Senior UI/UX Designer

Amentum•Arlington, VA

1d•$140,000 - $210,000•Onsite

About The Position

Amentum is seeking a Senior UI/UX Designer for the Geospatial Enterprise Open Data Store (GEODS) contract, which provides integration, design, development, and sustainment for data services supporting the Federal Government. The designer will lead the strategy, execution, and optimization of digital products across federal web platforms, translating business objectives and complex user needs into scalable, intuitive experiences while considering engineering feasibility. The role owns the end-to-end user experience of the product ecosystem, including design-system evolution, complex user journeys, and high-fidelity interfaces. It works closely with product management, software development, and federal leadership to advance user-centered design and product innovation. The senior designer also mentors junior designers and helps raise design standards. The schedule is day shift, Monday through Friday. The work is performed in an office environment with light physical demands and requires the ability to attend to mental tasks for the duration of the workday. An active TS/SCI clearance is required at start, with the ability to gain and maintain a Poly.

Requirements

At least 4 years of dedicated UI/UX or product design experience in complex software environments.
A portfolio demonstrating end-to-end product design, visual design craft, systematic UI architecture, and data-informed UX decisions.
Expert-level mastery of industry-standard UI/UX tools such as Figma, Sketch, Adobe Creative Cloud, or advanced prototyping tools such as Framer.
Experience with Atlassian tools, specifically Jira and Confluence.
Familiarity with frontend technologies such as HTML, CSS, and JavaScript frameworks, and understanding of layout constraints, component logic, and responsive design in development.
Strong communication, storytelling, and project management skills, with the ability to manage multiple initiatives while maintaining attention to detail.
Active TS/SCI clearance at start and ability to gain and maintain a Poly.
Relevant experience and education meeting one of these combinations: a master's degree plus 2 years of experience; a bachelor's degree plus 4 years; an associate degree plus 6 years; or at least 8 years of experience.

Nice To Haves

Experience in secure or federal environments, or commercial high-growth environments such as B2B SaaS or complex mobile applications.
At least 4 years of demonstrated software-development experience using SAFe or similar Agile methodologies, including working with Scrum Masters and/or Product Owners to break high-level requirements into actionable user stories.
Previous NGA experience.
AI experience, if applicable to the program.

Responsibilities

Own the product design lifecycle, from discovery, user flows, and wireframes through high-fidelity UI design and interactive prototyping.
Maintain and scale a cross-platform design system and create reusable UI component libraries.
Plan and conduct qualitative user research and usability testing, and analyze data to identify pain points and validate design assumptions.
Partner with Product Managers to align features with business KPIs.
Collaborate with Software Developers by providing handoff documentation and performing design QA.
Present design rationale, research findings, and product vision to stakeholders; gather feedback and build organizational support.
Optimize designs for accessibility, including WCAG 2.1 AA and Section 508, as well as localization, edge cases, responsive scaling, and performance.
Mentor junior designers and elevate team design standards.
Meet applicable safety, quality, procedure, and environmental requirements; complete required training and fulfill applicable safety responsibilities.