Ready to build technology that makes a difference? At Leidos, you’ll help shape the future of intelligence operations by developing modern, high-performance web applications for mission-critical systems. As a Front-End Software Engineer supporting a premier Intelligence Community customer, you’ll work alongside experienced engineers and mission users to deliver capabilities that directly support national security.
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 intelligence customers’ missions to defend against evolving threats around the world. Our team’s focus is to ensure our customers have the right tools, technologies, and capabilities to keep pace with an evolving security landscape. Geospatial Analyst Solutions Directorate, part of the National Solutions Business Area, is currently seeking a skilled and experienced Mid-Level Front-End Software 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 Front-End Software Engineer, you will design, develop, integrate, and maintain responsive web applications supporting complex mission workflows. You will work closely with backend engineers, product owners, and end users to translate mission requirements into reliable, intuitive, and production-ready front-end capabilities.
The ideal candidate has strong hands-on experience with modern JavaScript frameworks and front-end software development, along with experience integrating applications with backend services and REST APIs.
Although the core team is located in Gaithersburg, MD, qualified candidates may also be based in Alexandria, VA; Englewood, CO; Tucson, AZ; or potentially Chantilly, VA.
Active TS/SCI with the ability to successfully pass a Polygraph examination.
Essential Responsibilities
Basic Qualifications
#NSBA
#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.
November 13, 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 $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 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.
