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Senior Cert System Security/Information Assurance Analyst [Senior System Administrator

Leesburg, VA · Computer/Software
System and Network Support

The Senior System Administrator-Infrastructure Team Lead supports a Civilian Agency Cyber Security Operations Center (SOC) organization protecting the network security of tens of thousands of users. The work site is located in Leesburg, Virginia.
Senior System Administrator-Infrastructure Team Lead responsibilities include:
• Maintain all network devices which may include, but not limited to, switches, hubs, cables, routers, and firewalls.
• Configuration management which includes thorough documentation of all network/hardware changes.
• Provide recommendations to government personnel on performance tuning and hardware enhancements.
• Must have hands-on knowledge of router and switch configurations (LAN, WAN, VLAN).
• Monitor health and welfare of all network hardware equipment.
• Develop Life Cycle plan for all network device in support of infrastructure.
• Maintain connections between primary, secondary, and back-up sites.
• Support Sysadmin with back-up troubleshooting in regards to network.
• Assist government staff with requirements development and prepare evaluation/testing criteria for proposed new equipment as needed.
• Support the stable operation of SOC computing infrastructure in a team environment.
• Provide technical review/support to internal project managers/technical leads.
• Provide systems/network installation/administration support to project managers/tech leads
• Installing, configuring, patching, upgrading and maintaining Windows 2008/2012, servers, and Windows workstation.
• Installation and configuration of Linux OS.
• Linux platform maintenance, patch review, systems checking, new system acquisition and deployment, and implementation of hardened Linux platforms.
• Troubleshooting Linux operating system and system hardware.
• Administration of Linux operating system to include (but not limited to): Managing disk usage - Generating required reports for management - Auditing use of server resources - Monitoring security settings on network resources.
• Maintain DNS server with Active Directory integrated.
• Create, modify, and change MS domain user/computer accounts.
• Maintain and configure printers.
• Create/maintain Ghost images.
• Ensure all systems are running antivirus clients with most recent AV signatures.
• Perform configuration/life cycle management.
• Repair/replace hardware and software as required.
• Track software licensing.
• Perform/monitor daily backup of critical data.
• Configure/administer network devices.
• Update IOS on Cisco network devices.
• Correct/mitigate vulnerabilities as required.
Security Operations Center
• Create/update documentation.
• Review and provide input to Government policy, procedures and publications.
• Coordinate updates to Intranet web sites.
• Provide user training.
• Request/review quotes from vendors and coordinate purchase with authorized government personnel.
• Perform/monitor daily backup of systems/critical data.
• Document system configurations and update existing system documentation.
• Evaluate new software being considered for use in Linux environment.
• Scripting experience is preferred.
• Experience with DELL/SAN storage.
• Any other duties as requested by the Contracting Officer Representative and SOC management.
• Networking - securing networks, performing analyses and applying solutions.
• Protocols – TCP/IP, FTP, and Secure Shell,
• Information Systems Security principles, concepts, procedures and solutions, and
• Firewall configuration and support.
• Cisco Routers and switches, F5 accelerators.
• Voice Switch.
• Dell servers/workstations.
• Cisco switching/routing/security.
• Server configuration, setups, and installations.
• Maintain the Patch Management, SUS.
• Management of critical application servers, data stores, and version control.
• Assist with lifecycle management and mitigation techniques.
• Operating Systems – Windows 7, 2008, 2013, and Linux Redha.t
• Applications – Microsoft Office Suite.
• VMWare support.
• Any other duties as requested by the Contracting Officer Representative and SOC management.
Qualities/Additional info: Senior System Administrator-Infrastructure Team Lead should be a proven team player with excellent oral and written communications skills. System Administrator Infrastructure Team Lead should also be a self-starter, capable of working projects, independently if necessary. Frequent interaction with government client is required. Occasional local travel. Infrequent (<5%) long distance travel.
Job Qualifications:
Required Education and Experience:
- Bachelor's degree in Computer Science or Information systems.
- Minimum six (6) years of relevant professional experience.
- In addition to required education or equivalent experience;
- Minimum five (5) years IT experience with at least three (3) years experience administering Red Hat Linux and Microsoft Windows Server 2008/2013.
Security Operations Center
- Must have five (5) years experience as a Network Administrator in LAN/WAN environment, knowledge with Cisco Switching/Routing/Security administration and maintenance. Server Configuration, Setups and Installations.
- Excellent analytical and communicative skills along with collaborative, teaming and interpersonal skills.
Preferred Experience:
- Experience with Windows 2008/2012 Active Directory, Symantec Ghost, MS Exchange and MS Outlook, and Citrix administration.
- Firewall administration experience (Checkpoint NG, etc.).
- Experience with Dell servers/workstations and CISCO routers/switches.
- Experience with LAN/WAN architecture. Experience with ArcSight ESM. Experience with Java scripting.
- Firewall administration experience (Checkpoint, Juniper, Cisco, etc.).
- Experience working in a network security environment, such as a Security Operations Center (SOC), Computer Emergency Response Team (CERT), Computer Incident Response Team (CIRT), Computer Incident Response Center (CIRC) or Cyber Security Incident Response Center (CSIRC).
MCSE, CCNA and/or CCSA Certification.
- RHCE, Certification and/or MCSE, CCNA, CCSA.
Level of Clearance Required: Department of Defense Secret
US Citizenship YES


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