Senior Administrative Specialist

Company Description KASTELLUM Group, LLC is a Strategic Planning and Subject Matter Expert consulting firm serving the Defense, Cyber, Intelligence, Space, and related business sectors. The organization helps clients and partners make informed decisions, implement effective solutions, and achieve predictable success. KASTELLUM primarily supports U.S. Combatant Commands with highly experienced professionals who address complex strategic challenges. The firm focuses on issues driven by great power competition, cyber and space dominance requirements, and traditional nation-state and counterterrorism concerns. Team members contribute to mission-critical work with national and global impact.Role Description: The Senior Administrative Specialist is a full-time, on-site role based in Columbia, MD. This position provides high-level administrative support, including managing calendars, scheduling meetings, coordinating travel, and preparing correspondence and reports for leadership and project teams. The specialist will organize and maintain records, support document and presentation preparation, assist with basic finance-related tasks such as expense tracking, and help streamline office workflows. Daily responsibilities also include serving as a primary point of contact for internal and external stakeholders, ensuring professional communication and customer service, and supporting the smooth execution of strategic planning and consulting activities. The role requires strong attention to detail, discretion with sensitive information, and the ability to prioritize multiple tasks in a fast-paced environment.QualificationsClearance: TS/SCI clearance w/CI PolyHigh School Diploma or GED10 years of experience with office Administration; 3 years working on a StaffStrong Communication skills, including clear written and verbal communication and professional interpersonal skills.Robust Analytical Skills for organizing information, tracking data, and supporting decision-making and reporting.Proficiency in Administrative Assistance, including scheduling, records management, document preparation, and office coordination.Customer Service orientation, with the ability to support internal teams and external partners in a responsive and professional manner.Proficiency with office productivity tools (e.g., Microsoft Office or similar suites) and comfort learning new systems.Demonstrated ability to manage multiple priorities, meet deadlines, and work independently with minimal supervision.Prior experience in defense, government, intelligence, or related consulting environments is preferred.Relevant education or equivalent experience in business administration, management, or a related field.Interested? apply via https://www.clearancejobs.com/jobs?pID=858040 or contact us for more information at: staffing@kastellum.com || www.kastellum.com