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Senior Full Stack / UI Developer

Leidos

$126,100 - $227,950
Sep 3, 2025
Columbia, MD, USA
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Leidos is seeking a Senior Software Engineer to play a dual role in User Interface Development and Full Stack Development within their National Security Sector’s Cyber & Analytics Business Area. The goal is to contribute to cutting-edge solutions in a mission-critical environment, leveraging innovative technologies to drive impactful results.

Requirements

  • Deep knowledge of Java, JavaScript, HTML, CSS, and Python, with strong proficiency in algorithm development and performance optimization.
  • Experience with React or similar UI frameworks (Vue, Angular), and advanced UI design skills.
  • Skilled in consuming and creating REST APIs and WebSockets, with expertise in AWS, Node.js, and Ruby on Rails.
  • Proven ability to design, optimize, and develop solutions for advanced computing environments.
  • Hands-on experience with AWS and modern software engineering principles.
  • Experience with modern application stacks, including microservices and cloud-native environments utilizing Kubernetes and Docker.
  • Experience with JavaScript 3D libraries such as Three.js is preferred

Responsibilities

  • Design and develop intuitive UI components that maximize usability and performance.
  • Implement React or similar UI frameworks (Vue, Angular) to build user-friendly interfaces.
  • Develop and maintain web services and interfaces that integrate seamlessly with UI components.
  • Build new product features and APIs, ensuring scalable and efficient solutions.
  • Contribute to front-end and back-end development processes, optimizing overall system performance.
  • Perform testing, troubleshoot software, and apply bug fixes to ensure reliability.

Other

  • Active TS/SCI with Polygraph
  • Bachelor’s degree in Computer Science or related field, plus 14 years of software development experience (or 18 years without a degree).
  • Collaborate with Subject Matter Experts and Systems Engineers to refine system requirements and enhance user experience (UX).