Senior UI/UX Designer

Amentum; United States; Remote; USD 140,000 - 210,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off and holidays

401(k) matching

Educational reimbursement

Parental leave

Employee stock purchase plan

Disability and life insurance

Pet insurance

Job summary

Amentum is seeking a Senior UI/UX Designer to shape digital product experiences across federal platforms. You will own design strategy, scale a design system, and collaborate with Product Managers and Developers to ensure high-quality implementation.

This remote role offers a salary of USD 140,000 - 210,000 per year, with a day shift Monday–Friday focus on user-centered design, accessibility, and standards compliance.

Qualifications

• 4+ years of dedicated UI/UX or product design in complex software environments.
• Portfolio showing end-to-end product design, visual craft, and data-informed UX decisions.
• Experience with Figma, Sketch, Adobe CC, and Framer for high-fidelity UI.
• Proficiency with Jira and Confluence; familiarity with frontend basics (HTML, CSS, JS).
• Strong communication, storytelling, and project management skills.

Responsibilities

• Lead full product design lifecycle from discovery to wireframes and high-fidelity UI.
• Scale a cross-platform design system with reusable UI components.
• Plan qualitative research, usability testing, and data-informed validation.
• Collaborate with Product Managers and Developers for alignment and handoff.
• Present design logic and outcomes to stakeholders for buy-in.
• Ensure accessibility to WCAG 2.1 AA and Section 508 compliance.
• Advance design system evolution and map complex user journeys.
• Mentor junior designers and uphold design standards.
• Support safety culture and comply with quality and customer requirements.

Skills

UI/UX design experience

Strong storytelling & communication

Project management

Education

Master’s or Bachelor’s or 8 years experience in related field

Tools

Figma

Sketch

Adobe Creative Cloud

Framer

Jira

Confluence

HTML

CSS

JavaScript

Job description

Amentum is seeking a Senior UI/UX Designer to help shape and improve digital product experiences across federal web platforms. In this role, you will own end-to-end design strategy and delivery, advancing a scalable design system while partnering with Product Managers and Software Developers to ensure high-quality implementation.

This position is remote and includes a salary range of USD 140,000 - 210,000 per year. The work cadence is day shift, Monday through Friday, with an emphasis on user-centered design, accessibility, and continuous design standards.

What you’ll do

• Lead the full product design lifecycle, progressing from discovery through user flows and wireframing to high-fidelity UI design and interactive prototyping.
• Maintain and scale a cross-platform design system, including building reusable UI component libraries that support frontend development.
• Plan and run qualitative user research, usability testing, and data analysis to identify pain points and validate design assumptions.
• Collaborate with Product Managers to align features with business KPIs and work with Software Developers for precise handoff documentation and design QA.
• Present design logic, research outcomes, and product vision to stakeholders to collect feedback and secure organizational buy-in.
• Optimize interfaces for digital accessibility, including WCAG 2.1 AA and Section 508, while addressing localization, edge cases, responsive scaling, and performance.
• Guide the evolution of the design system, map complex user journeys, and create high-fidelity interfaces that function seamlessly.
• Partner daily with product management, software developers, and federal leadership to reinforce user-centered design practices and drive product innovation.
• Mentor junior designers and raise collective design standards.
• Support a safety culture by completing required training, fulfilling self-aid and buddy-aid responsibilities, participating in emergency response tasks, and serving on safety committees and teams.
• Conform to the Amentum Quality Policy and comply with applicable quality system documents and customer contracts, including Quality Management and Customer Satisfaction responsibilities.
• Review, understand, and implement operational, safety, quality, and environmental requirements related to job plans, procedures, and policies.

Required experience and qualifications

• 4 years of dedicated UI/UX or product design experience in complex software environments, preferably secure or federal or commercial high-growth contexts (such as B2B SaaS or complex mobile apps).
• A strong portfolio showing end-to-end product design, visual design craft, systematic UI architecture, and examples of data-informed UX decisions.
• Expert command of industry-standard tools such as Figma, Sketch, Adobe Creative Cloud, and advanced prototyping tools like Framer.
• Experience with the Atlassian suite, specifically Jira and Confluence.
• Familiarity with frontend technologies including HTML, CSS, and JavaScript, with understanding of how layout constraints, component logic, and responsive design translate into development.
• Strong communication, narrative storytelling, and project management skills, with the ability to manage multiple initiatives while maintaining pixel-level attention to detail.

Tools and technologies

• Figma, Sketch, Adobe Creative Cloud, Framer
• Atlassian suite, Jira, Confluence
• HTML, CSS, JavaScript
• WCAG 2.1 AA, Section 508
• SAFe

Education and security clearance

• Minimum education: Master’s degree plus 2 years experience; or Bachelor’s degree plus 4 years experience; or Associates degree plus 6 years experience; or a minimum of 8 years experience in a relevant field.
• Security clearance required: Active TS/SCI to start, with ability to gain and maintain a Poly.

Preferred qualifications

• If applicable to your program: AI experience.
• At least 4 years of demonstrated experience using SAFe or similar Agile methodologies, including working with Scrum Masters and/or Product Owners to decompose high-level requirements into actionable user stories.
• Previous NGA experience.

Compensation and benefits

• Health, dental, and vision insurance
• Paid time off and holidays
• Retirement benefits, including 401(k) matching
• Educational reimbursement
• Parental leave
• Employee stock purchase plan
• Tax-saving options
• Disability and life insurance
• Pet insurance

Work environment

• Office environment
• Light physical demands
• Ability to attend to mental tasks for the duration of the workday