Senior Administrative Assistance

Senior Administrative Assistant

Why choose between doing meaningful work and having a fulfilling life? At MITRE, you can have both. That's because MITRE people are committed to tackling our nation's toughest challenges—and we're committed to the long-term well-being of our employees. MITRE is different from most technology companies. We are a not-for-profit corporation chartered to work for the public interest, with no commercial conflicts to influence what we do.

The R&D centers we operate for the government create lasting impact in fields as diverse as cybersecurity, healthcare, aviation, defense, and enterprise transformation. We're making a difference every day—working for a safer, healthier, and more secure nation and world. Our workplace reflects our values. We offer competitive benefits, exceptional professional development opportunities for career growth, and a culture of innovation that embraces adaptability, collaboration, technical excellence, and people in partnership.

If this sounds like the choice you want to make, then choose MITRE - and make a difference with us.

The L610 Infrastructure, Networking, and Communications division is seeking a Senior Administrative Assistant to provide support to two departments - L612 (Cloud and Infrastructure Engineering) and L614 (Intelligent Network Services). L610 focuses on solving complex infrastructure, networking, and communications challenges that are vital to the nation's well-being. This position will play an important role in enabling efficient day-to-day operations and support department leadership, staff, and business processes.

Roles & Responsibilities:

• Work collaboratively across the organization in support of two Department Managers and more than 100 staff members.
• Work closely with the two departments to support the day-to-day programmatic and operational needs of the departments.
• Provide a broad range of administrative support, including scheduling, calendar management, room reservation, arranging telephone and video teleconference connections.
• Plan, coordinate, and support a variety of events and department activities, including venue selection and catering arrangements.
• Assist staff with travel arrangements, prepare itineraries, coordinate conference participation, and arrange required support services.
• Assist staff with purchasing and tracking materials.
• Assist staff with submitting purchase requests, reimbursement requests, and other related administrative actions.
• Assist with training venue selection and coordination, track training licensing, staff training attendance and associated budgets.
• Assist staff with vacation tracking and time reporting.
• Assist with project demand tracking.
• Support hiring activities by scheduling interviews, reserving conference rooms, and preparing interview materials for panelists.
• Support onboarding activities for new staff.
• Develop, update, and maintain department-level collaboration and information-sharing sites, including SharePoint and Teams.
• Develop and maintain departmental files and documentation.
• Partner effectively with other administrative professionals to ensure coordinated and consistent support across the organization.
• Partner with Department Managers and the Finance team to assist with monitoring departmental budgets and financial activities.
• Quickly learn and apply new tools, technologies, and business processes.

Basic Qualifications:

• Typically requires a minimum of 5 years of related experience with a Bachelor's degree; or 3 years and a Master's degree; or a PhD with relevant experience who can immediately contribute at this job step; or equivalent combination of related education and work experience.
• Proficiency with Microsoft Office tools, including Outlook, One Note, PowerPoint, Excel, SharePoint, One Drive, and Teams.
• Proficiency with Zoom, Microsoft Teams, and video teleconferencing technologies.
• Demonstrated ability to work effectively with cross-functional teams and stakeholders.
• Experience supporting large organizations or significant numbers of staff.
• Must be able to obtain Secret Clearance
• Per the U.S. Government's eligibility requirements for a clearance, U.S Citizenship is required.
• This position requires a minimum of 4 days a week on-site

Preferred Qualifications:

• High level of professionalism, poise, and initiative in working with a diverse group of staff and operational support organizations.
• Demonstrated strength in organization and time management, with an emphasis on initiative, independent judgment, accuracy, and follow-through across a broad range of administrative tasks.
• Strong interpersonal, written, and verbal communication skills, with the ability to work effectively with MITRE leadership and staff.
• Demonstrated ability to thrive in a collaborative, team-oriented environment.
• Strong sense of teamwork, dependability, and accountability.
• Ability to adapt quickly, manage competing demands, and maintain attention to detail in a dynamic setting.

Salary compensation range and midpoint:

$62,000 - $77,500 -…