Blazor UI Developer

Job Description

Job Title:
Mid-Level Blazor UI Developer

Employment Type: Full-Time W-2 Contract (1-Year Contract with potential for extension)

Work Location: Rockville, MD

Work Authorization: Candidates must be legally authorized to work in the United States. Visa sponsorship is not available for this position.

The Mid-Level Blazor UI Developer will support the U.S. Government Publishing Office's (GPO) XPub modernization program, a major initiative replacing GPO's legacy Microcomp composition engine with a modern, document-centric publishing platform. The developer will contribute to the Horseshoe Editor, a Blazor Server-based application used to create, edit, proof, approve, and publish legislative and regulatory documents for Congress and Federal agencies.

This hands‑on development role focuses on building and maintaining Blazor Server user interface components, translating XML content into interactive HTML, implementing browser‑based user interactions, and integrating client‑side functionality with C# application logic. The successful candidate will collaborate with Government technical staff and Agile development teams while following established coding standards, security practices, and software development processes.

• Develop and maintain Blazor Server UI components supporting document‑centric web applications.
• Translate XML document structures into interactive HTML for display and editing within the application.
• Build reusable UI components using C#, Razor, HTML, CSS, and JavaScript.
• Implement browser event handling including input, change, focus, keyboard, mouse, and selection events.
• Utilize JavaScript interoperability (JS Interop) to retrieve and process user selections, edits, and browser DOM state.
• Work directly with the browser Document Object Model (DOM) to support rich editing functionality.
• Follow established CSS methodologies such as BEM to create maintainable and scalable user interfaces.
• Develop secure client‑side and server‑side code consistent with Government security requirements.
• Participate in code reviews and ensure compliance with coding standards and architectural guidelines.
• Manage source code using Azure Dev Ops Git repositories, including branching, merging, pull requests, and code reviews.
• Resolve software defects and implement incremental enhancements within Agile sprint cycles.
• Participate in sprint planning, sprint reviews, backlog refinement, and other Agile ceremonies.
• Create and maintain technical documentation supporting development, configuration, deployment, and operational support.
• Maintain issue tracking and work‑item documentation within Azure Dev Ops and Government‑approved tracking systems.
• Provide regular development status updates and collaborate with the Contracting Officer's Representative (COR), Project Manager, and development team.

• Minimum five (5) years of professional experience developing web‑based applications.
• Minimum five (5) years of experience using:
  • C#
  • Java Script
  • HTML
  • CSS
• Demonstrated experience developing applications using Blazor Server.
• Experience working directly with the browser Document Object Model (DOM).
• Experience implementing JavaScript Interop within Blazor applications.
• Experience translating XML document structures into HTML‑based user interfaces.
• Working knowledge of XML elements, attributes, hierarchical structures, and document semantics.
• Experience with structured XML standards such as DITA, Doc Book, or comparable XML schemas.
• Experience implementing event‑driven UI functionality integrated with backend C# logic.
• Experience using Azure Dev Ops Git for source control, branching, merging, and code reviews.
• Experience resolving UI defects and implementing application enhancements.
• Ability to work independently while collaborating effectively within Agile software development teams.
• Strong analytical, troubleshooting, and problem‑solving skills.
• Strong written and verbal communication skills.

• Experience supporting Federal Government software development projects.
• Experience developing document‑centric authoring or editing platforms.
• Experience…