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JTEC Consulting•Chantilly, VA

1d•Onsite

About The Position

JTEC Consulting LLC is seeking a mid- to senior-level UI/UX Developer to connect human-centered design with front-end engineering. The role shapes digital products’ visual identity and user experience from discovery through deployment. The developer conducts user research, turns customer insights into wireframes and interactive prototypes, and implements those concepts with modern web technologies including React, Next.js, and TypeScript. Working with Product Managers and Engineering teams, the role promotes design consistency, accessibility, and intuitive interactions across the product ecosystem. The position requires U.S. citizenship and a current TS/SCI clearance with an agency-specific polygraph. It is 100% on-site in Chantilly, Virginia; relocation support for candidates outside the commuting area may be considered.

Requirements

U.S. citizenship.
Current TS/SCI clearance with an agency-specific polygraph.
Bachelor’s degree in Computer Science, Information Systems, or a related technical discipline; equivalent years of direct experience may be considered in lieu of a degree.
At least 5 years of related experience for mid-level consideration, or at least 8 years for senior-level consideration.
Effective written and verbal communication skills for collaborative, cross-functional work.
Strong proficiency in JavaScript (ES6+), TypeScript, HTML5, and modern CSS3/SCSS.
Hands-on experience building web applications with React and Next.js.
Understanding of visual design principles, including grid systems, responsive layouts, typography, and color theory.
Experience conducting user research, developing user flows, and wireframing interface solutions.
Experience creating reusable, component-based architectures that balance visual fidelity and code performance.
Hands-on experience demonstrating both design execution, such as case studies, wireframes, or prototypes, and functional front-end code.

Nice To Haves

Advanced proficiency with design tools such as Figma, Sketch, or Adobe XD.
Understanding of WCAG 2.1/2.2, semantic HTML, and ARIA attributes.
Experience creating, documenting, and maintaining design tokens and enterprise design systems, such as Storybook.
Familiarity with micro-interactions, transitions, and web animation libraries such as Framer Motion or CSS animations.
Experience working in iterative Agile/Scrum environments alongside cross-functional squads.

Responsibilities

Conduct user research, contextual inquiries, and usability testing to identify customer needs, pain points, and behavioral patterns.
Synthesize research into user journeys, personas, site maps, and user flows.
Create low- to high-fidelity wireframes and interactive prototypes to test concepts and validate product hypotheses.
Build, maintain, and optimize responsive web applications using React, Next.js, TypeScript, and modern CSS architectures.
Translate design tokens and component libraries into clean, modular, maintainable front-end code.
Ensure cross-browser compatibility, performance, and consistent behavior across mobile, tablet, and desktop viewports.
Apply color theory, typography, spacing, and grid systems to create cohesive user interfaces.
Collaborate with engineering and product teams to establish and evolve scalable design systems and reusable UI component libraries.
Promote accessibility best practices and inclusive interfaces.
Partner with Product Managers to define technical and design requirements in an Agile/Scrum environment.
Work with back-end engineers to integrate RESTful APIs and ensure seamless front-end state management.
Participate in design critiques and code reviews, providing constructive feedback to maintain quality across design and engineering.