Senior .NET Core Web Developer - Secure Apps (On-Site)

RiseMe; San Antonio (TX); On-site; USD 85,000 - 110,000; Full time

Job summary

BDR Solutions, LLC is seeking a senior full-stack developer to build secure intranet and restricted web applications using C#, .NET Core, Blazor, Razor Pages, and modern JS frameworks. The role focuses on end-to-end delivery, API integration, and secure coding practices in an on-site setting in multiple U.S.

locations. You will work with Entity Framework Core, SQL Server, and IIS/Windows Server, contribute to CI/CD, and participate in code reviews within a SAFe Agile environment.

Qualifications

• Minimum of 8 years with BS/BA; 12 years of experience with a high school diploma.
• Strong experience developing and maintaining web applications using C# and .NET 8+/ASP.NET Core.
• Experience with modern front-end web development, including JavaScript and/or TypeScript, component-based application design, state management, and integration with RESTful APIs.
• Experience working with SQL Server or other relational databases, including developing and maintaining SQL queries, stored procedures, table and column definitions, and other database objects.
• Experience designing and maintaining applications within an established architecture, including use of shared development patterns, reusable components and services, appropriate service boundaries, and maintainable database access patterns.
• Ability to troubleshoot full-stack application issues across the UI, API, and database layers; identify root causes; and evaluate changes.
• Experience with Git-based development workflows, branching, merge/pull requests, and automated build or test processes.
• Demonstrated ability to independently carry development tasks from requirements through implementation, testing, and delivery.
• Strong written and verbal communication skills and ability to document technical decisions.

Responsibilities

• Develop and maintain secure, restricted web applications.
• Implement C#, .NET Core, Razor Pages, Blazor components.
• Build modern front-end components using JavaScript/TypeScript.
• Integrate REST APIs and backend data services.
• Utilize Entity Framework Core for data access.
• Manage and configure SQL Server databases.
• Work with IIS/Windows Server environments.
• Troubleshoot full-stack issues across UI, API, and database layers.
• Remediate SAST/DAST findings and ensure application security.
• Support OIDC/OAuth authentication (Login.gov integration).
• Write unit and integration tests and support CI/CD workflows.
• Participate in code reviews and collaborate within SAFe Agile.
• Apply AI-assisted development responsibly.

Skills

C#

ASP.NET Core

Blazor

Razor Pages

JavaScript/TypeScript

REST APIs

Unit testing

SAFe Agile

AI-assisted development

Security best practices

Education

Bachelor's degree

High School Diploma + 12 years experience

Tools

Entity Framework Core

SQL Server

Git

IIS/Windows Server

Job description

BDR Solutions, LLC is seeking a senior full-stack developer to build secure intranet and restricted web applications using C#, .NET Core, Blazor, Razor Pages, and modern JS frameworks. The role focuses on end-to-end delivery, API integration, and secure coding practices in an on-site setting in multiple U.S.

locations. You will work with Entity Framework Core, SQL Server, and IIS/Windows Server, contribute to CI/CD, and participate in code reviews within a SAFe Agile environment.