Design Jobs in Englewood, CO

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Senior UI/UX Engineer

Leidos Englewood, CO

Englewood, CO

Today

$108k - $195k/yr Full time Senior Angular Collaboration

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Job Description

Leidos is looking for a Senior UI/UX Engineer to support the Chinook Program for an Intelligence Community customer in Englewood, CO. In this onsite role, you will design and engineer modern, responsive, accessible interfaces for mission-critical applications within a collaborative Agile environment.

What you’ll do

Lead the design and engineering of modern, intuitive, and responsive user interfaces for mission-critical applications.
Translate user needs, mission workflows, and functional requirements into effective UI/IX solutions.
Collaborate across product ownership, UX/UI design, software engineering, systems engineering, and mission stakeholders throughout the development lifecycle.
Develop reusable UI components, patterns, and design standards to improve consistency and maintainability across the program.
Apply user-centered design principles to simplify complex workflows and improve usability.
Build and refine interactive prototypes and proof-of-concept interfaces to validate concepts with stakeholders.
Partner with software engineering teams to ensure designs are implemented accurately, efficiently, and with appropriate performance considerations.
Evaluate existing interfaces and identify opportunities to improve usability, accessibility, responsiveness, and overall user experience.
Participate in Agile ceremonies including PI Planning, backlog refinement, sprint planning, demonstrations, and retrospectives.
Contribute to technical discussions and help establish UI/IX engineering best practices, standards, and patterns.
Collaborate with test engineers to ensure UI functionality and user workflows are thoroughly validated.
Provide technical mentorship and guidance to less-experienced engineers.
Help drive continuous improvement of the program’s UI/IX capabilities and development processes.

Required qualifications

US citizenship is required per contract.
Master’s degree (or Bachelor’s in Computer Science, Software Engineering, or a related field) and relevant experience: 8-12 years with a Bachelor’s, or 6-10 years with a Master’s.
Active Top Secret/SCI clearance with the ability to successfully pass a Polygraph examination.
Strong professional experience developing modern web-based user interfaces and user experiences.
Proficiency with HTML, CSS, JavaScript/TypeScript, and Python.
Experience with modern UI frameworks such as React, Angular, Vue.js, or Django.
Demonstrated understanding of responsive design, component-based development, and modern front-end engineering practices.
Experience translating complex requirements and user workflows into intuitive interface solutions.
Experience working in an Agile/Scrum or SAFe environment.
Strong communication and collaboration skills across technical and non-technical teams.
Strong analytical and problem-solving skills working through complex technical and user-experience challenges.
Experience with CI/CD tools (GitLab CI, Jenkins) and agile collaboration tools (JIRA, Confluence).
Familiarity with AWS (C2S or GovCloud) and container technologies (Docker, Kubernetes).
Understanding of secure coding practices and government system accreditation processes (for example, RMF, STIGs).

Technologies

HTML, CSS, JavaScript, TypeScript, Python
React, Angular, Vue.js, Django
GitLab CI, Jenkins, JIRA, Confluence
AWS (C2S or GovCloud), Docker, Kubernetes
RMF, STIGs, CI/CD
Agile/Scrum, SAFe, Polygraph, Top Secret/SCI

Preferred qualifications

Experience supporting Intelligence Community, DoD, or other mission-focused government programs.
Experience with complex data visualization, geospatial information, intelligence workflows, or mission systems.
Experience with React and TypeScript and modern front-end development tooling.
Experience developing or consuming RESTful APIs and integrating UI applications with backend services.
Experience with design systems, reusable component libraries, and UI standards.
Familiarity with Figma, Adobe XD, Sketch, or similar UX/UI design tools.
Experience with accessibility standards such as Section 508/WCAG.
Experience developing dashboards, data visualization, maps, or highly interactive mission interfaces.
Experience working within a cloud-based environment, particularly AWS.
Experience with automated UI testing tools such as Playwright, Cypress, Selenium, or equivalent.
Experience mentoring engineers and providing technical leadership within a multidisciplinary Agile team.

Clearance

Active Top Secret/SCI with the ability to successfully pass a Polygraph examination.

Compensation and benefits

Pay Range: $107,900.00 - $195,050.00 (annual).

Health and Wellness programs
Income Protection
Paid Leave
Retirement

Location: Englewood, CO (onsite). Original posting date: August 21, 2026.

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