Senior Full Stack .NET Blazor Developer

Austin, TXPosted Aug 5, 2026

ASSYST is seeking a Senior Full Stack .NET Blazor Developer to support our client in the design, development, enhancement, and maintenance of modern web-based applications. The ideal candidate will have strong expertise in .NET technologies, C# Blazor development, front-end and back-end web technologies, database programming, and Agile software development methodologies. This role requires experience collaborating with cross-functional teams, resolving technical issues, modernizing legacy applications, and delivering responsive, accessible, and high-quality software solutions.

Job Title: Senior Full Stack .NET Blazor Developer
Location: Austin, TX (Onsite)

Roles & Responsibilities

Design, develop, enhance, and maintain web-based software applications using modern development frameworks and technologies.
Perform root cause analysis, troubleshoot technical issues, and implement effective resolutions.
Develop and maintain applications using technologies including .NET, C#, ASP.NET, JavaScript, HTML, HTML5, CSS, SQL, Oracle, SQL Server, and Stored Procedures.
Build responsive, user-friendly, and scalable web applications following modern web development best practices.
Develop applications using C# .NET Blazor and support modernization initiatives by migrating existing Java or Windows Forms applications to C# .NET Blazor.
Collaborate with cross-functional team members throughout all phases of the Software Development Life Cycle (SDLC), including requirements gathering, development, testing, implementation, and maintenance.
Participate in Agile development processes and contribute to sprint planning, development activities, and continuous improvement initiatives.
Present software application changes and demonstrations to stakeholders to obtain approval for proposed solutions and designs.
Utilize Azure DevOps, Jira, or similar tools to manage development tasks, track progress, and support project delivery.
Implement responsive web design principles to ensure applications function effectively across multiple devices and platforms.
Develop applications that comply with Web Content Accessibility Guidelines (WCAG) to support accessibility standards.
Work collaboratively with team members to support application enhancements, modifications, and ongoing maintenance activities.

Required Skills

10+ years of experience developing web-based software applications.
Strong experience performing root cause analysis and issue resolution.
Proficiency in programming languages and technologies including .NET, C#, ASP.NET, JavaScript, HTML, HTML5, CSS, SQL, Oracle, SQL Server, and Stored Procedures.
Hands-on experience with C# .NET Blazor development.
Experience migrating or porting applications from Java or Windows Forms to C# .NET Blazor.
Strong understanding of front-end and back-end development methodologies.
Experience working within Agile SDLC environments.
Experience collaborating with development teams on software development, enhancements, maintenance, and requirements gathering.
Experience presenting application demonstrations and design changes to stakeholders.
Experience using Azure DevOps, Jira, or similar project management and development tools.
Knowledge of responsive web design principles and implementation.
Knowledge of Web Content Accessibility Guidelines (WCAG) and accessibility implementation.
Previous experience working with TDA systems is preferred.

ASSYST is an Equal Opportunity Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, disability, military status, national origin or any other characteristic protected under federal, state, or applicable local law.