Ola. Benson Adefiyiju 

                                                   14205 Downdale Ct.

                                                  Laurel, MD 20707                                         

                                                   Phone:  (240) -687-9955

                                                  E-mail: oadefiyiju@hotmail.com

 

 

Career Objective:                            Network Support Engineer

 

Strengths and Abilities:

·  A skilled professional with significant experience in information systems;

·  Outstanding troubleshooting and resolution skills.

·  Perform in-depth application analysis.

 

Education:

 

University of Maryland, Baltimore County,

Masters of Professional Studies in CyberSecurity                2014 – Date

 

University of Maryland University College                               2003 – 2007

Bachelor in Information Systems Technology

 

Prince George’s Community College                                          1999 - 2002

AAS Degree in Computer Information Systems – Networks

 

ASM Technical Education Center                                               1998 – 1999

Computer Repair &Networks Configuration Systems

 

 

Certifications:

 

CCNP                            (Cisco Certified Network Professional: IP Switched Network, IP

                                           Routing, and Troubleshooting & Maintaining Cisco IP Networks)        

CCNA                            (Cisco Certified Network Associate)

 

Security+CE   Certification (Security configurations & Implementations)

 

CCNA Security           (Installation, troubleshooting, and managing of Network devices/Appliances)

 

Cisco ASA Firewall   (Implement and maintain of Cisco ASA adaptive security appliance).

Juniper Firewall          (Configuring, Installation, and Managing Juniper Firewall)

 

F5 Load Balancer Cert. (F5 BigIP LTM Essential & Advanced Certifications)

 

MCSA (2003 Messaging Server)     (Microsoft Certified Systems Administrator)

 

MCSE (2003 Servers)                        (Microsoft Certified Systems Engineer

 

 

Clearance: Top Secret Clearance

                   :TS/SCI with Polygraph

                   :Q Clearance

 

Special Skills:

·  Fundamentals and implementation of network security.

·  Knowledge and skills necessary to design a security framework for small,
medium, and enterprise networks using Windows technologies 

·  Knowledge and skills necessary to install, configure, manage, and support the Windows
Active Directory service.

·  Knowledge and skills necessary to install, configure Network Devices: Cisco’s ASA Firewall 5500 series, Juniper Firewall device, F5 Load Balancer, IBM DataPower, etc.

 

 

 

Professional Experience:

 

Access-STG-inc (FBI Contract)

September, 2012 –Date

 

Senior Network Engineer

 

·  Managing F5 Web traffic load balancing functions, and manipulation procedures along with sizing and capacity planning based on a high availability

 

 

·  Review changes for potential load balancing related impacts, and recommend improvements.

·  F5 Load balancing troubleshooting and incident resolution, including failover management, packet and log analysis, and escalation to additional resources as appropriate to ensure timely resolution

·  Complies with company's change management control process & participates in COOP procedure, and  DCDR exercise

·  Responsible for operational documentation of end to end load balancing

·  Works with the Application teams, and external vendors (F5) for chronic issues, bugs, feature enhancements

 

·  Manage the server and global load balancer topology
 and work with application groups to determine optimal application traffic design

 

·  Troubleshoot load balancer and related application issues
 Identify, design and implement flexible, responsive, and secure technology services

 

·  Participates in the diagnosis, isolation and resolution of network problems. Identifies and documents the root cause. Proactively identify potential issues in the production environment and help recommend potential solutions.

 

·  Setup and management of Cisco switches and routers- Examples include but not limited to 1800, 2800, 3745, 3750, 3800, 3550, 4500, 6500, and NEXUS

·  Remote access (i.e. Firewalls, VPN) configuration and management - Cisco ASA firewalls.

·  Managing and maintaining Network security and intrusion detection - Cisco IPS.

·  Configuration and troubleshooting of CISCO Routing Protocols, especially BGP, OSPF, EIGRP, MPLS, Multicast, QoS, NAT, CDP, and RIP, etc.

·  Participate in COMSU tier 3 operations 24/7 on call support for any potential network related issues.

 

TechSystems (Pentagon Contract)

September, 2014 –Date

 

 

NOC Engineer

 

·  Monitors alarms and faults and  make sure problems are resolved quickly and "work-around" are developed, if necessary.

·  Monitor alarms, faults, and real time performance metrics for Cisco routers, switches, servers, and other SNMP-enable devices using network monitoring tools as: TIVOLI

·  Defines trends and monitor anomalies, identifies anomalies and looks for degrading trends and performance metrics that may exceed the limits of Service Level Agreements.

