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Job Title: Administrative Assistant Location: Arlington, Virginia Type: Contract To Hire Compensation: $30.00 per hour Contractor Work Model: Onsite Security Clearance: Capable of obtaining a DoD Security Clearance

Overview

We’re looking for a highly organized and proactive Administrative Assistant to support senior leadership in a fast-paced, collaborative environment. In this role, you’ll play a key part in keeping operations running smoothly—managing schedules, coordinating meetings, and ensuring seamless communication across multiple teams and organizations.

This is a great opportunity for someone who thrives in a dynamic setting, enjoys multitasking, and takes pride in staying one step ahead.

What You’ll Do

Executive & Team Support

• Provide day-to-day administrative support to senior leadership
• Coordinate activities and follow-ups across multiple teams and stakeholders
• Anticipate leadership needs and proactively prepare for upcoming priorities

Calendar & Schedule Management

• Manage complex, frequently changing calendars using Microsoft Outlook
• Coordinate meetings, conference rooms, and visitor schedules
• Communicate schedule changes quickly and effectively to all participants

Meetings & Coordination

• Organize and support team and leadership meetings
• Prepare agendas, attend meetings, and capture notes and action items
• Track and follow up on key deliverables and action items

Travel & Expense Management

• Arrange domestic and international travel, including logistics and itineraries
• Prepare and submit expense reports accurately and on time
• Anticipate potential travel challenges and plan alternatives

Office Operations & Technology

• Support the setup and operation of audiovisual and telecommunications equipment
• Help maintain smooth day-to-day operations within the office environment

What You Bring

Required Qualifications

• 3+ years of experience supporting senior leaders as an Administrative Assistant (ideally in a government or defense-related environment)
• Strong proficiency in Microsoft Office (Outlook, Word, Excel, PowerPoint)
• Experience managing calendars, emails, and schedules in a fast-paced environment
• Experience coordinating travel (domestic and international) and expense reporting
• Ability to obtain a DoD Security Clearance

Skills & Strengths

• Highly organized with strong attention to detail
• Excellent time management and ability to prioritize competing tasks
• Strong written and verbal communication skills
• Proactive, self-motivated, and able to work with minimal supervision
• Comfortable working with a variety of stakeholders across different teams and organizations
• Quick learner with a positive, team-oriented mindset

Nice to Have

• Advanced skills in Microsoft Outlook and Office tools
• Experience working in a fast-paced, multi-team or cross-organizational environment
• Experience managing travel risks and adjusting plans as needed
• Experience supporting diverse teams, including international stakeholders

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. #M-1 #LI-AJ1 Ref: #851-Rockville-S1