Leidos

Mid-Level UI/UX Engineer

Leidos  •  $87k - $157k/yr  •  Gaithersburg, MD (Onsite)  •  2 months ago
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Job Description

Ready to design technology that makes a difference? At Leidos, you’ll help shape the future of intelligence operations by creating intuitive, high-impact user experience for mission-critical systems. As a UI/UX Engineer supporting a premier Intelligence Community customer, you’ll turn complex challenges into elegant solutions, working alongside innovative teams to deliver capabilities that strengthen national security. This is an opportunity to see your designs move beyond the screen and directly support real-world missions of national importance.

Leidos Intelligence Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers’ mission to defend against evolving threats around the world. Our team’s focus is to ensure our customers have the right tools, technologies, and tactics to keep pace with an ever-evolving security landscape and succeed in their pursuit to protect people and critical assets.

​Geospatial Analyst Solutions Directorate, part of the National Solutions Business Area, is currently seeking a skilled and experienced Mid-Level UI/UX Engineer for the Maru Program. The Maru Program delivers mission-critical, modern software solutions across our customer’s enterprise using Agile, DevSecOps, and cloud-native methodologies.

As a UI/UX Engineer, you will design and develop intuitive, user-centered interfaces for mission-critical applications. This role bridges design and engineering, focusing on creating seamless user experiences while delivering production-ready front-end solutions.

The ideal candidate has a strong foundation in user experience design, front-end development, and usability principles, with the ability to translate complex technical workflows into clean, efficient, and accessible interfaces. This individual will work closely with backend engineers, product owners, and end users to improve usability, performance, and overall user satisfaction.

Citizenship & Security Clearance Requirements

  • U.S. Citizenship
  • Active TS/SCI with the ability to successfully pass a Polygraph examination

Essential Responsibilities

  • UI/UX Design & Implementation: Design and develop intuitive, responsive user interfaces for web-based applications
  • User Experience Optimization: Translate complex workflows into simple, efficient user experiences that improve usability and adoption
  • Front-End Development: Build and maintain front-end components using modern frameworks (e.g., React, Angular, or similar)
  • Usability & Accessibility: Ensure applications meet usability standards and accessibility best practices
  • Design Systems: Contribute to and maintain consistent design patterns, components, and style guides
  • User Research & Feedback: Gather and incorporate user feedback to continuously improve interface design and functionality
  • Cross-Functional Collaboration: Work closely with backend engineers, product teams, and stakeholders to align UI/UX with system capabilities
  • Performance Optimization: Improve front-end performance, responsiveness, and scalability

Basic Qualifications

  • Bachelor’s degree in Computer Science, Software Engineering, or related field with 4–8 years of relevant experience or Master’s degree with 2–6 years of relevant experience
  • Strong experience with front-end technologies (JavaScript, HTML, CSS)
  • Experience with modern UI frameworks (React, Angular, etc.)
  • Demonstrated experience designing user-centered interfaces for complex applications
  • Understanding of UX principles, usability, and interaction design
  • Experience working in Linux-based environments
  • Ability to translate user needs into functional design solutions

Preferred Qualifications

  • Experience with design tools (Figma, Sketch, Adobe XD)
  • Experience with data visualization tools (e.g., Grafana or similar)
  • Familiarity with REST APIs and backend integration
  • Exposure to CI/CD pipelines and front-end deployment workflows
  • Experience working in Agile environments
  • Experience designing and developing intuitive user interfaces for data-driven GEOINT applications.

#Maru

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:

June 10, 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 $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.

Leidos

About Leidos

Leidos is a Fortune 500® innovation company rapidly addressing the world’s most vexing challenges in national security and health. The company's global workforce of 48,000 collaborates to create smarter technology solutions for customers in heavily regulated industries. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $15.4 billion for the fiscal year ended December 29, 2023.

Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.

Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.

Your most important work is ahead, visit careers.leidos.com for our latest opportunities.

Industry
Aviation & Aerospace
Company Size
10,000+ employees
Headquarters
Reston, Virginia
Year Founded
1969
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