Senior UI/UX Engineer

Join Us in Shaping the Future of Mission-Critical User Experiences Ready to turn complex mission requirements into intuitive, high-impact user experiences? Join Leidos on the Chinook Program, supporting an Intelligence Community customer, and help design and deliver modern user interfaces that enable mission users to interact with sophisticated systems and data more effectively. As a Sr. UI/IX Engineer, you will play a critical role at the intersection of user experience, interface engineering, design, and mission needs. You’ll work alongside talented software engineers, systems engineers, product owners, testers, and mission stakeholders to transform challenging operational requirements into responsive, intuitive, accessible, and technically sound experiences. This is an opportunity to have a direct impact on an important national security mission while working in a collaborative Agile environment where your ideas, technical expertise, and attention to the user experience will matter. Our Ideal Candidate We're looking for someone who is more than a front-end developer. You are passionate about how technology feels and functions for the person using it. You naturally ask,  "Can we make this simpler?"  You enjoy taking complicated requirements and turning them into experiences that are intuitive, efficient, and elegant. You can speak the language of both designers and engineers, understand the realities of delivering software in an Agile environment, and aren't afraid to challenge an approach when you see a better solution. If you're excited by the opportunity to design and engineer the next generation of mission-focused user experiences, we'd love to hear from you. Position may be performed in the following locations below.  Please note Gaithersburg, MD is the program’s primary work location. Gaithersburg, MD Alexandria, VA Chantilly, VA Englewood, CO St. Louis, MO Tucson, AZ  Clearance Level Required: Active Top Secret/SCI with the ability to successfully pass a Polygraph examination.

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 with product owners, UX/UI designers, software engineers, systems engineers, and mission stakeholders throughout the development lifecycle. Develop reusable UI components, patterns, and design standards that promote consistency and maintainability across the program. Apply user-centered design principles to simplify complex workflows and improve overall 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, 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.

US citizenship is required per contract. Bachelor's degree in Computer Science, Software Engineering, or related field and 8-12 years of prior relevant experience or Master’s with 6-10 years of prior relevant experience. Active Top Secret/SCI with the ability to successfully pass a Polygraph examination. Strong professional experience developing modern web-based user interfaces and user