Open to opportunities

William Carter

@williamcarter1

Senior .NET software engineer and architect building resilient Azure cloud-native systems through microservices and CI/CD.

United States

Message

What I'm looking for

I want to architect and ship cloud-native .NET microservices on Azure, with strong DDD/Clean Architecture, CI/CD, and observability—while mentoring teams to deliver secure, resilient systems that scale.

I’m a Senior .NET Software Engineer & Architect with 12 years of experience designing and delivering high-performance, cloud-native web applications. I architect scalable solutions on the Azure platform using .NET 7+, Entity Framework Core, and microservices architecture to support maintainability and rapid, reliable deployment.

I excel at establishing robust engineering practices—CI/CD pipelines via Azure DevOps, Domain-Driven Design (DDD), and clean code principles—so systems stay resilient and easy to evolve. At Big Health, I adopted DDD and Clean Architecture, optimized REST APIs, and led CQRS and event-driven patterns with MediatR and Azure Service Bus; this work improved code maintainability and scalability by 40% while enabling real-time patient data processing.

I focus heavily on delivery quality and operational excellence. I integrated Serilog, Application Insights, and Azure Monitor to track performance and detect anomalies, reducing MTTR by 30%, and used tools like dotTrace and SQL Profiler to cut response times by 25% during high-traffic periods. I also enhanced security and compliance with RBAC, MFA, and OAuth2 to align with HIPAA requirements.

Across my roles—from KeyBank to Cashdrop Inc—I’ve built systems that scale and modernize legacy platforms. I’ve automated deployments (e.g., reducing deployment time by 60%), containerized services with Docker and AKS, and delivered end-to-end solutions ranging from healthcare portals to e-commerce microservices.

Experience

Work history, roles, and key accomplishments

Senior .NET Software Engineer

Big Health

May 2022 - Apr 2026 (3 years 11 months)

Adopted Domain-Driven Design and Clean Architecture with C#, improving code maintainability, scalability, and testability by 40%. Optimized ASP.NET Core REST APIs to handle 10,000+ requests daily, automated workflows with Hangfire/Azure Queue Storage and Azure Functions/Data Factory (50% less manual work), and reduced MTTR by 30% using Serilog, Application Insights, and Azure Monitor.

C++.NET ASP.NET Core Domain Driven Design Azure Service Bus Azure Data Factory

NET Engineer

KeyBank

Jul 2016 - Apr 2022 (5 years 9 months)

Architected and built C#/.NET Core and Blazor solutions that improved online learning engagement by 20% and reduced response times by 20% while increasing system reliability by 30% via async programming and caching. Delivered CI/CD automation (50% faster deployments) using Jenkins/GitLab/Azure DevOps, implemented event-driven microservices with Kafka and Azure Service Bus/NServiceBus, and achieved

C# .NET Core Blazor CI CD Gitlab Azure DevOps Kafka Azure Service Bus NUnit Docker Kubernetes

.NET Full Stack Developer

Cashdrop Inc

Jul 2013 - Jun 2016 (2 years 11 months)

Led design and implementation of an ASP.NET Core/Azure/AKS e-commerce platform handling 1M+ transactions per day, improving performance and deployment time by 50% through migration to microservices. Built scalable APIs and real-time systems using Cosmos DB, Azure Search, SignalR, and Redis, integrated Stripe/PayPal with OAuth2/JWT-based secure checkout, and increased customer retention by 20%+ via

ASP.NET Core Microservices SignalR Redis