Senior User Experience Designer (UX)

Leidos has a new and exciting opportunity for a Senior UX Designer in our Intel Sector . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!

Job Summary:

Our LOE program provides our customer's Operations organization with the best possible solutions for their mission needs. We achieve this through rapid prototyping, new development, and advanced technology research. From leading-edge visualizations to analytic development, we're always pushing the boundaries to find new and better data sources and tradecraft to answer intelligence questions. With a focus on collaboration and a fast-paced environment, our prototype development program is the ideal place to grow your skills and make a real impact. Click here to learn more about how this program "Delivers Mission Success!" Seeking a motivated Senior User Experience (UX) Designer to support the exciting Analysis & Mitigations mission with UX design and front-end development for an Agentic Knowledge Management System. The designer will conduct user research to understand user needs, behaviors, and pain points to write and maintain front-end code for implementing UX designs and ensure seamless integration with backend systems. Additionally, develop and maintain UX documentation, including design guidelines, style guides, technical plans and milestones for UX deliverables, and user guides.

Job Responsibilities/Qualifications:

Mission Focus :

Write and maintain front-end code to implement UX designs. Design and conduct user interviews, surveys, and usability tests to identify trends, insights, and opportunities for improvement.

Technical Proficiency :

Develop front-end components using modern web technologies. Collaborate with backend developers to integrate front-end code with existing backend services. Ensure front-end code is optimized for performance, accessibility, and cross-browser compatibility.

Qualifications :

Bachelor's degree plus eight (8) years of relevant experience or equivalent. Understanding of Agile and other constructs. Experience with HTML, CSS, JavaScript, React, and Vue.js.

Security Clearance :

Active TS/SCI with Polygraph required in order to be considered for this role. At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you - apply today! Careers.leidos.com CONMD If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

March 18, 2026 For U.S.

Positions:

While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.