KBR's National Security Solutions team is seeking a Senior Full-Stack Software Engineer to join their mission-critical projects in national security and space reconnaissance. This role offers an opportunity to work on innovative projects that directly impact national security, combining both frontend and backend development responsibilities. The position requires expertise in modern web technologies, including Vue.js, React, and Angular, as well as backend technologies like MongoDB and Kafka. The ideal candidate will have 10+ years of experience and be eligible for DoD Security Clearance. KBR provides a collaborative environment where engineers can contribute to significant space defense projects while working alongside a dynamic team. The company's culture is built on their ONE KBR Values, emphasizing people-first approaches, integrity, and team success. With approximately 29,000 employees worldwide and operations in 40 countries, KBR offers a stable and growth-oriented environment for technology professionals looking to make a meaningful impact in defense and space technology.