Available to hire
Hi, I’m Carl Johnson, a Senior Software Engineer / Tech Lead with 9+ years delivering scalable, secure, high-performance enterprise applications. I specialize in C#, .NET, ASP.NET Core, REST APIs, microservices, and cloud-native architectures on Azure, with a focus on healthcare and financial services domains.
I collaborate with product owners, project managers, customers, and third-party vendors to translate requirements into engineering designs, CI/CD pipelines, and maintainable documentation. I enjoy mentoring engineers, leading cross-functional teams, and delivering reliable solutions on schedule.
Skills
Experience Level
Expert
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Language
English
Fluent
Work Experience
Senior Software Engineer / Tech Lead at Microsoft
May 1, 2023 - January 1, 2026Developed and maintained Angular front-end components for healthcare applications; built cloud-native solutions using Azure App Service, Azure Functions, Azure API Management, and Azure Storage; designed ETL pipelines with SSIS; optimized SQL Server data access; integrated Azure OpenAI and Azure AI Services for intelligent search, summarization, and document processing; implemented asynchronous and event-driven messaging with Azure Service Bus; modernized legacy components into microservices; containerized with Docker and Kubernetes; improved observability with Application Insights and Azure Monitor; built CI/CD pipelines with Azure DevOps and IaC; implemented OAuth 2 / OpenID Connect with RBAC and secure API design.
Senior Software Engineer / Tech Lead at McKesson
January 1, 2020 - April 1, 2023Leveraged GitHub Copilot and AI-assisted engineering tools to accelerate implementation, documentation, and test generation while upholding strong engineering standards and release governance. Designed and developed modular C#/.NET Core 6 microservices and ASP.NET Core APIs to modernize banking-related healthcare workflows, supporting loan, account, and payment processing. Built backend services and RESTful APIs, implemented data access layers with SQL Server/Entity Framework Core, and integrated with internal banking platforms and third-party systems using JSON and SOA patterns. Implemented secure, compliant enterprise integrations and established CI/CD pipelines with RESTful services and monitoring.
Software Engineer
August 1, 2016 - December 1, 2019Developed and supported healthcare enterprise applications and integration services to improve operational workflows, data exchange, and application stability in a compliance-sensitive environment. Worked with C#, .NET, ASP.NET MVC, and Web API; designed SQL Server database components (tables, views, stored procedures, triggers), ETL-oriented data integration, and collaborated with stakeholders to translate requirements into reliable technical solutions.
Remote Software Engineer at Wells Fargo & Company
January 1, 2020 - April 1, 2023Developed and supported backend systems and data flows for banking applications, focusing on backend API development, enterprise integrations, security controls, messaging, SQL performance, and production stability. Built CI/CD pipelines, automated tests, and monitoring to improve reliability and operational visibility across distributed systems. Collaborated with product owners, QA, DevOps, and compliance teams to deliver compliant, scalable solutions.
Education
B.S. in Computer Science at Texas Tech University
January 11, 2030 - May 1, 2016Qualifications
B.S. in Computer Science
January 11, 2030 - May 1, 2016Industry Experience
Healthcare, Financial Services, Software & Internet, Professional Services
Skills
Experience Level
Expert
Expert
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