Senior UI/UX Web Developer

System OneUnited States🇺🇸United StatesPosted Oct 22, 2026

Quick Overview

Seniority

Mid Senior

Work mode

Remote

Location

United States

Posted

22 hours ago

GitHTMLFigmaSketchAdobe XDAngularCSSVueReactJavaScript

Job Description

Job Title: Senior UI/UX Web Developer
Role Type: Direct Perm / Full Time Salaried
Location: Remote, with occasional travel to Fort Belvoir, VA
Clearance Requirement: Active Secret Clearance
Position Overview
We are seeking a talented Senior UI/UX Web Developer to design, develop, and optimize user-centered websites and web applications that combine intuitive design, accessibility, and high-performance functionality. This role requires a strong blend of UI/UX design expertise and front-end development skills to deliver engaging, responsive, and accessible digital experiences.
The ideal candidate has a solid understanding of user-centered design principles, proficiency in industry-standard design tools, and hands-on experience developing modern web applications using HTML5, CSS3, JavaScript, and contemporary JavaScript frameworks. You will collaborate with cross-functional teams to translate user needs and business requirements into effective design solutions and production-ready code.
This position is primarily remote, with occasional visits to Fort Belvoir, Virginia. Candidates must possess an active Secret security clearance and CompTIA Security+ certification or an equivalent qualification.
Key Responsibilities

UI/UX Design: Develop wireframes, user flows, storyboards, mockups, and interactive prototypes to communicate and validate user experiences.
Front-End Development: Translate design concepts into clean, maintainable, production-ready code using HTML5, CSS3, JavaScript, and related technologies.
User Research and Testing: Conduct user research, develop user personas, perform usability testing, and refine interfaces based on user feedback and findings.
Responsive Design and Accessibility: Build responsive, accessible web interfaces optimized for performance across devices and browsers, ensuring compliance with applicable accessibility standards, including WCAG.
Modern Web Frameworks: Develop and maintain front-end applications using frameworks such as React, Vue.js, or Angular.
Design Tools: Create and maintain high-fidelity design assets using Adobe Creative Suite and tools such as Figma, Sketch, or Adobe XD.
Cross-Functional Collaboration: Work closely with product managers, backend engineers, and other stakeholders to align design and development efforts with user needs and project objectives.
Version Control and Code Management: Use Git-based version control systems, preferably GitLab, to manage source code, track changes, and support collaborative development.
Problem-Solving and Optimization: Identify usability challenges, troubleshoot front-end issues, and continuously improve the functionality, accessibility, and overall quality of digital products.

Required Qualifications

U.S. citizenship. Dual citizens may be considered, subject to applicable security clearance requirements.
Active Secret security clearance required.
CompTIA Security+ certification or an equivalent certification.
Strong proficiency in HTML5, CSS3, JavaScript, and front-end web development.

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Ref: #851-Rockville-S1