OA

Olusegun Adekunle

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Letztes Update: 06.09.2022

Network and Security Analyst, Network and Security Analyst, Network Security Analyst

Abschluss: nicht angegeben
Stunden-/Tagessatz: anzeigen
Sprachkenntnisse: deutsch (verhandlungssicher) | englisch (Muttersprache)

Dateianlagen

Olusegun Adekunle-CV_20.doc

Skills

Firewall, IPSec, VPNs, CISCO ASA Virtual Firewalls, Firewall Contexts, VLAN, firewalls Checkpoint, Palo Alto, Cisco ASA, Corporate LAN, WAN networks, Configuration Manager, Firewalls, Layer 3 Routers, Layer 2, Layer 3, LAN/WAN, Smart View Tracker, IPS, VPN, F5 Load Balancer, Server Load Balancing, Juniper, SSL, Qualys, SIEM, VSX, ASA, Event Viewer, Routers, Switches, Web Application Firewall, Skybox, Network Security, WAN, Data Compression, penetration testing, Checkpoint, Visio, Cisco Routers, Cisco Nexus 7000 Series, Cisco Nexus 5000 Series, OSPF, BGP, LAN, F5 Big IP, MPLS, Backbone, Cisco 7604, Cisco 7609, Juniper MX480, VSS, router, Access Cisco Routers/Switches, signalling protocol, Spanning-Tree, RIP, Subnets, VLAN Interface, IP, LACP, IP routing, Juniper T1600, T640, T320, T4000, EIGRP, Cisco ASA 5520/5540/5550, data centre, IBM, Layer 3 MPLS, VLAN/Subnets, BGP routing, BIG-IP, PIX Firewalls, Cisco 3750 Series Catalyst, PoE, WEB Server, MAIL Server, PIX/ASA firewall, VRF, DMZ, Static, HSRP protocol, intrusion detection, Ethernet, Cisco Routers/Switches, LSP, ISIS, RIPv2, Telecommunication, AT, T WAN, Frame Relay, ATM, MPLS Cloud, HSRP, VRRP, ISDN, TCP/IP, OPSF, HDLC, PPP and Frame relay, Windows NT, NetWare, backups, CISSP, CCSE, CCSA, Cisco Certified, CCNP, Microsoft Certified, MCSE

Projekthistorie

01/2017 - 12/2018
Network and Security Analyst
Airbus

Airbus
* Installation, Configuration and Maintenance of Checkpoint GAiA (R77.20) used as External and
Internal Security Gateways.
* Installation, Configuration and Maintenance of Palo Alto Next Generation Firewall as Internal
Security Gateways,
* Deployment of Site to Site IPSec VPNs on Checkpoint security gateways (Gaia) and
troubleshooting using Smart View Tracker.
* Rule base design for security policies on Smart Dashboard and monitoring using Smart Monitor.
* Configuration and Maintenance of Palo Alto Next Generation IPS (Intrusion Prevention System),
* Configuration and Troubleshooting Firewall Rules issue and VPN on the security Gateways.
* Installation, Configuration and Maintenance of Bluecoat ProxySG for Web filter/Url Filter and
Content Filtering, controlling user access to the Internet..
* Installation, Configuration and Maintenance of F5 Load Balancer for Server Load Balancing and
company web url hiding behind the VIP.
* Installation, Configuration and Maintenance Juniper SSL VPN - Junos Pulse Secure Access for
the Company Remote access and business partner remote access.
* Compliance and Vulnerability Scan of Network Assets using Qualys Vulnerability Scan.
* Review daily reports from IPS (Intrusion Prevention System) for any critical/High threats and
Evasive Applications.
* Configuration, Tuning and Maintenance of QRadar SIEM. Analysing Q1Radar offenses and alerts as
they become available.

