Senior Executive Assistant

Team CATHEXIS elevates the government contracting experience through rapid response, deep skill, and thoughtful problem-solving and communication. Our core capabilities are our top-tier program and project management, data analytics, and audit services, the backbone of which is our integrated approach to operational excellence.

 You worked hard to get to where you are. You strive to make every day better than the day before. So do we. Team CATHEXIS operates with an all-in mindset. We are working together to create a company that supports our shared values and individual goals. Our values are centered around Respect, Engagement, Customer Service, Integrity, Teamwork, and Excellence in everything we do for our employees, clients, partners, and communities. We believe success is best when we listen and lead with empathy, model high standards of ethics to provide a rewarding candidate experience, work hard, have fun, and appreciate the strengths we all bring to the team, and empower our employees to create innovative and trusted results.

We are looking for a dynamic Senior Executive Assistant to join our team. The Senior Executive Assistant will provide executive-level support to senior leaders within the Office of the Under Secretary of Defense for Policy (OUSD(P)). This role requires exceptional organizational, communication, and problem-solving skills, with the ability to operate effectively in a high-tempo, dynamic environment. manage complex calendars, coordinate travel, oversee correspondence, and facilitate high-level meetings.

This position is based onsite daily at one of several high-profile offices across the National Capital Region.

This position is contingent on a government award.

Responsibilities

• Provide executive-level administrative support to senior executives, managing complex calendars, scheduling, and deconfliction for high-priority engagements
• Coordinate logistics for senior leader engagements, including visitor coordination, security check-in, daybook assembly, and meeting preparation
• Arrange domestic and international travel in compliance with DoD regulations, including Defense Travel System (DTS) processing, APACS submissions, and Foreign Clearance Guide adherence
• Track and route incoming/outgoing correspondence using Correspondence and Task Management System (CATMS), Task Management Tool (TMT), or Enterprise Task Management Software Solution (ETMS2) to ensure timely and accurate responses
• Facilitate and oversee security-related processes, including building access, information system access, and Common Access Card (CAC) requests
• Prepare and edit correspondence, reports, briefings, and presentation materials using Microsoft Office Suite (Outlook, Word, Excel, PowerPoint) and maintain collaboration tools such as SharePoint
• Serve as liaison between senior leaders, internal staff, and external stakeholders to ensure smooth operational flow and mission success
• Other duties as assigned

Requirements

• Active DoD Top Secret (TS) clearance with SCI eligibility at the time of application is required
• Bachelor’s degree and 8 years of experience supporting Administrative Services support in the Federal Government, Military, or Private Sector (e.g., correspondence/workflow management, scheduling, records, travel)
• Associate’s degree may substitute with 10 years of experience supporting Administrative Services support in the Federal Government, Military, or Private Sector (e.g., correspondence/workflow management, scheduling, records, travel)
• High School diploma may substitute with 11 years of general experience (10 years Administrative Services support as above)
• Experience with correspondence/task management systems such as CATMS, TMT, or ETMS2, highly preferred
• Proficiency in Microsoft Office Suite (Outlook, Word, Excel, PowerPoint) and SharePoint
• Extensive experience with DoD scheduling, calendar management, and coordination of senior leader engagements
• Familiarity with DoD travel systems and regulations, including DTS, APACS, and Foreign Clearance Guide compliance
• Strong understanding of DoD security procedures, including clearance processing and physical access protocols
• Excellent organizational, communication, and interpersonal skills with the ability to work under pressure and manage shifting priorities

CATHEXIS offers competitive compensation packages to all eligible employees. Our goal is to provide a compensation package that reflects the value you bring to our team, is competitive with market rates, and promotes your financial security and personal well-being. The annual salary range for this role is $120,000 to 132,500. Please note that the salary information provided is a general guideline. CATHE