This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff Software Engineer (Cleared) based in the United States. This role offers the opportunity to build secure, mission-critical software solutions that support important government and defense initiatives.You will work alongside talented engineers, product specialists, and clients to deliver impactful technology through modern software practices.The position focuses on hands-on engineering, technical leadership, and helping teams adopt agile, secure, and efficient development approaches.You will contribute across the full software lifecycle, from architecture and implementation to testing, deployment, and continuous improvement.This is an ideal opportunity for an experienced engineer who enjoys solving complex problems, mentoring others, and using technology to create meaningful outcomes.You will join a collaborative environment where innovation, autonomy, learning, and mission-driven engineering are central to the work.