·  Performs Root-Cause Analysis.  

·  Performs tests and diagnostics at the Enterprise Level

·  Performs troubleshooting with set of diagnostics tools

·  Detects design and engineering issues and recommends solutions to resolve reported problems.

 

 

National Navy Medical Center, Bethesda.

January, 2012 – September, 2012

 

Senior Network Engineer

       • Primary responsibilities include physical/operational equipment configuration and     installation on LAN/WAN

 

·  Updating Cisco firewall access control lists (ACL) due to Information Assurance Vulnerability Alert’s (IAVA) and to conform to Navy Cyber Defense Operations Command (NCDOC) requirements

 

·  .Provide support for all networking equipment on the NNMC network. This includes, but not limited to support of Cisco 3750 & 4570 switches, Cisco 7206VXR & 6509 routers,

·  Nortel switches: 5500, and 8000 series

 

·  Troubleshoot circuit problems, configure interfaces for new circuits, configure and replace circuit hardware such as DSU/CSU’s and repeaters and test circuits at remote sites.

 

·  Work with MHS, MCiS and DISA to troubleshoot circuit outages until resolved.

 

·  Upgrading Cisco router IOS’s to eliminate security vulnerabilities

 

·  Daily Nortel and Cisco switch configuration

 

·  Resolving trouble tickets

 

·  Patch and test cables for new and existing sites

·  Fiber testing, and shooting

 

.
 

 

Department of Homeland Security (Transportation Security Administration)                                                                                                  October, 2010 – January, 2012

 

Senior Network Engineer

 

·  Provide network supports for the Technology Division, Office of Transportation Threat Assessment and Credentialing (TTAC),

·  Configuring, Installations, and Managing Cisco ASA firewalls devices (5500 series and PIXs).

·  Monitor network performance and troubleshoot problem areas as needed  using network monitoring tools – Cisco SolarWinds

 

·  Managing remote access/VPN including providing remote users’ support. 

·  Managing and maintaining Network security and intrusion detection – Using Cisco IPS, ASA firewalls, Juniper firewalls.

·  Provision of network configurations and cablings for the AIX team, and other departments in TSA.

·  Managing, configuring Cisco, and Nortel Switches.

·  Setting up and configuration of Access rules on both the Cisco’s and Juniper firewalls.

 

Summit Technologies Inc., Harris Corporation, Census Bureau Project                 March, 2009 – October, 2010                                                

Information Technology Engineer III

·  Responsible for Enterprise Management System (EMS) functioning and for ensuring the availability, reliability and performance of the FDCA IT enterprise.

·  Responsible for providing second and third tier technical support and analysis to field engineers/technicians, customers and users.

·  Support the Contingency Response Team (CRT) and the Continuity of Operations (COOP).

·  Work closely with the Disaster Recovery Management Team (DRMT) in emergency system recovery operations.

·  Monitors alarms and faults (network, help desk, NOC/SOC and Data Processing Centers) along with the subcontractor to make sure problems are resolved quickly and "work-around" are developed, if necessary.

·  Monitor alarms, faults, and real time performance metrics for Cisco routers, switches, servers, and other SNMP-enable devices using network monitoring tools as: CACTI, Open-view, and Hyperic HQ. 

·  Defines trends and monitor anomalies, identifies anomalies and looks for degrading trends and performance metrics that may exceed the limits of Service Level Agreements.

·  Performs Root-Cause Analysis.  

·  Performs tests and diagnostics at the Enterprise Level in coordination with the subcontractor to resolve problems quickly.

·  Performs troubleshooting with set of diagnostics tools

·  Detects design and engineering issues and recommends solutions to resolve reported problems.

·  Provide support and implementations for Microsoft Active Directory, Exchange servers, and Cisco devices (Switches, Routers) and F5 Technology for load balancing.

·  Work with iNET communications and Sprint Networks, detecting and resolving troubles with the PRI (Primary Rate Interface), and Circuits for the Cisco Switches and Routers respectively.

·  Generating and tracking trouble tickets using Remedy tracking Application (Remedy IT Service Management for the Enterprise) 

·   Installation and configurations of CISCO IP Phones.

 

 

National Archives & Records Administration (NARA)              July,2008 – August, 2010

 

Network Engineer

 

·  Monitor network performance and troubleshoot problem areas as needed Network using network monitoring tools – Cisco SolarWinds, and Peregrine.

