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.
Clearance Level Required
Active TS/SCI with the ability to successfully pass a Polygraph examination.
Essential Responsibilities
Front-End Development: Design, develop, test, and maintain responsive web applications using modern JavaScript frameworks such as React, Angular, or similar technologies.
Application Integration: Integrate front-end applications with REST APIs, backend services, and data sources.
Software Development: Develop reusable, maintainable, and scalable front-end components following modern software engineering practices.
User Interface Development: Translate requirements and user workflows into intuitive, functional interfaces for complex mission applications.
Performance Optimization: Troubleshoot and improve application performance, responsiveness, reliability, and scalability.
Testing & Debugging: Perform front-end testing, debugging, code reviews, and defect resolution throughout the software development lifecycle.
DevSecOps: Participate in CI/CD pipelines, source control, automated builds, and application deployment processes.
Cross-Functional Collaboration: Work closely with backend engineers, product owners, testers, and mission users to deliver integrated software capabilities.
Agile Development: Participate in Agile development activities including sprint planning, backlog refinement, demonstrations, and retrospectives.
Basic Qualifications
U.S. citizenship is required per contract.
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 hands-on experience with JavaScript, HTML, and CSS.
Experience developing applications using a modern front-end framework such as React, Angular, or similar.
Experience integrating front-end applications with REST APIs and backend services.
Experience developing, debugging, and maintaining production web applications.
Experience with source control tools such as Git.
Experience working in Linux-based environments.
Ability to translate technical and user requirements into functional software solutions.
Strong troubleshooting and problem-solving skills.
Preferred Qualifications
Experience with TypeScript.
Experience with CI/CD pipelines and automated front-end build/deployment workflows.
Experience with Docker, containers, or containerized application environments.
Experience with GitLab and GitLab CI/CD.
Experience with AWS or other cloud environments.
Experience with data visualization technologies such as Grafana or similar tools.
Familiarity with accessibility and usability best practices.
Experience working in Agile software development environments.
Experience developing applications supporting data-intensive or GEOINT mission workflows.
Familiarity with UI design/prototyping tools such as Figma is a plus.
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
October 15, 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.
