Sr. Front End Developer II

Description:
Onsite in Washington, DC

The organization seeks a Sr. Front End Developer II to lead UI and UX modernization for mission-critical federal applications. The role focuses on secure, high-performance front-end development using Angular or React while contributing to full-stack efforts in a no-fail environment. You will translate operational requirements into intuitive interfaces, modernize legacy systems, and collaborate across security and platform engineering to improve performance, scalability, and maintainability.

This is a full-time, permanent opportunity, offering a competitive salary and comprehensive benefits package. Qualified applicants must be willing and able to work on a w2 basis.

Salary: $175,000 - $230,000/ yr. w2

Responsibilities:

• Lead design and implementation of modern, responsive, high-performance user interfaces using Angular and/or React.
• Translate mission and operational requirements into intuitive, accessible UI/UX solutions.
• Modernize legacy web applications to current front-end frameworks.
• Troubleshoot and remediate production issues in a mission-critical environment.
• Collaborate with security, infrastructure, and platform engineering teams.
• Contribute to architectural decisions impacting performance, scalability, and maintainability.

Experience Requirements:

• Active Top Secret with current or previously held SCI access.
• 8+ years of professional software development experience building, testing, and maintaining enterprise applications in mission-critical environments.
• Expertise with modern front-end development including TypeScript, JavaScript, HTML, CSS, Node.js, and Angular and/or React.
• Strong understanding of modern UI/UX web design principles for performance and responsiveness.
• Familiarity with C#, .NET, .NET Framework, and ASP.NET including WebForms, MVC, and REST APIs.
• Familiarity with back-end database development and administration such as SQL Server and T-SQL.
• Familiarity with source code management tools like Azure DevOps, GitLab, or GitHub, CI/CD pipelines, and containerization using Docker.
• Ability to contribute immediately with minimal ramp-up in a dynamic, mission-critical environment.

Education Requirements:

• Bachelor's degree in Computer Science or Software Engineering preferred.
• DoD 8140-compliant certification such as Security+ or higher.
• Azure Developer Associate certification, AWS Developer Associate certification, or recent and relevant software development certification.