MANTECH seeks a mission-driven and detail-oriented Senior Staff Officer to join our team in Springfield, VA

This role is 100% on-site. The Senior Staff Officer is an experienced and highly competent professional to perform significant duties with little to no supervision. This work role will provide direct, high-level support to senior leadership, independently managing a wide range of functions and tasks. This individual will track strategic issues, develop planning guidance, and resolve complex business and administrative challenges that are central to office management, business operations, and communications. This role is responsible for the seamless operation of an executive office, providing direct, high-level support to senior leadership and ensuring all administrative and operational functions are executed with excellence.

Responsibilities include but are not limited to:

• Executive Calendar & Front Office Management: Synchronized complex daily and long-range calendars for senior leadership, successfully managing day-to-day operations and front office business activities.

• Strategic Planning Support: Tracked critical operational and strategic issues for leadership, developing high-level roadmap strategies and implementing organizational planning guidance.

• End-to-End Task Coordination: Served as the lead coordinator for all internal and external taskers via N-CERTS, driving the initiation, assignment, consolidation, and quality control of leadership submissions.

• Executive Communications & Briefings: Drafted and prepared executive briefings, PowerPoint presentations, talking points, and staff summaries for senior directors, agency heads, Intelligence Community (IC) partners, and industry stakeholders.

• Comprehensive Meeting & Event Logistics: Facilitated leadership-directed meetings, conferences, and off-sites by managing facilities, VTC setups, read-ahead materials, and tracking action items to closure.

• Defense Travel System (DTS) Administration: Managed and audited complex domestic and foreign travel arrangements, accurately processing travel orders and vouchers utilizing DTS and MET tracking systems.

• Facilities & Information Management: Oversaw the office records program, managed SharePoint sites and security permissions, updated rosters, and coordinated logistics for office moves and supply inventories.

• Process Improvement & Staff Mentorship: Authored Standard Operating Procedures (SOPs) to resolve administrative gaps, while serving as a subject matter expert providing mentorship to junior administrative staff.

Minimum Qualifications

• 12+ years of demonstrated experience performing significant administrative or office manager duties for senior-level leadership, with a proven ability to lead tasks, sub-tasks, and projects independently and to closure and a Bachelor’s degree in Business, Management, or a related field. In lieu of a degree, 15+ years of directly applicable experience is required.

• Demonstrated knowledge of office information technology (IT) equipment (e.g., copiers, scanners, facsimile machines, computer workstations, phones, teleconference/video teleconference equipment) with the ability to independently operate such equipment in completing administrative tasks.

• Proven ability to plan, lead, and follow through on complex projects with minimal supervision.

Preferred Qualifications

• Proficiency with other government systems such as the Defense Civilian Intelligence Personnel System (DCIPS), PeopleSoft, NGA Central Electronics Routing and Tasking System (N-CERTS), and Management and Execution Tracker (MET).

• Expertise with government systems, including Defense Travel System (DTS).

• Demonstrated experience with records management, best practices, and information management tools.

Clearance Requirements

• Must have a current/active TS/SCI security clearance and be willing and able to obtain a polygraph.

Physical Requirements

• The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.