Chai, Cypress, and NUnit. Set up CI, Git repos, and Azure Kanban boards.