Senior Nexus Systems Administrator

CACI; Omaha (NE); On-site; USD 65,000 - 137,000; Full time

Job summary

An established industry player is seeking a Senior Nexus Systems Administrator to enhance mission-critical IT services for USSTRATCOM. This role demands expertise in managing Nexus systems, ensuring optimal performance, and implementing advanced network security measures. With a commitment to integrity and innovation, the company fosters a culture of trust and continuous growth, providing a supportive environment for career advancement. If you are passionate about making a difference in national safety and thrive in a dynamic setting, this opportunity is for you.

Benefits

Healthcare Benefits

Flexible Time Off

Retirement Plans

Continuing Education

Family Support Programs

Qualifications

• 7+ years in systems administration with Nexus or similar experience.
• Strong knowledge of network protocols and security.

Responsibilities

• Support Nexus Repository management and monitor system performance.
• Manage network configurations including VLANs and routing protocols.
• Implement advanced Nexus device features and network security measures.

Skills

Nexus Repository Management

Network Performance Monitoring

Network Configuration Management

Capacity Planning

Network Security Measures

Problem-Solving Skills

Team Collaboration Skills

Education

Bachelor's Degree in Computer Science

8140 Certification

Tools

Cisco NX-OS

Scripting and Automation Tools

AWS

Job description

**Senior Nexus Systems Administrator**

Job Category: Information Technology
Time Type: Full time
Minimum Clearance Required to Start: TS/SCI
Employee Type: Regular
Percentage of Travel Required: Up to 10%
Type of Travel: Continental US

The Opportunity:

We are seeking a Senior Nexus Systems Administrator to support complex IT services and strategic mission systems development for USSTRATCOM. This role involves designing, implementing, managing, and optimizing Nexus systems critical to mission operations.

The work location is Omaha, Nebraska. This position is contingent upon contract award of the United States Strategic Command SCITLS.

Responsibilities:

• Support Nexus Repository management
• Monitor and troubleshoot system and network performance, implement corrective actions
• Manage network configurations, including VLANs, routing protocols (BGP, OSPF), QoS, and security policies
• Perform capacity planning and upgrades for scalability and performance
• Implement advanced Nexus device features like Fabric Path, VXLAN, MLAG
• Configure and troubleshoot network segmentation and security policies (ACLs, QoS)
• Manage Cisco NX-OS, scripting, and automation tools
• Implement network security measures on Nexus devices
• Collaborate on network architecture design and deployment
• Document network topology and configurations
• Lead or support project implementations and provide technical expertise
• Work rotating shifts as needed
• Perform additional duties as assigned to meet mission objectives

Qualifications:

Required:

• TS/SCI security clearance with SCI eligibility
• Bachelor’s degree in Computer Science, IT, or related field
• Minimum 7 years in systems administration, with Nexus or similar experience
• 8140 Certification within 6 months (e.g., Security+, GSEC, Cloud+)
• Additional certifications in DevSecOps, AWS, or related fields
• Strong knowledge of network protocols, security, virtualization, and cloud services
• Excellent problem-solving, communication, and team collaboration skills
• Ability to adapt to changing priorities and multitask effectively

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What You Can Expect:

A culture of integrity. We prioritize character and innovation, supporting our team in high-stakes missions to ensure national safety.

An environment of trust. We value diversity and provide autonomy, flexible time off, and learning resources.

A focus on continuous growth. We support career advancement and building a meaningful legacy.

Your potential is limitless. So is ours.

Learn more about CACI here.

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Pay Range: $65,000 - $136,500. Compensation depends on various factors including location, experience, skills, education, and certifications. We offer comprehensive benefits including healthcare, wellness, retirement, family support, continuing education, and time off. Learn more here.

We are an Equal Opportunity Employer, considering all qualified applicants without discrimination based on race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, veteran status, or other protected characteristics.