·  Manage remote access/VPN including providing remote user support. 

·  Managing and maintaining networking topologies and multiple MPLS VPN links. 

·  Setup and management of Cisco switches and routers- (IOS & Catalyst OS switches) - Examples include but not limited to 1800, 2800, 3745, 3750, 3800, 3550, 4500, 6500.

·  Remote access (i.e. Firewalls, VPN) configuration and management - Cisco ASA firewalls.

·  Managing and maintaining Network security and intrusion detection - Cisco IPS.

·  Provide in-house network setup (Cisco routers and switches), design, and troubleshooting

·  Setup and maintaining Polycom Video Teleconferencing equipment. 

·  Configuration and troubleshooting of CISCO Routing Protocols, especially BGP, OSPF, EIGRP, MPLS, Multicast, QoS, NAT, CDP, and RIP, etc.

·  Designing, implementing and supporting infrastructure DMZs.                                                              

 

·  Designing and implementing MPLS-VPN architectures

 

·  Designing and implementing  load balancers F5 BigIP (F5 – LTM)                                                              

 

·   Installation, configurations, and maintenance of high end Cisco switch platforms (6500, 7600, and etc), ASA and PIX firewalls.

·  Installation and configurations of CISCO IP Phones.

 

·   Infrastructure design and global configuration changes: Deployed networks with the use of the best practice of the enterprise campus network model, which is inclusive of desktop users connected via IP phones through their QoS-capable components.

 

·   Deployed VOSIP (Voice over Secured Internet Protocol) tools that militate against denial of service attacks SPAM over Internet Telephony (SPIT), Voice Tapping, Toll fraud, Packet loss etc.

 

 

 

·  Managing network infrastructure health using  Network Mgmt tools and Network Service Protocols (SolarWinds, HP Peregrine, Syslog, SNMP, NTP, DNS, DHCP)                                                           

 

 

·  Generating and tracking trouble tickets using Remedy tracking Application (Remedy IT Service Management for the Enterprise)

 

 

 

 

Computer Science Corporation:                     January, 2007 – July,2008

 

     Servers & Messaging (Exchange Servers) Engineer

 

·                 Creating Users Account using Active Directory Services set up new Workstations, with necessary configurations. Prepare standard login scripts and establishing network access protocols to enable Users to gain local or remote access.

 

 

·   Implementing and Managing Microsoft Exchange Servers.

 

·   Installing and Configuring SAN (Storage Area Network) software to connect Windows Server to SAN: Device driver, and dual-patching; installation of software which is required for connection to the Hitachi SAN.

 

·  Administration and Configuration of VERITAS Netback up, and maintenance of Virtual Tape Library and Robot Tape Library (LTO1-3). Backing up and Restoring Users’ data using VERITAS Netback up Software

 

 

·   Design and Implement Disaster Recovery procedures for all the servers

 

·   Apply patches, kernel/OS tuning, and performance troubleshooting skills

 

·   Maintain Citrix and Nfuse for remote users: Publishing and Troubleshooting Applications, Users’ profiles, remote and Citrix farms’ issues.

 

·   Responsible for providing daily operations support and maintenance for enterprise and file servers, Netware and Windows based servers, approximately 75 servers

 

·  Perform OS/software troubleshooting for all new server builds, server rebuilds, and server configuration changes

 

·   Install all required security patches, using Marimba Deployment Manager; and requested supported software

 

·   Utilize environment monitoring system to proactively monitor issues and independently respond to failures as reported by the system

 

·   Stage new server builds/rebuilds and all associated hardware in designated staging area(s).   Rack/un-rack servers and associated hardware per process

 

 

Dimensions Health Services:                                February, 2004 – January, 2007

 

      Server/Network Engineer

 

·   Creating Users Account using Active Directory Services set up new Workstations, with necessary configurations. Prepare standard login scripts and establishing network access protocols to enable Users to gain local or remote access.

 

·   Implementing and Managing Microsoft Exchange Servers.

 

·   Network Drawings and Documentations using MS Visio.

 

·   Installing, Configuring and Maintaining and Supporting Windows 2003 Servers

 

·   Backing up of Users’ data using backup tapes

 

·   Troubleshooting and resolving LAN and WAN connectivity using Network diagnostic tools

 

·   Maintain Citrix for remote users.

 

·   Supporting remote users using VNC and Remote Management Software

 

·  Responsible for server engineering, design and technical project management.

