SUMMARY:

Accomplished IT Professional with 20 years of experience in the areas of Network Engineering, Network Administration, and Systems Administration.

WORK EXPERIENCE:

Confidential

Network Engineer/Systems Administrator

Responsibilities:

• Troubleshoot all network issues and outages
• Configure and maintain all CISCO routers and switches
• Ensure that all equipment is STIG compliant and adheres to all network security standards
• Monitor reliability of LAN/WAN systems
• Implemented 802.1x across the network
• Maintained and upgraded all Windows Servers from 2012 - 2016

Confidential

Network Engineer/Systems Administrator

Responsibilities:

• Configure and setup Cisco Firewalls, VPN Concentrators and Security appliances for access to vital Design.
• Setup and configure complex switching environments.
• Design, setup and configure complex wireless networking that supports open or secured access and maintain a thorough understanding of Local Area Networking.
• Assist in the design of multi-server environments including IP address schemes, DNS, WINS, Ether-Channel (Bonding), etc.
• Configure and install client and server network software for upgrading and maintaining network and telecommunication systems.
• Maintain multi-site network operations and software applications, to include operating systems and regular maintenance with facilities.
• Manage assigned work to deliver services in accordance with management direction.
• Respond to inquiries from staff to provide technical assistance and support.
• Supervise the administration of system and server related networks to ensure availability of services to authorized users.
• Troubleshoot malfunctions of network hardware and software applications to resolve operational issues and restore services.
• IP Routing, HTTP, VPN, Email Routing, SPAM, etc.
• Any other duties as assigned by management

Confidential

Windows Systems Administrator/Information Assurance

Responsibilities:

• Install and configure applications such as Windows OS, Retina, and Symantec Antivirus
• Conduct ACAS vulnerability scans on servers and workstations
• Create patch folders in SCCM with the latest vendor updates to get automatically pushed to Windows servers
• Review of the Vulnerability Management checklist in MICT for the IA Assessment
• Conduct SCAP scans for STIG compliance on local computers, remote workstations, and Windows servers
• Disable user admin accounts via Active Directory for repeated violators
• Diagnose and resolve problems/issues associated with IA vulnerability management (IAVM), and device patch management
• Perform vulnerability scanning and reporting on Windows 2008 servers
• Report violations/incidents for external hard drive devices. Follows the AFI and AFMAN IA policies and procedures.
• Build and maintain Windows 2008 R2 Servers
• Monitor and support Windows 7 workstations/ desktops
• Manage computers, GPO’s, and user accounts through Active Directory

Confidential

Customer Support Analyst

Responsibilities:

• Maintains smooth operation of multi-user computer systems, including coordination with network administrators.
• Set up administrator and service accounts
• Install system wide software and allocate mass storage space.
• Interacts with users and evaluates vendor products.
• Makes recommendations to purchase hardware and software, coordinates installation and provides backup recovery.
• Develops and monitors policies and standards for allocation related to the use of computing resources.
• Install, troubleshoot, configure, and manage Windows XP/7 workstations
• Troubleshoot all network related issues

Confidential, Fort Meade, MD

Network Engineer

Responsibilities:

• Provide 3rd tier level support for all incidents involving the core switches, routers, and firewalls in support of over 4,000 customers and 30 remote sites.
• Provided enterprise level information assurance support regarding securing the network perimeter through operations for the firewall, virtual private networks (VPNs), intrusion detection system/intrusion prevention system (IDS/IPS), and other network devices/software.
• Configure test lab environments to duplicate the Confidential network for piloting future designs, upgrades and modifications.
• Mitigate vulnerabilities found on network infrastructure devices.
• Manage, replace, and troubleshoot NAC Manager & NAC Servers.
• Install, configure, and test functions of Alterpoint and Smartpoint.
• Configure, troubleshoot, and maintain Cisco Bluecoat devices.
• Image and baseline McAfee Sidewinder firewalls
• Create and troubleshoot McAfee Sidewinder Firewall rules and Virtual Private Network (VPN) tunnels.