06/2016 - 12/2016
Network and Security Analyst
COOP Bank

COOP Bank

* Maintenance, Configuration of all Security devices for the COOP Bank Infrastructure.
* Configuration and Maintenance of Provider-1 Checkpoint GAiA (R77.20) VSX Security Gateways,
* Configuration of Multi Domain Manager for managing the CMAs, Nokia IPSO (R75) platform
* Deployment of Site to Site IPSec VPNs on Checkpoint security gateways (Gaia) and
troubleshooting using Smart View Tracker.
* Configuring Virtual Systems/Devices, VLAN interfaces for the different subnetwork on the
firewalls Checkpoint, Palo Alto, Cisco ASA for Corporate LAN and WAN networks
* Configuring and maintaining Palo Alto Firewall Virtual System (VYSYS) and physical Palo
Firewall using Panorama (Palo Alto Configuration Manager)
* Configuring the rule base, Object, objects Groups, Policy, and troubleshooting connectivity
issues on both the Checkpoint and Palo Alto
* Configuration and Maintenance of Palo Alto Next Generation Firewall as Internal Security
Gateways,
* Monitoring the VPN activities with the Smart View Monitor.
* Configuration and Maintenance of CISCO ASA Virtual Firewalls with CSM (Cisco Security Manager)
and Troubleshooting with Event Viewer.
* Configuration and Maintenance of F5 Load Balancer for Server Load Balancing and company web
url hiding behind the VIP. Maintaining the Certificates.
* Installation, Configuration and Maintenance of Bluecoat ProxySG for Web filter/Url Filter and
Content Filtering, controlling user access to the Internet.
* Configuration of Routers and Switches for LAN/WAN issues.
* Configuration and Maintenance of F5 WAF (Web Application Firewall) with ASM Policy.
* Configuration and Maintenance of Cisco Ironport WebProxy device for the Bank User
Infrastructure and connectivity to the Internet.
* Cisco Sourcefire maintenance for Intrusion Prevention on the COOP Bank Network.
* Review daily reports from IPS (Intrusion Prevention System) for any critical/High threats and
Evasive Applications.
* Good Knowledge of Skybox for Firewall and Network Access Analysis. For troubleshooting
Firewall Issues.
* In depth working experience of Network and Firewall related troubleshooting and diagnostic
issue in a complex network environment.
* Network and Security Project delivery experience.
* Firewall Rule Base Remediation using Skybox.
* Using Skybox for Compliances and Vulnerability Assessment issues.

10/2015 - 05/2016
Network Security Analyst
Toyota Financial Services Plc

Toyota Financial Services Plc

* Configuration and Maintenance of Checkpoint GAiA (R77) used as External Security Gateways.
* Configuration and Maintenance of Palo Alto Next Generation Firewall as Internal Security
Gateways,
* Deployment of Site to Site IPSec VPNs on Checkpoint security gateways (Gaia) and
troubleshooting using Smart View Tracker.
* Rule base design for security policies on Smart Dashboard and monitoring using Smart Monitor.
* Configuration and Maintenance of Palo Alto Next Generation IPS (Intrusion Prevention System),
* Configuration and Troubleshooting Firewall Rules issue and VPN on the security Gateways.
* Installation, Configuration and Maintenance of Bluecoat ProxySG for Web filter/Url Filter and
Content Filtering, controlling user access to the Internet.
* Installation, Configuration and Maintenance of Bluecoat Proxy MACH5 for WAN Optimization
through Data Compression, Catching and Acceleration.
* Installation, Configuration and Maintenance of F5 Load Balancer for Server Load Balancing and
company web url hiding behind the VIP.
* Installation, Configuration and Maintenance Juniper SSL VPN - Junos Pulse Secure Access for
the Company Remote access and business partner remote access.
* Compliance and Vulnerability Scan of Network Assets using Qualys Vulnerability Scan.
* Review daily reports from IPS (Intrusion Prevention System) for any critical/High threats and
Evasive Applications.
* Configuration, Tuning and Maintenance of QRadar SIEM. Analysing Q1Radar offenses and alerts as
they become available.
* Working with various teams to respond to a particular offense once determined its real, and
remediation action if required.
* Ensured that vulnerabilities identified either in Qualys Internal scanning or external
penetration testing are suitably mitigated and the documentation or accepted as residual
risks.
,

02/2015 - 09/2015
Network & Security Analyst
Prudential Financials

Prudential Financials, London, UK


* Managing all Perimeter and Core Security devices within the Prudential Corporate Network and Data
Centres with centralised managed network security platforms such as Provider-1 Checkpoint GAiA
(R77.20) VSX
* Deploying the Multi Domain Manager for managing the CMAs, Nokia IPSO (R75) and R55 Legacy
Security Gateways Palo Alto Firewall utilising Panorama, Cisco ASA, and Cisco Security Manager
(CSM)
* Configuring and maintaining Checkpoint GAiA (R77) VSX using the Multi Domain Security Management
* Configuring and maintaining Palo Alto Firewall Virtual System (VYSYS) using Panorama
* Configuring the rule base, Object, objects Groups, Policy, and troubleshooting connectivity
issues on both the Checkpoint and Palo Alto
* Configuring Virtual Systems/Devices, VLAN interfaces for the different subnetwork on the
firewalls Checkpoint, Palo Alto, Cisco ASA for Corporate LAN and WAN networks
* Deploying multiple site-to-site VPNs on Cisco ASA 5520s and Checkpoint IP690, 710 and 740
firewalls
* Creating Visio diagrams for LLD (Low Level Design) changes within the network and operational
troubleshooting purposes
* Installing, configuring and maintaining Cisco Routers and Switches at the Data Centre
* Configuring and maintaining Cisco Nexus 7000 Series as the Core Switches at the Data Centres for
the Corporate Network and Cisco Nexus 5000 Series for the branch offices
* Configuring and troubleshooting Routing Protocols including OSPF, BGP and Static to resolve
corporate LAN, WAN network issues
* Configuration and Maintenance of Bluecoat ProxySG for Webfilter/Url Filterand Content Filtering,
controlling user access to the Internet.
* Installing and configuring F5 Big IP for the (LTM) Local Traffic Management and APM (Application
Policy Manager)
* Utilising Solar Wind for Network Nodes Monitoring, Network Traffic and Packet Analysis
* Conducting Firewall Policy and Rule base Reviews Firewall change management and Firewall change
approval
* Working with Incident Management (IM) and appropriate escalation of incidents to vendors and
business partners
* Performing Vulnerability Assessment and Threat Detection across the Corporate Network and Data
Centre using Tufin Secure Track

