Senior UI/UX Designer — United States

About The Company

Amentum supports the Geospatial Enterprise Open Data Store (GEODS) contract, providing integration, design, development, and sustainment for data services in support of the Federal Government. Our teams help deliver dependable digital capabilities for complex government missions. At Amentum, employees contribute their expertise in an environment where safety, quality, customer satisfaction, and compliance are central to the work.

About The Role

Amentum is seeking a Senior UI/UX Designer to lead the strategy, design, and optimization of digital products across federal web platforms. You will connect business objectives, user needs, and engineering considerations to shape intuitive, accessible, and scalable experiences. This is a hands-on position with strategic influence: you will guide product design from early discovery through implementation, help evolve the design system, and use research and evidence to inform decisions.

You will work closely with product managers, software developers, federal leadership, and other stakeholders. As a senior team member, you will communicate design rationale, support shared design standards, and mentor less experienced designers. The schedule is day shift, Monday through Friday. The position is based in an office environment with light physical demands and requires the ability to focus on mental tasks throughout the workday.

Qualifications

Applicants should have at least four years of dedicated UI/UX or product design experience in complex software environments. Relevant experience may come from secure or federal settings, B2B SaaS, or complex mobile applications. A portfolio is required and should demonstrate end-to-end product design, strong visual craft, systematic interface architecture, and data-informed design decisions.

Expertise with industry-standard design tools such as Figma, Sketch, Adobe Creative Cloud, or advanced prototyping tools is expected, along with experience using Atlassian tools, particularly Jira and Confluence. Candidates should understand frontend technologies, including HTML, CSS, and JavaScript frameworks, and be familiar with responsive layouts and component-based development. Strong communication, storytelling, project management, and attention to detail are essential.

Education and experience requirements may be met through a master’s degree plus two years of relevant experience, a bachelor’s degree plus four years, an associate degree plus six years, or at least eight years of relevant experience. An active TS/SCI clearance is required at the start of employment, with the ability to obtain and maintain a Poly. Fv experience may be relevant where applicable to the program.

Responsibilities

Lead the full product design lifecycle, including discovery, user flows, wireframes, high-fidelity interfaces, and interactive prototypes. Maintain and expand a cross-platform design system, developing reusable components that support consistent experiences and efficient frontend implementation.

Plan and conduct qualitative research, usability testing, and data analysis to identify user needs, uncover friction, and validate design decisions. Partner with product managers to align features with business objectives and key performance indicators. Collaborate with developers through implementation, providing clear handoff documentation and conducting design quality reviews.

Present design concepts, research findings, and product direction to stakeholders, gathering feedback and building support for user-centered solutions. Address accessibility requirements, including WCAG 2.1 AA and Section 508, as well as localization, responsive behavior, edge cases, and performance. Follow applicable operational, safety, quality, and environmental procedures and contribute to Amentum’s safety and quality culture.

Benefits

The estimated compensation range is $140,000–$210,000. Actual compensation may vary based on responsibilities, education, experience, skills, internal equity, market data, applicable agreements, and relevant laws. Benefits are designed to support employees and their priorities and may include health, dental, and vision insurance; paid time off and holidays; 401(k) matching; educational reimbursement; parental leave; an employee stock purchase plan; tax-saving options; disability and life insurance; and pet insurance. Offerings may vary by employment type, location, and applicable agreements. The requisition is expected to remain open for at least three days, with a closing date no earlier than three days after posting; timing may change based on business needs.

Equal Opportunity

Amentum is proud to be an Equal Opportunity Employer. Qualified applicants receive consideration without regard to race, sex, sexual orientation, pregnancy, age, ancestry, military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship, low-income status, disability, or any other protected category under applicable law. Reasonable accommodations are available so qualified individuals can perform the essential functions of the job.