Job Description
Discover your full potential. At Tetra Tech, we are collaborating with industry-leading experts for a sustainable future for our world. We combine consulting and engineering with advanced analytics and technology to solve the world's most complex challenges. Our innovation hubs across the globe will enable you to share ideas and best practices while growing your professional network. Wherever you are in your career journey, you will benefit from working with world-class engineers, scientists, and technical specialists.
Apply today and join the company that is Leading with Science®.
Management Systems International (MSI), a Tetra Tech Company, is a Washington, D.C. metro area management consultancy with a 40-year history of delivering results for our clients. Our expertise is in the fields of monitoring and evaluation; democracy and governance; peace and stability; rule of law and accountability; education; strategic communications; and leadership and organizational development. MSI has implemented projects in 90 countries around the world including Colombia, Indonesia, Jordan, Kenya, Mexico, Nigeria, Pakistan, Syria and Ukraine. We support clients ranging from the U.S. Government (e.g., the U.S. Agency for International Development, U.S. Department of Defense, U.S. Department of State, and the Millennium Challenge Corporation) to large bilateral and multilateral donors (e.g., the World Bank and the United Nations Development Program). We also work with national and local governments, nongovernmental organizations (NGOs), think tanks, foundations and universities. For more information, please visit our website at
Proposal Summary: The Office of the Under Secretary of Defense for Acquisition and Sustainment (OUSD(A&S)) is responsible for leading the U.S. Department of Defense's (DoD) efforts related to research and development, advanced technology, developmental test and evaluation, production, logistics, installation management, military construction, defense procurement, acquisition policy, environmental and nuclear security, chemical and biological matters, operational energy plans and programs, corrosion policy and oversight, human capital initiatives, as well as small and disadvantaged business management. To accomplish this mission, OUSD(A&S) requires administrative, analytical, and strategic communication support services.
Position Summary: MSI is seeking a Senior Executive Administrative Assistant who will be responsible for providing various administrative services, including official correspondence, maintaining schedules and calendars, and numerous other duties for numerous divisions that support the Office of the Under Secretary of Defense (OUSD), namely Assistant Secretary of Defense (Acquisition), Assistant Secretary of Defense (Energy, Installations and Environment), Assistant Secretary of Defense (Industrial Base Policy), and the Directorate of Business Operations. The position will be based in the DC metro area.
**Please note: Only U.S. citizens with an active Top Secret security clearance with SCI eligibility are eligible to apply.** Responsibilities: - Provide administrative support for OUSD (A&S).
- Maintain assigned Outlook and portal calendars for numerous departments/divisions.
- Monitor due dates, coordinate, assist in completing official correspondence and documents for signature, including letters, notices, instructions, and memoranda.
- Support on assigned fitness report and performance evaluations, awards, training, personnel, security, facilities support.
- Answers the telephone and refers the calls to the appropriate individuals within the office.
- Assist in completing and track/follow-up on assigned OUSD Action Packages and Division documents in routing.
- Weekly: maintain portal sites, documents, links, libraries, announcements, lists and contacts
- Other responsibilities may include agenda management, meeting management, information management, content management, tasker management, office management, document management, facilities management, personnel management, security management, travel management, customer relationship management, operations management, and other office administration duties.
Qualifications: - Must have active Top Secret security clearance with SCI eligibility.
- Must have at least 10 years of executive administrative assistant experience with three (3) years supporting DASD, ASD, or USD level leadership (Tier 1, 2, or 3 SES) within DoD, or commensurate levels of leadership at other agencies within the federal government.
- Proficiency in schedule/calendar management, travel coordination (DTS), and document review and preparation, to include read ahead book preparation, is required.
- Must have excellent written, oral, and interpersonal communication skills.
- Must have excellent organizational skills, the ability to establish and maintain working relationships with internal and external staff members, and the ability to work independently and take a proactive role.
- Must have the flexibility and ability to prioritize tasks according to senior staff requirements.
- Must be proficient in Microsoft Word, Excel, Outlook, PowerPoint, and SharePoint.
- Must be a true team player who maintains a positive attitude in a dynamic environment
- Must have high energy, enthusiasm, tact, and the ability to interact effectively with senior executives from Government and industry as well as Pentagon staff members.
- Must be able to create and foster a cooperative work environment.
- Must be self-directed, detailed oriented in completing assigned tasks, and able to adapt to changing work efforts and manage impact of shifting priorities.
Desired Qualifications - A bachelor's degree from an accredited college/university.
At MSI, health and safety play a vital role in our success. MSI Tetra Tech's employees work together to comply with all applicable health & safety practices and protocols, including health orders and regulations related to COVID-19 that are mandated by local, state and federal authorities.
MSI is an equal opportunity employer. We strive to develop and maintain a culture that honors the perspectives and identities of our employees, our communities and those impacted by our work.
We do not discriminate on the basis of any protected attribute, including race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. In accordance with applicable law, we make reasonable accommodations for applicants' and employees' religious practices and beliefs, as well as any mental health or physical disability needs. MSI is an Equal Opportunity Employer/Affirmative Action/Americans with Disabilities/Veterans Employer.
Reasonable Accommodations: If you would like to request reasonable accommodations during the application process, please visit Tetra Tech's Disability Assistance Page. Our recruitment team looks forward to engaging in an interactive process to provide reasonable accommodations for candidates.
Only candidates who have been selected for an interview will be contacted. No phone calls, please.
Proposal and tender opportunity
U.S. Teams and Clients
Institutional Strengthening and Localization (International Development)
About Tetra Tech: Tetra Tech combines the resources of a global, multibillion-dollar company with local, client-focused delivery in more than 470 locations around the world. Our reputation rests on the technical expertise and dedication of our employees-22,000 associates working together to provide smart, scalable solutions for challenging projects. We are proud to be home to leading technical experts in water, environment, infrastructure, resource management, energy, and international development.
Explore our open positions at Follow us on social media to learn more about our people, culture, and opportunities:
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Tetra Tech is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, military or veteran status, gender, age, disabilities, sexual orientation, gender identity, pregnancy and pregnancy-related conditions, genetic information and any other characteristics protected by the law. We invite resumes from all interested parties. Please visit our website at to see the array of diverse services and exciting projects we are currently working on.
Tetra Tech is a VEVRAA federal contractor and we request priority referral of veterans for available positions.
We thank all applicants for their interest, however, only those candidates selected for interviews will be contacted.
Please no phone calls or agencies. Tetra Tech, Inc.
Job Tags
For contractors, Local area, Shift work,