Systems Administrator II (F5) in San Antonio, Texas at Aleut Federal, LLC

Aleut Federal, LLC
Systems Administrator II (F5)

Job Category: Technology
Requisition Number: SYSTE003689

Posted: May 12, 2026
Schedule: Full Time
Location: San Antonio, Texas 78201, United States

Key Responsibilities

Enterprise Systems Administration & Integration

• Provide technical leadership for enterprise hardware, software, and network operations
• Direct and monitor enterprise systems to ensure high availability, performance, and scalability
• Translate business requirements into enterprise computing architectures, designs, and technical solutions
• Perform engineering analysis and integration of enterprise service alternatives in support of modernization initiatives
• Interface with end users and operations teams to support service delivery and operational needs

F5 Load Balancing & Application Delivery (Primary Specialty)

• Serve as Subject Matter Expert (SME) for F5 BIG-IP platforms (LTM, GTM/DNS, ASM preferred)
• Design, configure, and maintain application delivery and load balancing solutions
• Manage:
• Virtual servers, pools, nodes, and iRules
• SSL offloading and certificate management
• High availability (HA) configurations and failover
• Monitor and optimize traffic distribution, application performance, and system availability
• Troubleshoot complex issues related to load balancing, application delivery, and network traffic flows
• Integrate F5 solutions into enterprise architectures and modernization efforts

Infrastructure Operations & Troubleshooting

• Monitor and resolve issues across:
• Servers (Windows & UNIX/Linux)
• Network systems
• Storage environments (SAN/NAS)
• Applications and enterprise services
• Utilize system and network tools to diagnose and resolve complex performance and availability issues
• Conduct root-cause analysis and implement preventive measures
• Improve enterprise system architecture and performance through proactive enhancements

Systems Installation, Maintenance & Support

• Install, configure, and maintain:
• Servers and workstations
• Operating systems (Windows, UNIX/Linux)
• Enterprise applications and patches
• Support both physical and virtual environments
• Operate and maintain backup and recovery systems, including SAN-based solutions
• Perform routine testing, validation, and integration of enterprise production systems

Systems Monitoring & Optimization

• Utilize enterprise tools to:
• Identify, diagnose, and troubleshoot system issues
• Monitor system health and performance
• Perform routine testing, analysis, and integration of enterprise solutions

Continuously improve system reliability, efficiency, and scalability

Required Certifications

• Security+
• F5 Certified BIG-IP Administrator (201)
• CompTIA Linux+ or equivalent

Required Qualifications

• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience)
• 3+ years of experience in enterprise systems or infrastructure engineering
• 3–5+ years of hands-on experience with F5 BIG-IP administration
• Strong knowledge of:
• Load balancing concepts and application delivery
• Networking fundamentals (TCP/IP, DNS, HTTP/S, routing)
• Windows and UNIX/Linux operating systems
• Enterprise storage (SAN/NAS) and backup systems
• Proven ability to troubleshoot complex infrastructure and application delivery issues

Work Schedule: This position is for Monday-Friday 0700-1600 with minimal need to resolve emergency outages after hours and weekends.

We will accept applications for this position until 05/22/2026 or until filled.

Aleut offers the following benefits to eligible employees:

• Health insurance
• Dental/Vision insurance
• Paid Time Off
• Short- and Long-Term Disability
• Life insurance
• 401k and match

Aleut Federal, LLC provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, sexual orientation, gender identity or genetics. In addition to federal law requirements, AF complies with applicable state and local laws governing nondiscrimination in employment in every location where the company has facilities. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training. AF prohibits workplace harassment based on race, color, sex, religion, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status.

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