03/2014 - 02/2015
NETWORK & SECURITY ENGINEER
Telefonica O2

Telefonica O2, Germany

* Delivered Network and Security Implementation and Support for the MPLS Infrastructure across the
O2 Network
* Configured, maintained and monitored Core/Backbone routers of O2 MPLS network, primarily Alcatel
7750, Cisco 7604, Cisco 7609 and Juniper MX480
* Configured and implemented Cisco High-end Routers, Switches including 6500 with Supervisor
Engine720 for the Data Centres, VSS - Virtual Switch Systems, FWSM firewall blade
* Configured and maintained Huawei Router NetEngine Series NE40, which formed the edge router
* Configured Layer 2 and Layer 3 MPLS on Core, Distribution and Access Cisco Routers/Switches
* Configured and troubleshot the MPLS signalling protocol LDP and RSVP on all core routers
* Configured Spanning-Tree Protocol, STP Root Bridge through priority configuration, and routing
protocols such as OSPF, RIP, and BGP
* Configured VLAN/Subnets, VLAN Interface, IP Addressing and VLAN Trunking with dot1Q encapsulation
Ether Channel with LACP protocol
* Configured and maintained Checkpoint (GAIA) R77.10 and Palo Alto 5000 and 2000 series firewalls
within the O2 Corporate LAN
* Applied rules and policy to the firewalls according to security policy of the Company
* Troubleshot and monitored connectivity issues on all firewalls
* Configured client access and blocked access as requested through the firewall
* Conducted Firewall Rulebase design and reviews in line with organisational policy, firewall
change management and firewall change approval

01/2011 - 12/2014
NETWORK & SECURITY OPERATIONS ENGINEER
Virgin Media

Virgin Media, Hook, UK

* Managed integrity of core network and security operations, and implemented and supported the
Virgin Media Network
* Designed and implemented IP routing, switching and security solutions on the Virgin Media
network, and created, reviewed and approved HLDs, LLDs and detail design of the Virgin Media MPLS
* Installed and integrated Alcatel SR12 7750, ESS7 7450, ESS1 and Alcatel Switches 6950s, and
configured and supported Cisco OSR, GSR, 7600 and 6500
* Integrated, deployed and supported Juniper T1600, T640, T320 and T4000 (backbone routers), M
series MX960, and EX4200 Layer 2 switches
* Implemented routing protocols including EIGRP, RIP, OSPF and BGP in the LAN cooperate network
infrastructure, and IPSec site-to-site (LAN-to-LAN) VPNs across branch offices
* Designed and integrated firewall Cisco ASA 5520/5540/5550, and issue resolved L2L and
site-to-site IPSEC VPN tunnels for video on demand (VOD) and content providers (CP)
* Troubleshot Fibre Link issues during new installation, including loop testing with third-party
providers and internal engineers
* Conducted audit, risk and business impact analysis of the existing corporate infrastructure, and
worked with Incident Management (IM), escalating incidents to vendors and business partners

01/2010 - 01/2011
Technical Project Manager
Vodafone D2

Vodafone D2, Germany

* Led on the execution of complex customer projects, providing end-to-end management, and
consistently delivering against tight timescale and budgetary constraints
* Initiated ordering of customer circuit, leased line, LAN/WAN and network equipment, and
maintained internal business systems used for project control, ordering and configuration
management
* Managed the logistics of third party Telekom and vendor deliveries of network and security
equipment, and the updating of Vodafone internal systems
* Oversaw customer installations and migrations once the requested circuit/line and network
equipment had been delivered to the customer data centre