 

·  Manage server projects and provide recommendations in the design, testing, and implementation of server configurations and infrastructures.

 

·   Perform basic server network configuration or configuration changes per process or standards

 

·   Perform basic client/server side network troubleshooting and break/fix

 

·   Perform server configuration changes per process and deploy applications to pre-production and production environments

 

·  Perform OS/software troubleshooting for all new server builds, server rebuilds, and server configuration changes

 

·  Install all required IPAKs, security patches, and requested supported software

·  Utilize environment monitoring system to proactively monitor issues and independently respond to failures as reported by the system

 

 

U.S Department of Treasury (IRS)               May, 2003 – February, 2004

 

         IT Customer Support Technician

·   Provide Tier 2 Hardware and Software help desk customer support for IRS employees, and Contractors.

 

·  Provide daily Help Desk support resolving trouble tickets.

 

·   Install, test, troubleshoot, repair, maintain, and upgrade desktop and laptop computers and peripheral equipment.

 

·   Perform hardware and software diagnostics, fault isolation and coordinate repairs and/or replacement of faulty equipment.

 

·   Installing, repairing and upgrading desktop computers, which include software installation and imaging, and final configuration and testing.

 

·   Replacing hard disk drives, CD-R\RW drives memory, video cards, NIC cards, internal/external modems, and power supplies, etc

·  .

·   Install, troubleshoot, and repair of local, networked printers, scanners, and fax equipment.

 

·   Install, configure, and troubleshooting PDA-Personal Digital Assistant.

 

·   Prepare standard login scripts and establishing network access protocols to enable Users to gain local or remote access.

 

·   Review, validate, and standardize problem resolutions for inclusion in the problem resolution database.

 

·   Participate in the planning and delivery of a full range of User support services to the organization; install, configure, upgrade, and troubleshoot any hardware and software components; present formal and informal training assistance to customers; and report, respond to, and resolve customer requests.

 

·   Install, support Windows NT, and upgrade to Windows XP.

 

·  Install, configure, and troubleshoot Microsoft Outlook, configure Users’ mail.

 

 

 

 

 

 

U.S. Department of Labor                           May, 2002 – April, 2003

          Server Deployment Engineer

 

·   Served as a Team member responsible for Windows XP and Server 2003 Deployment to standardize the Nation’s Department of Labor’s Computer systems.

 

·  Upgrading of Windows NT Server and 2000 Server to Windows 2003 Server. Position includes 95% travel to all Regional DOL offices over the continental US, and Puerto Rico.

·   Migrations and Maintaining of Novell Netware Operating Systems to Microsoft Active Directory.

 

·   Migrations and Maintaining of Novell GroupWise Email to Microsoft Exchange.

 

·   Implementing and Managing Microsoft Exchange Servers.

 

·   Desktops, and Laptops Norton Ghost Imaging, using Multicasting, and Manual setup with Ghost Boot disks, and CDs.

 

·   Migrating Users’ data from the old PCs and restoring it to the new PCs. Configuring Microsoft Outlook, and setting up Mailboxes on the Exchange Server.

 

·   Installation and Configuration of ISDN PCMCIA card on Notebook Computers for Remote Users.

 

·   Installation and Configuration of Axis, and Intel Print Servers. Configuration and Installations of both Local, and Network Printers, using both Scripts, and manual installations.

 

·  Configuring, and Troubleshooting CISCO Routers.

 

 

Prince George’s Community College: November 2001 – May, 2002

PC Software & Hardware Support

 

·   Provided PC Hardware & Software Support for more than 1000 Users.

 

·   Installation, & Troubleshoot Novell 6.0 (Client, & Sever) Win.95/98/XP O/Systems.

 

·   Installation, & Troubleshoot Novell GroupWise, and other Windows based Apps.

 

·   Installation, & Troubleshoot Local, & Network Printers.

 

·   Installation, & Troubleshoot Network Hubs, Routers, Gateway, and Switches.

 

 

 

Philimon   Research & Training                           

Center                                                                                    1999 - November 2001

PC & Networks Technician             

 

·   Performed Data / Files Migration from Win. NT Workstations to Win.2000 Servers.

 

·   Upgraded Workstations’ Windows 95/NT to Windows 2000.

 

·   Performed Troubleshooting of Win.2000 O/Systems, Outlook 2000, & MS Office

 

·   Installed & Troubleshooting Local and Network Printers.

 

·  Installation and configuration of Cisco Switches, and Routers

 

 

 

 

References will be furnished upon request.