System Administrator (Mid-Senior Level)

System Administrator (Mid-Senior Level)

Full-Time | On-Site | TS/SCI with Full-Scope Polygraph Required

We are seeking an experienced Systems Administrator with at least 10 years of systems administration experience and a technical bachelor's degree to support operations in Annapolis Junction, MD.

Responsibilities

• Support the troubleshooting, maintenance, and administration of endpoint management systems
• Provide Tier 1 and Tier 2 Help Desk support to end users and internal stakeholders
• Deliver timely escalation updates and communicate issue status to leadership and customers
• Support dispatch and ticketing systems by identifying, tracking, and resolving hardware and system-related issues
• Ensure configuration management practices and compliance with applicable security controls and system requirements
• Provide operational support for IT systems, including monitoring, maintenance, and troubleshooting of client/server environments, storage systems, network devices, and mobile platforms
• Implement required security patches, vulnerability remediations, and compliance updates while documenting status in designated tracking systems
• Participate in escalation and incident response processes, ensuring timely communication and issue resolution
• Configure, administer, and maintain UNIX, Linux, and Windows operating systems
• Install, update, and patch operating system software to maintain system security and performance
• Troubleshoot network components and resolve connectivity, reliability, and performance issues
• Implement system enhancements and optimizations to improve reliability, efficiency, and operational performance
• Maintain documentation related to system configurations, troubleshooting procedures, and issue resolution activities

Required Qualifications

• Minimum of 10 years of systems administration experience
• Bachelor's degree in a technical discipline (additional experience may be substituted where applicable)
• IAT Level II certification or equivalent certification meeting federal cybersecurity requirements
• Active TS/SCI clearance with Full-Scope Polygraph

Benefits

• Retirement Planning
  Employer contribution of 6% of salary toward a 401(k) plan with immediate vesting and no employee match required.
• Health, Dental, & Vision Insurance
  Comprehensive medical coverage with employer-paid premiums for employees and eligible dependents.
  Dental and vision coverage may apply to dependent children only, depending on plan selection.
• Paid Time Off
  Employees receive 4 weeks (20 days) of paid time off annually in addition to 11 federal holidays.
• Professional Growth & Compensation
  Opportunities for career advancement, professional development, and competitive compensation designed to support long-term growth.
• Collaborative Culture
  Team-oriented environment that values collaboration, communication, and maintaining a positive workplace culture.
• Transparency & Leadership Support
  Commitment to open communication, honesty, and transparency across all levels of the organization.

About Our Client

Our client is a mission centric, people first company built on the belief that their people make the mission possible. They foster a culture rooted in trust, balance, and well being, where talented professionals are empowered to do meaningful work. Through flexibility, transparency, and strong support, we enable our team to thrive-fueling curiosity, creativity, and innovative solutions that truly serve their clients.

We are an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, disability, veteran status, or any other protected status under applicable law.