01/2008 - 01/2010
Senior Network & Security
IBM/AT&T

IBM/AT&T, Germany & Denmark

* Provided network implementation and support for the MPLS data centre infrastructure at IBM
Frankfurt, and delivered LAN/WAN support to the various customer sites internationally
Technologies included:
Cisco 3800, 2800, 1800, 4900 and 6500 routers/switches; Supervisor Engine720 VSS; FWSM firewall
blade; Layer 2 and Layer 3 MPLS; VLAN/Subnets; VLAN Interface; VLAN trunking with dot1Q
encapsulation; ether channel with LACP protocol; OSPF; RIP and BGP routing protocols; Cisco
Firewall Service Module; Checkpoint Firewall R70; BIG-IP 5000 and 7000 Series F5 data centre
products; Local Traffic Management (LTM); Access Policy Manager (APM); Cisco ASA and PIX
Firewalls; Cisco 3750 Series Catalyst Stack; PoE Catalyst Switches
* In Denmark, operated onsite at IBM within a team implementing, managing and supporting IBM
network customers including Danske Bank, A.P Moeller, Accenture and Arla Foods
* Implemented and provided network support for the MPLS-labelled Cisco Data Centre at IBM, used by
its customers to connect to various services and applications such as WEB Server and MAIL Server
* Technologies included:
Cisco high-end routers/switches; PIX/ASA firewall; Layer 2 and Layer 3 MPLS; Virtual Routing &
Forwarding (VRF); IPSEC on VPN Gateways; firewall service module (FWSM) DMZ; routing protocols
OSPF, EIGRP, RIP and Static; HSRP protocol; intrusion detection service (IDS)

01/2007 - 01/2008
NETWORKS FAULT & PROVISIONING ENGINEER
Virgin Media

Virgin Media, UK

* Contributed to the design and Support of Ethernet Dedicated Internet Access (EtherDIA) and
Ethernet Managed Internet Access (EtherMIA) over an MPLS network for Virgin Media customers
* Technologies included:
VLL; Dedicated Internet Access (DIA) and Managed Internet Access (MIA); Cisco Routers/Switches;
Alcatel Lucent SR7750 Service Router; Virtual Routing and Forwarding (VRF); AS-Autonomous System
and Route Distinguisher; OSR/GSR Cisco Multilayer Switches; Alcatel Multilayer Switches ESS 7450;
Label Switched Path (LSP), Label Distribution Protocol (LDP) and RSVP; routing protocols BGP,
ISIS, OSPF, EIGRP and RIPv2; Ethernet over MPLS (EoMPLS); WWP LE-46, LE-311 and LE-417 network
termination units

01/2004 - 01/2007
NETWORK ENGINEER
AT&T (Telecommunication)

AT&T (Telecommunication), Portsmouth, UK

* Maintained AT&T WAN for customers throughout the EMEA and for enterprise corporations globally,
enabling AT&T to connect enterprise clients worldwide over Frame Relay, ATM and MPLS Cloud
* Technologies included:
AT&T MPLS EVPN networks; Data, Video & Voice networks; HSRP, MHSRP and VRRP; IPSA Orchestream;
ISDN BRI and PRI; TCP/IP, BGP, RIP, EIGRP, OPSF, HDLC, PPP and Frame relay

01/2003 - 01/2004
NETWORK PROJECT IMPLEMENTATION MANAGER/COORDINATOR
AT&T (Telecommunications)

AT&T (Telecommunications), South Birmingham (UK)

* Headed up the execution of customer provisioning/enablement projects, including managing customer
installations and migrations

01/2000 - 01/2003
SYSTEM ADMINISTRATION & NETWORKING CONSULTANT
Allied Worldwide Ltd

Allied Worldwide Ltd, UK

* Worked with MTV Europe in Germany and other European countries for this consultancy company that
provides LAN and WAN implementation services to large networks

01/1998 - 01/2000
SERVER ADMINISTRATOR / DESKTOP SUPPORT
Vodafone

Vodafone, Dublin, Ireland

* Delivered Windows NT rollouts and completed PC desktop builds, TCP/IP network and NetWare NDS
administration, backups and file restores for 1,500 Vodafone users supported across a split site
Professional Certifications
* Certified Information Systems Security Professional (CISSP)
* Check Point Certified Security Expert (CCSE)
* Check Point Certified Security Administrator (CCSA
* Palo Alto Firewall (Accredited Certified Engineer ACE)
* F5 Class-based Trained (F5 Application Delivery Fundamental 101)
* Blue Coat Certified Proxy Administrator (BCCPA)
* Cisco Certified Network Professional (CCNP)
* Juniper Networks Certified Professional (JNCIP)
* Alcatel-Lucent Scalable IP Networks (SRC))
* Microsoft Certified System Engineer (MCSE)

Reisebereitschaft

Weltweit verfügbar
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