Leidos

User Experience Engineer

Huntsville, AL Full time

Looking for an opportunity to make an impact?

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.

Your greatest work is ahead!

Leidos’ Defense Systems Land Systems is seeking a User Experience Engineer to join our team…with the ability and experience to work missile defense projects within the BMD Simulations and Analysis Portfolio. As a UX Engineer, you will have the opportunity to use your design skills and rapid prototyping to not only solve known clients' needs and experiences but uncover new opportunities along the way.

In this role, you will also own the end-to-end experience framework for process automation and workflow tools as well as lead the design in a team environment... The ideal candidate will possess excellent analytical and problem-solving skills, be a strong team player, and able to establish solid working relationships with peers and technical staff members within the program.

If this sounds like the kind of environment where you can thrive, keep reading!

Leidos Defense Systems Sector provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Our team is solving the world’s toughest security challenges for customers with “can’t fail” missions. To explore and learn more, click here!

Are you ready to make an impact? Share your resume with us today!

Primary Responsibilities

  • Drive enhancements to MASC-F products to improve the user experience of our tools and interfaces

  • Manage projects and work product integrations across the Software Development, Systems Engineering, User Engagement teams, and customer stakeholder teams

  • Be responsible for the overall user interface modernization for MASC-F products, tools, and utilities.

  • Work with agile scrum teams to verify acceptance criteria related to interface modernization and usability

  • Identify and maintain user personas to represent key segments of our vast user base to identify UI/UX improvements and understand likely impacts to changes in the user interfaces of MASC-F tools and utilities

  • Processing user feedback to form mid-fidelity wireframes to produce high-fidelity mockups to be used by developers.

  • Work with the Systems Engineering team to help define development requirements

  • Analyzing competitor applications to identify potential UI/UX improvements

  • Work alongside customer stakeholders to select UI/UX features to be worked, gather feedback on potential design updates, and maintain an agile backlog of potential UI/UX enhancements and modernizations for future consideration.

  • Proactively identify areas where UI/UX support is needed and insert themselves into relevant meetings, discussions, and projects to provide expertise and guidance.

  • As the sole UI/UX expert on the team, drive UI/UX decisions and ensure that user-centered design principles are integrated into all aspects of the program

Basic Qualifications

  • Bachelor’s degree with 5 years of prior relevant experience or master’s with 3 years of prior relevant experience

  • 3+ Years’ experience in design tools such as Sketch, Figma, Balsamiq, Adobe XD, or InVision

  • Understanding of user-centered design principles and human-computer interaction

  • Experience in front-end development (HTML, CSS, JavaScript)

  • Basic skills with version control tools such as Git

  • Active secret clearance

  • Full time onsite support

  • Candidate must be a resident of the North Alabama area

Preferred Qualifications

  • Experience developing personas, customer journey maps, conceptual diagrams, wireframes, and prototypes

  • Possess the ability to craft, pitch, and validate long-term design strategies

  • Ability to support multiple release project schedules simultaneously

  • Knowledge of Scaled Agile Framework (SAFe)

  • System Administrator skills highly desired

Come break things (in a good way). Then build them smarter.

We're the tech company everyone calls when things get weird. We don’t wear capes (they’re a safety hazard), but we do solve high-stakes problems with code, caffeine, and a healthy disregard for “how it’s always been done.”

Original Posting:

December 29, 2025

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 $87,100.00 - $157,450.00

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.