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Principal User Interface User Experience Designer Jobs

SOSi

UI/UX Designer

Washington, DC · On-site

The UI/UX Designer will provide user interface/user experience to design, research, and development plans in support of the Sponsor's applications. The Designer will leverage expertise in UI/UX ...

The GEO Group

UI/UX DESIGNER

Boulder, CO · On-site

$90K/yr

Proven work experience as a UI/UX Designer or similar role. * US citizenship required. * Ability to receive client's approval to work on contract required. * Must live in the US 3 of the last 5 years ...

C2 Technologies, Inc.

UI/UX Designer

Arlington, VA · On-site

$50K - $100K/yr

UI/UX Designer C² Technologies seeks a UI/UX Designer to collaborate with instructional designers, web developers, and content editors to design responsive user interfaces for web-based training ...

Cintrifuse

UI/UX Designer

Cincinnati, OH · On-site

Description We are looking for creative and experienced UI/UX designer with experience with sophisticated dashboard designs, modular UI components, and mobile experience. Responsibilities * Unify the ...

Logic20/20

UI/UX Designer

Seattle, WA · On-site

The UI/UX Designer is responsible for delivering client value and ensuring high client satisfaction. The designer is expected to be adept at recognizing, subscribing and applying best practices ...

C2 Technologies

UI/UX Designer

Arlington, VA · On-site

$50K - $100K/yr

UI/UX Designer C² Technologies seeks a UI/UX Designer to collaborate with instructional designers, web developers, and content editors to design responsive user interfaces for web-based training ...

Logic20/20

UI/UX Designer

Seattle, WA · On-site

The UI/UX Designer is responsible for delivering client value and ensuring high client satisfaction. The designer is expected to be adept at recognizing, subscribing and applying best practices ...

Princeton IT Services

UI/UX Designer

Princeton, NJ · On-site

Job Title: UI/UX Designer Location: Princeton, NJ (NJ/NY locals preferred) Employment Type: 3-Month Contract Job Summary: We are seeking a passionate and detail-oriented UI/UX Designer to join our ...

YO AI Labs

UI/UX Designer

Los Angeles, CA · Remote

$30 - $80/hr

Designer Role Type: Contractor Location: Remote (US-Based) Job Overview We are seeking experienced Graphic and UI/UX Designers to contribute to a project focused on improving visual design and user ...

YO AI Labs

UI/UX Designer

Houston, TX · Remote

$30 - $80/hr

Designer Role Type: Contractor Location: Remote (US-Based) Job Overview We are seeking experienced Graphic and UI/UX Designers to contribute to a project focused on improving visual design and user ...

SOSi

UI/UX Designer

Washington, DC · On-site

The UI/UX Designer will provide user interface/user experience to design, research, and development plans in support of the Sponsor's applications. The Contractor shall leverage expertise in UI/UX ...

Mondo

UI/UX Designer

Centreville, VA · Remote

$35 - $45/hr

Apply now: UI/UX Designer, location is Remote. The start date is August 12 for this 5-month contract-to-hire position. Job Title: UI/UX Designer Location-Type: Remote Start Date Is: August 12 ...

The GEO Group Australia Pty Ltd.

Proven work experience as a UI/UX Designer or similar role. * US citizenship required. * Ability to receive client's approval to work on contract required. * Must live in the US 3 of the last 5 years ...

Logic20/20

UI/UX Designer

Seattle, WA · On-site

The UI/UX Designer is responsible for delivering client value and ensuring high client satisfaction. The designer is expected to be adept at recognizing, subscribing and applying best practices ...

Iru

Principal UI/UX Designer

Miami, FL · Hybrid

... designer who sweats ascenders, descenders and x-height of any typeface we'd use for UI. How You'll ... Collaborate with the UX team to translate product needs into a "kick ass" experience. * Contribute ...

YO AI Labs

UI/UX Designer

Palo Alto, CA · Remote

$30 - $80/hr

Designer Role Type: Contractor Location: Remote (US-Based) Job Overview We are seeking experienced Graphic and UI/UX Designers to contribute to a project focused on improving visual design and user ...

