GIS Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular-Long Term Assignment Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opportunity: United States European Command (EUCOM) is seeking a skilled and mission-driven GIS Engineer / System Administrator to support the deployment, configuration, and maintenance of multiple Esri Enterprise environments across classified and unclassified networks. This individual will be responsible for ensuring the availability, performance, and security of GIS services and infrastructure that directly support EUCOM operations, planning, and intelligence functions. As part of a dynamic geospatial and IT operations team, the ideal candidate will possess a strong background in Esri Enterprise architecture, system administration, and multi-network deployment strategies in a secure Department of Defense (DoD) environment. Responsibilities: • Design, deploy, and maintain multiple ArcGIS Enterprise (Portal, Server, Data Store) environments across NIPR, SIPR, and JWICS or other compartmentalized networks. • Configure high-availability, load-balanced server clusters to meet mission-critical uptime and performance requirements. • Integrate ArcGIS Enterprise with other DoD tools and data services including Maven Smart Systems, SharePoint Online. • Administer Windows Server environments and perform regular maintenance, patching, and updates to ArcGIS and supporting services (SQL Server, IIS, etc.). • Monitor system health, logs, and service performance; proactively resolve issues and optimize system performance. • Maintain and manage SSL certificates, firewall rules, reverse proxies, DNS records, and Active Directory integration for Esri environments. • Ensure all GIS systems comply with DoD cybersecurity policies (e.g., STIGs, RMF, HBSS, ACAS). • Manage hosted feature layers, map services, and automated publishing processes for time-sensitive operations. • Work with cross-functional teams, including geospatial analysts, IT security, intelligence, and operations personnel to support mission objectives. • Support exercise and real-world operations requiring GIS service uptime and adaptability. • Required to be part of the Emergency Relocation Group (ERG) and maintain Continuity of Operations (COOP) in a time of need. This includes movement to alternate locations to perform duties as required. Qualifications: Required • Active Top Secret//SCI clearance required. • Minimum 5 years of experience in system administration and enterprise GIS deployment. Bachelor’s degree in Information Systems, Computer Science, Geography, Geospatial Information Science, or a related technical field; or equivalent experience. • Proven experience managing ArcGIS Enterprise environments, including Portal, ArcGIS Server, Data Store, and Web Adaptor. • Experience working in DoD or IC environments, especially with multi-network (air-gapped) architectures. • Strong proficiency with Linux, Windows Server, PowerShell, and command-line administration. • Experience with SQL Server or enterprise geodatabases. • Familiarity with SSL/TLS, reverse proxies, load balancers, and DNS as they relate to Esri deployments. • Understanding of Active Directory integration, including SSO and user/group management. • Familiar with RMF, DISA STIGs, and other cybersecurity compliance frameworks. • CompTIA Security or equivalent DoD 8570 IAT Level II certification Desired Certifications: • Esri Enterprise Administration Professional or Associate certification • Microsoft or VMware certifications are a plus. Insert 3-5 bullet points here - ________________________________________________________________________________________ What You Can Expect: A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality. A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy. Your potential is limitless. So is ours. Learn more about CACI here. ________________________________________________________________________________________ Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Learn more here. The proposed salary range for this position is: $90,300 - 189,600 USD CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.