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Leidos · 8 hours ago

Junior Software Engineer - TS/SCI with Poly

Chantilly, VA

Full-time

Onsite

Entry Level

$58K/yr - $105K/yr

1+ years exp

Leidos is seeking a motivated Junior Software Engineer to join their team in developing and maintaining modern web applications using React.js. This junior position is ideal for recent graduates or early-career professionals passionate about front-end development and eager to grow in a dynamic, mission-focused environment.

ComputerGovernmentInformation ServicesInformation TechnologyNational SecuritySoftware

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

Develop and maintain user-facing features using React.js, including building reusable components and managing application state (e.g., useState, useEffect)

Translate UI/UX designs and wireframes into high-quality, responsive code using HTML5, CSS3, and JavaScript (ES6+)

Collaborate with backend developers to integrate RESTful APIs and ensure seamless data flow

Utilize AI coding tools (e.g., GitHub Copilot, ChatGPT, Claude) for code suggestions, generation, debugging, refactoring, and optimization to improve development efficiency

Participate in code reviews, unit testing, and debugging to ensure performance, compatibility across browsers/devices, and adherence to best practices

Implement clean, modular, and maintainable code following team standards

Stay current with emerging front-end technologies and AI-assisted development trends

Contribute in an Agile environment, including daily stand-ups, sprint planning, and team collaboration