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Weekend User Interface Tester Jobs in Washington, DC

Closure Technologies

UI/UX Engineer

Mclean, VA · On-site

$95K - $118K/yr

Plan and conduct user research activities including interviews, usability testing, and feedback ... Lead UX and UI efforts for complex, high-visibility applications. * Define, maintain, and evolve ...

Interon IT Solutions

Senior UI engineer

Rockville, MD · On-site

$132K - $165K/yr

Senior UI Engineer Location-Rockville,MD or Mclean,VA Focus: Front End Overview Our client is ... Experience with Playwright testing framework for end-to-end testing and test automation.

6k Systems

UI/UX Developer

Washington, DC · On-site

Conduct user testing of applications, software, and websites * Create and implement interaction models and user interface specifications * Create, improve and use wireframes, prototypes, style guides ...

Redhorse Corporation

UI Developer

Chantilly, VA · On-site

$150K - $200K/yr

Experience with testing frameworks and methodologies for UI development. * Experience with responsive design and cross-browser compatibility. * Experience working with RESTful APIs and backend ...

Steampunk

UI/UX Designer

Mclean, VA · On-site

As a UI/UX Designer, you will be responsible for guiding government clients through our Design ... Conduct user research and testing and effectively translate user needs into an implementable ...

Redhorse Corporation

UI Developer

Chantilly, VA · On-site

$150K - $200K/yr

Experience with testing frameworks and methodologies for UI development. * Experience with responsive design and cross-browser compatibility. * Experience working with RESTful APIs and backend ...

LCG Inc

UI / UX Developer, Associate

Rockville, MD · On-site

Conduct usability testing and support User Acceptance Testing (UAT) activities * Maintain UI/UX documentation, design standards, and style guides * Develop user-facing documentation and visual ...

Redhorse Corporation

UI Developer

Chantilly, VA

$150K - $200K/yr

Experience with testing frameworks and methodologies for UI development. * Experience with responsive design and cross-browser compatibility. * Experience working with RESTful APIs and backend ...

CaseGuard

UI/UX Designer

Arlington, VA · On-site

Own the design process from research through conceptual design, UX design, testing, and prototyping ... Requirements: * Proven UX/UI experience. * 2+ years of visual design experience. * 2+ years of ...

CaseGuard

UI/UX Designer

Arlington, VA · On-site +1

Own the design process from research through conceptual design, UX design, testing, and prototyping ... Requirements: * Proven UX/UI experience. * 2+ years of visual design experience. * 2+ years of ...

ARES Enterprise

UI/UX Designer

Fairfax, VA · On-site

We are seeking a mission-focused UI/UX Designer to support a United States Department of Defense ... Security testing * Section 508 compliance testing * Supplement automated testing with manual ...

Prysm Technology

UX/UI Designer

Herndon, VA · On-site

... testing, and feedback sessions with diverse user groups (e.g., analysts, SMEs, managers, data ... I efforts for complex, high-visibility applications.  Define, maintain, and evolve design ...

Prysm Technology

UX/UI Designer

Herndon, VA · On-site

... testing, and feedback sessions with diverse user groups (e.g., analysts, SMEs, managers, data ... and UI efforts for complex, high-visibility applications. - Define, maintain, and evolve design ...

ECS

UI/UX Designer

Arlington, VA · On-site

$100K - $120K/yr

ECS is seeking a UX / UI Web Designer to design the UI architecture, interface, and interaction ... Participates in testing, validating own and others' functionality * Modernize and improve existing ...

Steampunk

UX/UI Designer

Mclean, VA · On-site

Contributions As a UX/UI Designer , you will be responsible for guiding government clients through ... Conduct user research and testing and effectively translate user needs into an implementable ...

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How much do weekend user interface tester jobs pay per hour?

As of Aug 9, 2026, the average hourly pay for weekend user interface tester in Washington, DC is $50.06, according to ZipRecruiter salary data. Most workers in this role earn between $38.37 and $60.96 per hour, depending on experience, location, and employer.
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Weekend User Interface Tester jobs near you

UI/UX Engineer

Closure Technologies

Mclean, VA • On-site

$95K - $118K/yr

Full-time

Re-posted 22 days ago

Job description

Closure Technologies is seeking a UI/UX Engineer in McLean, VA who will conduct user research, lead UX strategy and design system development, and produce accessible, high-fidelity UI designs and prototypes for complex, high-visibility applications.

Clearance Requirement: TS/SCI with Polygraph

Key Responsibilities:

  • User Research & Analysis
    • 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.
  • UX Strategy & Design Systems
    • Lead UX and UI efforts for complex, high-visibility applications.
    • 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
  • UI Design & Prototyping
    • 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

Required Qualifications:

  • Active U.S. Government Security Clearance at the TS/SCI level with required polygraph.
  • Bachelor's degree in Design, Human-Computer Interaction, Psychology, Computer Science, or a related field (or equivalent experience).
  • Minimum 8 years of experience with a Bachelor's degree; or 7 years of experience with a Masters degree; or 6 years of experience with a Doctorate
  • 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.