Intermediate Classified Systems Administrator

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. MITRE’s Classified Enterprise Infrastructure is looking for a Junior Systems Administrator. A successful candidate will be delivering timely, effective, and sustainable capabilities to various projects across MNS and MPS sector offices helping to ensure the warfighter’s & homeland’s mission success. The focus on this position is user/customer facing support, with secondary responsibilities and opportunities in CEI technical spaces. Role & Responsibilities: Incident and Request Management: Handle and resolve escalated service desk tickets, ensuring timely resolution of technical issues and user requests while adhering to established SLAs (Service Level Agreements). System Administration: Perform routine maintenance tasks, such as user account management, password resets, access provisioning, and basic troubleshooting for hardware, software, and network-related issues. Documentation and Knowledge Base Maintenance: Create, update, and maintain technical documentation, user guides, and knowledge base articles to improve efficiency and empower end-users to resolve common issues independently. Escalation and Collaboration: Collaborate with higher-level IT teams or vendors to escalate complex issues, ensuring proper communication and follow-up until resolution. Monitoring and Reporting: Monitor system performance, service desk metrics, and ticket trends, providing regular reports to management and identifying opportunities for process improvement. Training and Support: Provide guidance and training to junior service desk staff and end-users, promoting best practices and ensuring consistent adherence to Classified IT policies and procedures. Basic Qualifications: Typically requires a bachelor’s degree and a minimum of 2 years of related experience; or an advanced degree with relevant experience who can immediately contribute at this job step; or equivalent combination of related education and work experience. Active Top-Secret Clearance. In accordance with DoD 8570.01M, the selected individual must meet the requirements of an IAT Level II as a condition of employment and computing environment training/certification. Security+ Certification / 8570 Certification – IAT Level II (Must possess certification within 6-months of hire date) 1+ year of relevant system administration experience This position has an on-site requirement of 5 days a week on-site. Preferred Qualifications: Excellent verbal and written communication skills to interact effectively with users, stakeholders, and security personnel while maintaining professionalism in a high-stakes environment. Experience with classified IT systems, including secure networks (e.g., SIPRNet, JWICS), secure file transfer protocols, and government-approved software and hardware. Demonstrated ability to follow strict procedures, document actions accurately, and ensure compliance with security policies and operational guidelines. Excellent verbal a