Parsons Corporation is seeking a Senior Software Engineer SME to join their team in Annapolis Junction, MD. As a leading technology-focused defense and infrastructure engineering firm, Parsons delivers innovative solutions to complex challenges in the defense, intelligence, and critical infrastructure markets. The role requires expertise in software engineering and technical leadership capabilities. The position appears to be focused on defense/security related software development, though specific details about the role's responsibilities and requirements are not provided in the source HTML.