5 net core developer jobs at 3 companies in Baldwin, FL

1w
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Software Developer
Jacksonville, Florida, United States
OnsiteFull Time
The Energy Authority
The Energy Authority: Provides energy portfolio management and trading services to public utilities.
5+ YOE5+ years software development experience, proficiency with .NET/C#/ASP.NET/Core, Angular, T-SQL, Visual Studio/VS Code, Git, JavaScript/TypeScript, and experience in agile environments; bachelor's degree or equivalent.
.NET 3.5, C#, ASP.NET, ASP.NET Core, Angular, MongoDB, T-SQL, EF, Microsoft Visual Studio, VS Code, Git, JavaScript, TypeScript, HTML5, CSS, NPM, Agile, ES6, RxJs, NgRx, Microsoft Azure DevOps, MSTest, Lean, Kanban, PowerShell, Slack, KendoUI, SignalR, Service Fabric, Docker, Kubernetes, Microsoft Azure, Figma, MCSD
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
3w
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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
3w
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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
2mo
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Sr. Manager Software Engineering
Jacksonville, Florida, United States
HybridFull Time
RF-SMART
RF-SMART: Provides mobile warehouse management and inventory tracking software
7+ YOE5+ Mgmt7+ years hands-on SaaS development,5+ years managing engineering teams,deep AWS experience,C#/.NET Core and React proficiency,CI/CD and DevOps familiarity,ability to lead technical decisions and QA standards.
AWS, C#, .NET Core, React, PostgreSQL, GitHub Actions, Terraform, Docker, ECS