UI-UX Designer

Vantor•McLean, VA

8d•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. This role is responsible for end-to-end UX and UI design, from user research and analysis through interaction design, prototyping, and delivery. The ideal candidate brings a strong balance of research-driven UX practice and high-quality visual/UI design and is comfortable operating within the constraints of government environments. This role works closely with product managers, engineers, and stakeholders to ensure designs are grounded in real user needs, validated through research, and translated into intuitive, accessible interfaces. This position requires an active U.S. Government Security Clearance at the TS/SCI level with required polygraph. To be eligible for this position, you must be a U.S. Citizen. This position requires an active U.S. Government security clearance, applicants who do not currently hold the required clearance will not be eligible for consideration. Employment for cleared roles is contingent upon verification of clearance status. Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3).

Requirements

Bachelor’s degree in Design, Human-Computer Interaction, Psychology, Computer Science, or a related field (or equivalent experience).
Minimum of 5 years of professional experience in UI/UX design.
Demonstrated experience conducting UX research, analysis, and synthesis (not UI-only).
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.
Willingness to work onsite full time in McLean, VA.
U.S. Citizen
Active U.S. Government Security Clearance at the TS/SCI level with required polygraph.

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 accessibility standards (WCAG) and inclusive design practices.
Experience contributing to or managing design systems.
Familiarity with modern front-end frameworks and design constraints (e.g., component-based development).
Experience supporting data-heavy or analytical user workflows.

Responsibilities

Plan and conduct user research activities including interviews, usability testing, and feedback sessions with diverse user groups (e.g., analysts, SMEs, managers, data scientists).
Analyze and synthesize research findings 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 tools such as Figma, Adobe XD, or similar, 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 (e.g., WCAG) and applicable government design guidelines.
Document interaction behaviors, design rationale, and micro-copy to support implementation.