Ahmet Bilge SARITAŞ

Vodafone şirketinde Network Consultant - Cisco On-Site Engineer

Istanbul, Türkiye

About

Experience

  • Network Consultant - Cisco On -Site Engineer at Vodafone
    Sep 2017 - Present · 8 yrs 10 mos

    *Know-how for Mobile Network Architecture(LTE,3G,2G,VolTE,SIP,SBC) *Coordinate with vendor specifics cases with Cisco technical teams, TAC. * IOS XR software upgrades for ASR series and NXOS upgrades for Cisco Nexus series *Managing a Data Center network including Cisco Nexus 9K/7K/5K/2K Switches, Juniper srx3600 FWs *Deep architectural and operational knowledge in IP Core and IP/MPLS technology. *Core Cisco GSR 12K/ 76xx Routers Software Migration from IOS to IOS XR Implementation *Call Center Network Design / Implementation *IOS Upgrade for network devices * Core PE Routers HW migration from Cisco 76xx to Cisco 9K and 9922 routers *Managing Vodafone CPN Core Network carrying mobile voice and data traffic including Cisco ASR 900x, Cisco 7609/7613, Juniper SRX5800, MX960 Routers *Managing an Office Network including a wide range of Cisco switches, Cisco ISE, 802.1x, WLC and APs platforms *Developing proactive precautions to ensure 7x24x365 availability of Vodafone CPN network carrying mobile services *Excellent TCP/IP Ethernet MPLS, BGP, MP-BGP, ISIS, OSPF, EIGRP Routing Protocols *Developing “PYTHON” and “ANSIBLE” scripts to check existing router / switch / firewall / wlc configurations,to retrieve portions of the configuration,to modify existing configurations and to build new configurations.

  • Network Consultant at Pointtech Bilgi Teknolojileri A.Ş.
    Mar 2016 - Aug 2017 · 1 yr 6 mos

    * Troubleshoot the routing , switching, security ,wireless and voice issues as level 2 and Level 3 engineering support * Immediate action and troubleshooting in case of network problems to ensure ultimate availability of network which carry customer Voice, Data Services, Data Center and the company intranet traffic * Provide hands-on support, maintenance, performance monitoring, and optimization on core network * Responsible for determining hardware/software product needs for customer network * Coordinate with abroad customer locations for any network changes, design or implementation * Coordinate with vendor specific cases with Technical Assistance engineers. * Provide planning and technical reports and risk analysis documents * Coordinate and planning Data Center Migration Project * Network Infrastructure assessment for customers * Call Center Network Configuration / Implementation / Operations * Knowledge of WAN & LAN: TCP/IP, Ethernet, PPP, STP, PVST, RSTP, MSTP, L2VPN, L3VPN, IP Services * Knowledge of Inter & Intra AS Routing: BGP, EIGRP, OSPF * Knowledge of IPSEC, GRE, SSL, S2S VPN * QoS implementation on wired and wireless network * Experience Hands-on; Cisco 760xx, ISR , ASR 1002-x , 29xx, 28xx Routers Cisco Nexus 3K, 65xx, 45xx, 49xx, 3850 , 3750, 3650,2960, Linksys and HP Switches * Firewall management on Checkpoint R77.30, Cisco 5585X , Sourcefire, Cisco ISE (responsible for access rules, NAT and VPN) * Wireless management on Cisco 5508 wireless controller, Flexconnect and Redundancy implementation * Monitoring tools (Spectrum,PRTG,Riverbed,Solarwinds)

  • Network Specialist Assistant at BDH - Bilisim Destek Hizmetleri
    Feb 2015 - Mar 2016 · 1 yr 2 mos

    * Troubleshoot the routing , switching, security ,wireless and voice issues as level 2 engineering support * Provide hands-on support, maintenance, performance monitoring, and optimization on core network * Responsible for determining hardware/software product needs for customer network * Coordinate with abroad customer locations for any network changes, design or implementation * Coordinate with vendor specific cases with Technical Assistance engineers. * Provide planning and technical reports and risk analysis documents * Provide technical support for IP services for a private network. Support requires physical layer, data link, network layer knowledge. * Monitor for, analyze, troubleshoot network problems within an operations center utilizing network management and monitoring tools. * Monitor the alarm conditions on the network to proactively identify and minimize disruption and impact to the network.