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.
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.
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.
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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