Administrator Sr

Moseley Technical Services, Inc.•Scottsdale, AZ

3d•Onsite

About The Position

We are seeking an Executive Administrator with an active TS/SCI clearance to provide high-level administrative support to Directors, Senior Managers, and large organizational teams in a secure defense environment. This role requires expertise in executive calendar management, travel coordination, meeting planning, expense reporting, Microsoft Office, and confidential administrative operations supporting mission-critical programs and senior leadership.

Requirements

U.S. Citizenship is required by Federal Law
Active Department of Defense TS/SCI security clearance required at time of hire.
High School Diploma or equivalent required.
Related vocational training plus a minimum of 5 years of administrative or business experience; OR a minimum of 8 years of administrative or business experience.
Experience providing executive-level administrative support to Directors, Senior Managers, or equivalent leadership positions.
Experience managing complex calendars, executive schedules, travel arrangements, meetings, and business operations support.
Strong working knowledge of Microsoft Office Suite, including Outlook, Word, Excel, and PowerPoint.
Experience coordinating local, domestic, and international travel while adhering to applicable security requirements.
Strong organizational, time management, prioritization, and multitasking skills.
Ability to handle highly sensitive and confidential information with professionalism and discretion.
Excellent written and verbal communication skills, including document preparation, editing, proofreading, and correspondence management.

Nice To Haves

Experience supporting executives within defense, aerospace, government, intelligence, or classified environments.
Experience supporting organizations with large employee populations and complex operational requirements.
Strong writing, editing, grammar, and business communication skills.
Experience improving administrative processes and implementing operational efficiencies.
Familiarity with AI-enabled productivity tools and process improvement initiatives.
Proven ability to build collaborative relationships and foster trust across leadership teams and stakeholders.

Responsibilities

Provide comprehensive administrative support to Directors, Senior Managers, and organizations consisting of 35 or more employees.
Manage complex executive calendars, schedules, and meeting coordination to ensure efficient use of leadership time.
Coordinate local, domestic, and international travel arrangements, including itineraries, reservations, travel documentation, and security-related travel requirements.
Prepare and process expense reports, time reporting, and associated administrative documentation.
Organize and coordinate meetings, conferences, briefings, and leadership events.
Maintain accurate records, correspondence, reports, and administrative documentation.
Serve as a liaison between leadership, internal teams, and external stakeholders while maintaining professionalism and discretion.
Support leadership priorities by proactively managing administrative details and resolving scheduling conflicts.
Prepare, edit, proofread, and distribute written communications, presentations, reports, and briefing materials.
Ensure strict adherence to confidentiality, security requirements, company policies, and administrative procedures.
Utilize Microsoft Office applications and business systems to support daily operations and reporting requirements.
Identify opportunities to improve administrative processes, efficiency, and workflow effectiveness, including leveraging AI-enabled tools where appropriate.
Support special projects and additional administrative responsibilities as assigned.