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Senior System Administrator

CACI International Inc
Poznań, Polandfull_timeVerifiedPosted 9 Aug 2025
💰 $199,100/yr($94,800/yr$199,100/yr)

About the role

Senior System Administrator

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: Secret

Employee Type: Regular-Long Term Assignment

Percentage of Travel Required: Up to 10%

Type of Travel: Local

* * *

The Opportunity:

Are you interested in continuing your career in Europe in a mission focused environment? CACI has established upcoming positions throughout the European theater supporting multiple customers for the Department of Defense. We are looking for experienced, innovative and motivated IT Specialists to support enablement of USAREUR-AF and their Mission Partners mission objectives.

CACI has an excellent opportunity for an experienced, self-directed, Sr. System Administrator. This position is in support of a Department of Defense (DoD) organization, USAREUR-AF, Mission Partner ARN. located OCONUS in Pila, Poland. This position is required to travel OCONUS.  This position is located OCONUS.

Responsibilities:

  • Supports installing operating system software, patches, and upgrades, including cloud-based systems

  • Provides support and tech expertise in systems technology, including virtual hardware and cloud capabilities

  • Manages network and systems configurations to improve performance and maintain compliance with cybersecurity ATO requirements

  • Maintains network Active Directories (ADs), file servers, and print servers

  • Assesses and supports testing of proposed configuration changes and documents configuration changes

  • Ensures configurations enable automated updating (e.g., System Center Configuration Manager)

  • Administers and maintains virtualization platforms (e.g., VMware)

  • Ensures system backups, recovery, and storage provisioning are adequate to support Continuity of Operations (COOP) and Disaster Recovery (DR) plans

  • Supports COOP and DR reviews and exercises, including developing plans or scenarios, and implements changes identified and approved as a result of exercises

  • Performs routine audits of operating systems, servers, and applications

  • Supports forensic audits and provides reports or resolutions for incidents

  • Analyzes, troubleshoots, and resolves system hardware, software, and networking issues, including system outages

  • Monitors response times, evaluating user satisfaction levels and making recommendations for system improvements

  • Interfaces with vendors/Government/technical staff on technical solutions, system implementation, optimization, and ongoing management

  • Participates and contributes to discussions and evaluations of new technologies

  • Possesses and applies a comprehensive knowledge across key tasks and high-impact assignments

  • Functions as a technical expert across multiple project assignments

  • Mentors less-experienced personnel and may supervise others

Qualifications:

Required:

  • Currently hold an adjudicated TS/SCI

  • Years of Experience: 8 - 12

  • Education: BA/BS in related field preferred or equivalent experience considered

  • Certification: Required 8140.03 Cert - 451 - Intermediate and additional Cert - Not Applicable

  • DoD 8140.03 Compliant: Approved Certifications

  • Exhibits mastery of operating system management and network administration, with particular emphasis on cloud-based systems and virtual environments.

  • Possesses comprehensive knowledge of system configurations, cybersecurity compliance, and performance optimization techniques across complex IT infrastructures.

  • Exhibits strategic expertise in managing active directories, file servers, and virtualization platforms such as VMware, ensuring robust system backups and storage provisioning for continuity of operations and disaster recovery.

  • Excels in troubleshooting and resolving advanced system hardware, software, and networking issues, including forensic audits and incident resolution.

  • Commands proficiency in evaluating user satisfaction levels and implementing system improvements to enhance performance.

  • Displays leadership qualities through mentoring junior staff, interfacing with vendors and technical teams, and functioning as a technical expert across multiple high-impact projects. Demonstrates ability to contribute to technology evaluations and drive adoption of innovative solutions in enterprise environments.

  • Currently hold an adjudicated Secret with ability obtain and maintain a TS/SCI Clear

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Company

CACI International Inc

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