Hafiz Rehman, Network Architect

Hafiz Rehman

Network Architect

QinetiQ

Location
United Kingdom - London
Education
Bachelor's degree, Bachelor of Science
Experience
13 years, 10 Months

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Work Experience

Total years of experience :13 years, 10 Months

Network Architect at QinetiQ
  • April 2015 to June 2016

• Working within a team of Network Design specialists on large scale IT transformation and data centre fit-out projects, with applied knowledge of industry leading practice to Produce High Level (HLD) and Low Level Design (LLD) documents.
• To provide cost effective network standards consistent with the business and technical strategy of the client. Analyse and scope migration plan, when required, based on client requirements. Development of implementation & test plans.
• Liaise with Implementation and Operations teams to ensure smooth translation of design to implementation and to support handover into production.
• To provide support and troubleshooting during build and implementation stage. Carrying out maintenance and changes to data network equipments, including the installation and replacement.
• Configuration, implementation and ongoing support of the PaloAlto PAN-OS 6.0 and 5.0 (5060, 5050, 5020 series) firewalls, Cisco ASA 5525-X and ASA 5545-X with FirePOWER Services, McAfee Sidewinder S4016 Firewalls version 7 and 8, Cisco Nexus 9000, 9300, 7009, 7010, 5500 and 2000 series FEX, Cisco Identity Service Engine (ISE 2.0), Cisco Catalyst 3750, 3850 Series switches, Cisco MDS 9200 series switches, Cisco UCS-6248 Fabric Interconnects, UCS-5108 Blade chassis with B-200 series Blades. F5 BIG-IP VIPRION 2400 Chassis (B2100 and 2150 Blades Version 11.6) Configuring virtual servers, pools, loadbalancing and persistence. Designing and implementing MPLS, VRF, GETVPN, on Cisco 3945E, 3925 ISR G2 and ASR 1001 routers. Using various routing protocols Static Routes, OSPF, BGP.
• Responsible for the Support and Administration of VDCs, Static VLANS, dealing with Layer2 and Layer3 switches, configuring spanning tree, HSRP, Port Security and Inter-VLAN Routing, VLAN trunking 802.1Q, configuring Ether Channels, vPC and VTP. virtual PortChannels.

Network Architect at Lockheed Martin
  • United Kingdom - London
  • August 2014 to March 2015

• Design and delivery of secure solutions meeting industry standard best practice. Produce High Level (HLD) and Low Level Design (LLD) documents to a high quality adhering to CGI standards. Review and improve security policies identifying business opportunities for CGI.
• Responding to new business client RFI's and refresh existing client infrastructures, being accountable for delivering the most cost effective solutions, achieving a high level of client satisfaction.
• To provide design and cost inputs during bid stages and existing client refresh reviews, liaising with 3rd Party vendors. To provide support and troubleshooting during build and implementation stage.
• Configuration, implementation and ongoing support of the Cisco ASA (5510, 5515, 5585 series) firewalls, Cisco Identity Service Engine (ISE 2.0), Cisco ASA 5515-X and ASA 5545-X with FirePOWER Services, PaloAlto PAN-OS 5.0 and 4.0 2050, 5050, 2020 series, FortiGate 1500D, 1000C, 300C, 100D Firewalls, Checkpoint NGX R67.10, R71.30 and R75.40VS GAIA firewalls. Cisco Nexus 7010, 5500 and 2000 series FEX, Cisco Catalyst 3750, 3850 Series switches. Designing and implementing MPLS, VRF, DMVPN, on Cisco 3900 and ASR 1001 routers. Using various routing protocols Static Routes, EIGRP, BGP.
• Responsible for the Support and Administration of VDCs, Static VLANS, dealing with Layer2 and Layer3 switches, configuring spanning tree, HSRP, Port Security and Inter-VLAN Routing, VLAN trunking 802.1Q, configuring Ether Channels, virtual PortChannel vPC and VTP. Troubleshoot and resolve data network and firewall issues.

Senior Network Engineer at Time Warner Cable
  • United Kingdom - London
  • September 2002 to July 2014

• Design, documentation, development, integration, implementation, testing and release of enhancements to, and maintenance of the current system network. Participate in TWC customer’s migration from legacy DC to the new DC. Reporting progress made to the Design Authority and Support Teams to ensure processes are coherent with the System design.
• To drive fault resolutions to speedy conclusions with minimal supervision whilst maintaining high personal standards of work. Ensure all incidents and service requests relating to network infrastructure raised by internal and external users are accepted, updated and resolved within agreed SLA’s. Attend project and change review meetings.
• Provide third line support across technologies, investigate and resolve Incidents, Problems and Major Incidents, working closely with other resolver groups. In depth troubleshooting of network, server and infrastructure connectivity issues. Establish track record of troubleshooting technical issues through to resolution. Provide both verbal and written handover to other team members to ensure awareness of issues and continuity of support.
• Installation, configuration and Support of Cisco routers, switches (Catalyst 6509, 6513, 3750, 3560) and Cisco Nexus 7010, 5500 and 2000. Using various routing protocols Static Routes, OSPF, BGP. Responsible for the Support and Administration of VLANS, dealing with Layer2 and Layer3 switches, configuring spanning tree, Port Security and HSRP, VRRP, Inter-VLAN Routing, VLAN trunking 802.1Q, configuring Ether Channels, Configuring VPC. Designing and implementing MPLS, VRF, DMVPN, on Cisco 7200 and ASR 1001 routers. Using various routing protocols Static Routes, OSPF, BGP.
• Implementation and ongoing support of the firewalls, Checkpoint Provider-1 NGX R67.10, R71.30 and R75.40VS GAIA (VSX-1 9070, Power-1 5070 series), Cisco ASA (5510, 5515, 5540 series), NetRemote encryptor VPN client, Juniper SSG5, SSG140, NS-5GT, NS-25 Secure Services Gateway Firewalls, Citrix Netscaler 5500 and 7500 MPX Loadbalancers. Monitoring and actioning Firewall Changes. Implementation and support of Websense web content filtering system to protect network resources from malware and prevent users from viewing inappropriate content.
• Provide third line support across technologies, investigate and resolve Incidents, Problems and Major Incidents, working closely with other resolver groups. In depth troubleshooting of network, server and infrastructure connectivity issues. Establish track record of troubleshooting technical issues through to resolution. Provide both verbal and written handover to other team members to ensure awareness of issues and continuity of support.
• Installation, configuration and Support of Cisco routers, switches (Catalyst 6504, 6509, 6513, 3750, 3560) and Cisco ACS. Using various routing protocols Static Routes, OSPF, BGP. Responsible for the Support and Administration of VLANS, dealing with Layer2 and Layer3 switches, configuring spanning tree, Port Security and HSRP, VRRP, Inter-VLAN Routing, VLAN trunking 802.1Q, configuring Ether Channels, Configuring VTP Modes.
• Implementation and ongoing support of the firewalls, Checkpoint Provider-1 NGX R67.10, R71.30 series, Cisco ASA (5510, 5540 series firewalls. Monitoring and actioning Firewall Changes.
• To participate in infrastructure and Network Security review projects to ensure that when handed over to operations they are supportable. Create and deliver build instructions and installation documentation.

Education

Bachelor's degree, Bachelor of Science
  • at UET Peshawar
  • December 2000

Specialties & Skills

Hobbies

  • sports, badminton, Footbal, Cricket
    Played sports at club level