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3 net core developer jobs at 1 company in Neptune Beach, FL

2mo
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Senior Software Engineer
Jacksonville, Florida, United States
OnsiteFull Time
Advantage Design Group: Provides interactive, video-driven onboarding and recruiting platforms.
5+ YOE5+ years web development; .NET/C#; ASP.NET Core; SQL Server; REST/SOAP APIs; Azure; CI/CD; mentoring.
.NET Core, C#, ASP.NET Core, SQL Server, Git, Azure, IIS, Kestrel, REST APIs, SOAP, Swagger, Postman, OAuth2, SAML, WCAG, Azure DevOps, CI/CD, Umbraco, Examine search, Docker, Kubernetes, Salesforce integration
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1mo
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Senior Web Engineer Team Lead
Jacksonville, Florida, United States
$120k-$150k/yr HybridFull Time
Advantage Design Group
Advantage Design Group: Builds web platforms that power interactive, video-driven onboarding and orientation experiences for higher-education institutions.
7+ YOE3+ Mgmt7+ years web development, 3+ years technical lead experience. Strong C#, .NET Core, ASP.NET Core MVC, Umbraco, Microsoft SQL Server, REST APIs, Azure, CI/CD, IIS, Windows Server, and team mentoring skills.
C#, Microsoft .NET Core, Microsoft ASP.NET Core MVC, Umbraco, Microsoft SQL Server, HTML, CSS, JavaScript, Razor, CSHTML, Microsoft Visual Studio, Git, Microsoft Azure DevOps, GitHub Actions, Microsoft Azure, REST APIs, AJAX, JSON, OpenAPI (Swagger), Postman, IIS, Microsoft Windows Server, Docker, Kubernetes, Salesforce, Workday, Ellucian, OAuth2, SAML, OpenID Connect, DevSecOps
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Senior Full Stack AI Engineer
Jacksonville or Iselin or Washington
$110k-$190k/yr OnsiteFull Time
Fortegra
Fortegra: Provides specialty insurance products and warranty service solutions.
7+ YOE7+ years software engineering, expert React, backend framework experience (Node.js, Python, .NET Core), secure public-facing app and cloud architecture experience, hands-on use of AI coding tools and agentic workflows.
React, Node.js, NestJS, Express, Python, FastAPI, Django, Microsoft .NET Core, AWS, Microsoft Azure, GCP, Claude Code, GitHub Copilot, Cursor, Replit, Lovable
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