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Network Administrator

San Antonio, Texas SOS International LLC (SOSi)

Company Overview

For 29 years, clients in the private and public sectors have relied upon SOS International LLC (SOSi) for critical operations in the world’s most challenging environments. SOSi is privately held, was founded by its current ownership in 1989, maintains corporate headquarters in Reston, VA, and specializes in providing logistics, construction, training, intelligence, and information technology solutions to the defense, diplomatic, intelligence and law enforcement communities.

All interested individuals will receive consideration and will not be discriminated against on the basis of race, color, religion, sex, national origin, disability, age, sexual orientation, gender identity, genetic information, or protected veteran status. SOSi takes affirmative action in support of its policy to advance diversity and inclusion of individuals who are minorities, women, protected veterans, and individuals with disabilities.

5-******-7942: Network Administrator

LocationU.S. – Texas – Joint Base San Antonio – Fort Sam H

Open Date10/31/2018


STG, a wholly-owned subsidiary company of SOS International LLC (SOSi), is seeking a Network Administrator to support the US Army in San Antonio Texas.

Apply technical standards and security policy for LAN topologies and components; identify and remediate security vulnerabilities.

Install, configure, troubleshoot, and support enterprise network devices (i.e. layer 2 & 3 switches and routers). Implement, troubleshoot, and support Voice over IP (VoIP) solution; manage Cisco Call Manager and Unity devices; install, troubleshoot, move, and remove VoIP telephones for customers as required.

Provide local common-user LAN and CAN touch labor (troubleshooting and repairing).

Install, configure, support, and troubleshoot Virtual Private Network (VPN) for remote connections. Support VPN appliances and wireless technologies.

Monitor the limited geographic CAN and LAN by utilizing enterprise management software to monitor network performance, analyze network activity, and maintain a high level of network availability. Perform network discovery and conduct fault analysis.

Provide network utilization reports to the Program Manager and COR.

Manage network equipment/software to include configuration management and capacity management.

Assist with development of an updated Quarterly Enterprise System Management Architecture Design Document describing service level offering deployed and planned enhancements.

Draft and maintain Standing Operating Procedure (SOP) documents.


Security Clearance: Secret

Education: High School

Certifications: DoD 8570 IAT II (Security+ Preferred) and a Computing Environment certification (CCNA or CCNP) within 180 days

5+ years of relevant experience

Experience with CiscoWorks, NetView, Wireless protocols (802.11b/g/n), Wireless Authentication Protocols (EAP, PEAP, EAP-TLS and EAP-TTLS) and Solarwinds Orion software (NPM, netflow, and virtualization, etc.) on a heterogeneous network

Thorough understanding of network protocols and services (TCP, UDP, IP, STP, CDP, HSRP, DNS, DHCP, VTP, VPN, FTP, TFTP, IAS, VoIP, NAT and Dot1.x).

Experience configuring and troubleshooting network components (ASA 5500 Series Adaptive Security Appliances, 3000/4000/5000/6000 series multilayer switches and routers, Cisco Unified IP Phones).

Knowledge and experience communicating networking concepts to technical and nontechnical personnel; ability to develop technical documents and produce system design documentation.

Project a positive image and professional manner at all times; ability to work within the confines of a set time schedule.



Bachelors Degree with 8+ years of relevant experience

Current CCNA certification

Active Top Secret clearance

Normal office environment

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