System Administrator, Level 3 (Fort Meade)

Level 3 System Administrator

Are you ready to take your system administration expertise to the next level in support of mission-critical operations? At Independent Software, we're committed to building resilient, secure, and scalable IT environments that serve national security goals. As a Level 3 System Administrator, you'll join a high-performing technical team solving complex challenges across enterprise infrastructure. If you thrive in a collaborative environment and want to make a measurable impact while working with cutting-edge systems, Independent Software is where you belong.

As a Level 3 System Administrator at Independent Software, you will be responsible for supporting, maintaining, and optimizing enterprise IT systems across multiple platforms including UNIX, Linux, and Windows. You will provide Tier 1 through Tier 3 support, resolve escalated issues, and ensure system integrity through patch management, vulnerability scanning, and compliance enforcement. You will also support architectural planning and hardware / software integration across a variety of classified and unclassified networks.

Key responsibilities include :

• Support implementation, troubleshooting, and maintenance of IT systems
• Manage the configuration and operation of client / server / storage / network infrastructure
• Provide Tier 1 (Help Desk), Tier 2, and Tier 3 (Advanced Escalation) technical support
• Perform user account management tasks (create, modify, disable, remove)
• Conduct periodic vulnerability scans and enforce security compliance
• Apply and manage IAVA security patches and record status
• Monitor system performance and optimize resource utilization
• Provide detailed analysis and escalation reporting to internal customers and agency leadership
• Troubleshoot hardware / software issues and support dispatch systems
• Configure and maintain UNIX, Linux, and Windows environments
• Implement system upgrades and enhancements to improve reliability and performance
• Coordinate with the ISSO and ISO to support Change and Configuration Management processes
• Track and complete POA&M milestones; update records in the system of record
• Ensure IT assets comply with Identity & Access Control Management (ICAM) policy
• Apply knowledge of mission islands, Trusted Thin Client, and enhanced VDI technologies
• Analyze and resolve complex integration issues related to hardware, applications, and SOA
• Design systems and mission architecture in collaboration with engineering teams

Required skills and qualifications include :

Education and experience :

Certifications :

Clearance requirement :

We're an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.