UI-UX Designer

Vantor•McLean, VA

1d•$150,000 - $200,000•Onsite

About The Position

Vantor is seeking an experienced UI/UX Designer to lead human-centered design efforts for mission-critical applications supporting government users. The role covers end-to-end UX and UI design, from user research and analysis through interaction design, prototyping, and delivery. The designer will balance research-driven UX practice with high-quality visual and UI design while working within government-environment constraints. The position works closely with product managers, engineers, and stakeholders to ensure designs reflect user needs, are validated through research, and result in intuitive, accessible interfaces. It requires an active U.S. Government TS/SCI security clearance with required polygraph, U.S. citizenship, and full-time onsite work in McLean, Virginia.

Requirements

Bachelor’s degree in Design, Human-Computer Interaction, Psychology, Computer Science, or a related field, or equivalent experience.
At least 5 years of professional experience in UI/UX design.
Demonstrated experience conducting UX research, analysis, and synthesis; experience must extend beyond UI-only work.
Strong proficiency with design and prototyping tools such as Figma, Adobe XD, or equivalent.
Experience collaborating closely with product managers and engineering teams.
Ability to clearly articulate design decisions and research findings to stakeholders.
U.S. citizenship.
Active U.S. Government TS/SCI security clearance with required polygraph.
Willingness to work full time onsite in McLean, Virginia.

Nice To Haves

Portfolio, website, case studies, or work samples demonstrating UX research methodology, analysis, and UI design quality.
Experience designing for mission-critical or government systems.
Familiarity with WCAG accessibility standards and inclusive design practices.
Experience contributing to or managing design systems.
Familiarity with modern front-end frameworks and design constraints, such as component-based development.
Experience supporting data-heavy or analytical user workflows.

Responsibilities

Plan and conduct user research, including interviews, usability testing, and feedback sessions with user groups such as analysts, subject-matter experts, managers, and data scientists.
Analyze and synthesize research into actionable insights, personas, user journeys, and workflow maps.
Document research findings and recommendations to support stakeholder understanding and buy-in, particularly in government settings.
Apply ethical, secure, and compliant research practices appropriate for classified or sensitive environments.
Lead UX and UI efforts.
Define, maintain, and evolve design systems and component libraries in collaboration with engineering teams.
Establish consistent interaction patterns, workflows, and design standards across multiple applications.
Create service blueprints and end-to-end experience maps to align cross-functional teams.
Develop interactive prototypes using Figma, Adobe XD, or similar tools to explore concepts and validate user flows.
Produce high-fidelity UI designs that are accessible, usable, and visually consistent.
Ensure designs align with accessibility standards such as WCAG and applicable government design guidelines.
Document interaction behaviors, design rationale, and micro-copy to support implementation.