Confidential, Fort Meade, MD

Sr. Windows System Administrator/Information Assurance

Responsibilities:

• Maintains the integrity and security of Windows 2003/2008servers and systems using Retina Network Security Scanner.
• Update Retina with the SCCVI updates that are released by Confidential
• Sets up administrator and service accounts.
• Interacts with users and evaluates vendor products.
• Makes recommendations to purchase hardware and software for Dell products.
• Coordinates installation and provides backup recovery.
• Develops and implements testing strategies and document results.
• Provides advice and training to end-users.
• Provides guidance and work leadership to less-experience staff members.
• Maintains current knowledge of relevant technologies as assigned.
• Ensuring that SCCM updates are being pulled down and applied to network systems.
• Patch management remediated through SCCM.
• Managing and maintaining the backup servers to include disaster recovery implementation.
• New Server setups.
• Creating and managing group policies.
• Troubleshooting Server issues and planning and implementing recovery.
• Active Directory management and modifications such as adjusting IP pools, OU Groups, trusted connections, Group Policy
• Ensuring the servers are running in a stable and safe manner. (Server Security).
• Build, install, and maintain Windows Server 2008.

Confidential, Springfield, VA

Network Administrator

Responsibilities:

• Tier 1 & 2 Network Administration
• Perform health checks of the network infrastructure to insure connectivity
• Control access permissions and privileges
• Maintain switches and routers to approved software and hardware revisions
• Maintain and document all network configurations
• Monitor LAN and WAN circuits to verify overall system health using HP Network Node Manager
• Advanced configuration and troubleshooting of Cisco and F5’s load balancing devices
• Responsible for site-to-site IP Sec VPNs

Confidential

Systems Administrator

Responsibilities:

• Provide Tier 1 -2 support to customers across NIPR, SIPR, and CENTRIX networks
• Maintain complete accountability for monitoring and troubleshooting devices from Windows 2003-2008, XP, HP Unix, Sun Unix, Switches and router platforms; resolve functionality issues, troubleshoot system issues, and apply security patches to ensure maximized performance.
• Troubleshoot all network issues (i.e. Microsoft Outlook, Printers, shared permissions, SharePoint, etc)
• Add devices to the network, create user accounts, set up exchange mailboxes, and reset passwords using Active Directory.
• Use Active Directory to create and make updates to user accounts and permissions.
• Develops solutions to variety of problems of moderate scope and complexity. Contributes to the completion of organizational project and goals. Works as a service team to complete daily and monthly goals to achieve customer satisfaction.
• Performs networking functions on Cisco routers including clearing port security, enable/disable ports, and maintaining user interfaces. Updates MAC filtering logs to ensure user workstations are in compliance on government network.
• Make use of basic utilities, such as ping, trace-route, telnet, Secure Shell (SSH), address resolution protocol (arp), and Internet protocol configuration (ipconfig) in authenticating network status and switch operations using Putty.
• Demonstrated ability to install, and maintain managed switches in Camp Leatherneck network. Configurations include traffic management, system logging, and VLAN management
• Assisted with the upgrade and migration of over 1500 users from Microsoft Exchange 2007 to Exchange 2010
• Installed, monitored, troubleshot, and administered Windows 2008 servers which provide services to include the following: Domain Authentication, file and print, system management, database, DHCP, WINS, DNS, backup, imaging, user administration, and email services.
• Maintained and administered all network devices and servers from a subnet that resided in a DMZ to a private internal VLAN on core switches that support 10 GbE connectivity
• Ensure that network equipment complies with DOD Security Technical Implementation Guide (STIG) by running scripts to harden each network system
• Deployed software, system updates, Operating Systems (Windows 7), and applications packaging using SCCM 2007
• Troubleshoot and repaired all failed application pushes via SCCM 2007
• Acted as VTC Tech/Coordinator supporting Polycoms and Tandbergs

Confidential

Senior Systems Administrator

Responsibilities:

• Proactively provide Tier 2 hardware and oftware support to customers throughout Confidential Service Support Center and other remote locations on JWICS, SIPRNET, and NIPRNET networks across multiple domains.
• Pushes patches and updates out to servers using OpsWare
• Manages and assigns permissions on shared directories
• Troubleshoots and manages print servers
• Manages DHCP scopes
• Provide DNS, Active Directory and LDAP configuration. Configure hardware and software for servers, RAIDs, storage arrays, and library storage devices
• Provide functions such as hard drive removal, print server configuration, performance optimization, and research and installation of current patches, where applicable install and support printers and storage peripherals
• Manage group shares and home directories
• Utilized VMware to migrate servers from a physical to a virtual environment using VMware ESXi 5.0

Confidential, Crystal City, VA

Network Security Analyst

Responsibilities:

• Perform Network Security vulnerability scans using NIKSUN and HBSS.
• Provide operation of persistent monitoring, on a 24/7 basis, of all designated networks, enclaves, and systems.
• Responds to incoming phone calls to the IAPC and IC-IRC customer service numbers; ensures customer service/ satisfaction in line with Agency and Community policies.
• Interpret, analyze, and report all events and anomalies in accordance with defined procedures and directives.
• Manages and executes first level response and address to reported or detected incidents in accordance with SOP and directives.
• Responds to incidents and events within 30 minutes of notification.
• Notifies chain of command and prepares briefing slides, documentation in accordance with SOP and directives.
• Assists in troubleshooting and remediation of network or system events/deficiencies that are directly related to IA vulnerabilities.
• Perform network packet capture and analysis using Wireshark

Confidential, Crystal City, VA

Network Security Analyst

Responsibilities:

• Perform Network Security vulnerability scans using NIKSUN and HBSS.
• Provide operation of persistent monitoring, on a 24/7 basis, of all designated networks, enclaves, and systems.
• Provides monitoring and support, as directed in provisioned SOP, for all deployed systems and services. Provides recall processes as required.
• Responds to incoming phone calls to the IAPC and IC-IRC customer service numbers; ensures customer service/ satisfaction in line with Agency and Community policies.
• Initiates, responds, and reports discovered events in accordance with GPM provided SOP.
• Manages and executes first level response and address to reported or detected incidents in accordance with SOP and directives.
• Assists in troubleshooting and remediation of network or system events/deficiencies that are directly related to IA vulnerabilities.
• Perform network packet capture and analysis using Wireshark

Confidential, Washington, DC

Senior Systems Engineer

Responsibilities:

• Proactively provide Tier 1-2 hardware and software support to customers throughout Confidential Service Support Center and other remote locations on JWICS, SIPRNET, and NIPRNET networks across multiple domains.
• Set permissions, manage, and modify user accounts and group mailboxes using Active Directory.
• Assist customers with the procedures on how to restore, retrieve, and store emails using Outlook Enterprise Vault add-in.
• Ensure quality implementation of IS support policies, procedures and standards to conform to ITIL and build a high quality service team.
• Perform administrative and management duties using MS Exchange in support of users on LAN/WAN network.
• Utilize Microsoft Systems Management Server (SMS/SCCM) to remotely perform extensive network and system administration functions in Windows 2000/XP environments.
• Troubleshoot Solaris DODIIS Trusted Workstations (DTW) issues and accounts using Citrix interface.
• Recover users lost files and folders from server backups.
• Provide server support on SIPR/ HOCNET network to customers locally and abroad using terminal services and Net Ops.
• Act as a Trusted Agent/ CSTM, which is responsible for PKI enrollment; PIN retrieval; configuration of certificates; and revocation.
• Maintains and provides technical support for routers, NES, and hardware devices (i.e., scanners, drivers, and printers for remote sites) on the server.
• Troubleshoot various applications in support of Public Key Infrastructure (PKI) to include MS Office Outlook, Mozilla, Internet Explorer, A-Space, Adobe, etc.
• Perform and provide backup support for mail, application, and file servers through the utility of Veritas Backup ExecView.
• Train incoming personnel & customers to the level of expertise required to perform their duties.
• Collect, track, troubleshoot, and resolve local and wide area network, workstation, printer, and miscellaneous hardware and software problems.