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How much do principal user interface user experience designer jobs pay per hour?

As of Sep 11, 2026, the average hourly pay for principal user interface user experience designer in the United States is $53.94, according to ZipRecruiter salary data. Most workers in this role earn between $41.35 and $64.90 per hour, depending on experience, location, and employer.

Are principal user interface user experience designers still in demand?

Principal user interface and user experience designers are in strong demand due to the increasing importance of digital product design across industries. They are often required to have advanced skills in design tools, user research, and leadership to guide teams and improve user satisfaction in competitive markets.

Is principal user interface user experience design a high paying job?

Principal user interface and user experience designers typically earn high salaries due to their advanced skills, leadership responsibilities, and expertise in design tools and user research. Compensation varies by industry and location but generally exceeds average design roles, reflecting their seniority and impact on product success.

What does a principal user interface user experience designer do?

A principal user interface user experience designer leads the design and development of digital products' interfaces, ensuring they are user-friendly, accessible, and aligned with user needs. They oversee design teams, create wireframes and prototypes, and collaborate with developers and stakeholders to improve overall user experience using tools like Sketch or Figma.

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Principal User Interface User Experience Designer jobs near you

UI/UX Designer

Washington, DC • On-site

SOSi
See more jobs at SOSiexternal

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

Company Description

Founded in 1989 and headquartered in Reston, Virginia, SOSi is a private defense and government solutions business specializing in advanced technology systems and mission support. Its capabilities include data science, software development, network engineering, intelligence, surveillance, and reconnaissance (ISR), and logistics.

Job Description

*Position is contingent upon contract award*

SOSi is seeking a UI/UX Designer. The UI/UX Designer will provide user interface/user experience to design, research, and development plans in support of the Sponsor's applications. The Designer will leverage expertise in UI/UX design principles, human-centered design, and user research to create intuitive and user-friendly digital experiences.

Essential Job Duties

  • Conduct user research to understand user needs and behaviors, including interviews, surveys, and usability testing.
  • Create user personas, user flows, and wireframes to inform design decisions.
  • Developing and conceptualizing a comprehensive UI/UX design strategy for Sponsor's digital assets.
  • Design UI elements such as navigation menus, search boxes, and CTAs, to enhance user experience.
  • Create high-fidelity prototypes and testing designs to validate user experience.
  • Collaborate with development teams, stakeholders, and Sponsor's representatives to ensure design requirements are being met.
  • Provide guidance on the implementation of UX research methodologies and testing activities.
  • Maintain a competitive edge by staying up to date with industry trends and emerging technologies.
Qualifications
  • Active TS/SCI w/ Poly. 
  • Demonstrated professional experience with the following tools, systems, services, and data types:
    • User research methodologies, including user interviews, surveys, and usability testing, to inform design decisions and validate user experience.
    • Proficiency in UI/UX design tools, such as Sketch, InVision, and Adobe Creative Suite, to create high-quality design solutions.
    • Experience with wireframing and prototyping tools, such as Figma and Axure, to develop and test design concepts.
    • Strong understanding of human-centered design principles and design thinking to create intuitive and user-friendly digital experiences.
    • Knowledge of HTML, CSS, and JavaScript fundamentals to effectively communicate design requirements to development teams.
    • Experience with design systems and style guides to ensure consistency and coherence across Sponsor's digital assets.

Preferred Qualifications

  • Experience with mobile and web application design, including responsive design principles and mobile-specific design considerations.
  • Familiarity with Sponsor's existing design systems and brand guidelines to ensure alignment with Sponsor's overall visual identity.
  • Knowledge of emerging trends and technologies in UI/UX design, such as AR/VR and voice UI, to stay ahead of the curve and identity new opportunities.
  • Experience with usability testing and user feedback analysis to inform design decisions and iterate on design solutions.
Additional Information

Working Conditions

  • Working conditions are normal for an office environment.

Working at SOSi

All interested individuals will receive consideration and will not be discriminated against for any reason.

Apply