Mehdi Zamanizadeh

Experience

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  MobinNet Telecom

  Sept 2015 - Jun 2017

  Call Center Support
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  Zitel

  Jun 2017 - Dec 2018

  NOC Tier1 Engineer

  - Maintenance and troubleshooting of Layer3 Network, working with BGPv4, MPBGP, MPLS VPN, MPLS L2VPN, OSPF - Maintenance and troubleshooting of Layer2 Network, working with STP(MST), FHRP, VTP

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  Pazh network

  Nov 2018 - Feb 2023

  Network Engineer

  • Designing, implementing, and troubleshooting Cisco security firewalls in more than 50 enterprise companies.• Work on Cisco StealthWatch as a network detective solution and boost up network visibilities up to 70%.• Implement and troubleshoot Cisco Firewall Modules like AMP, IPS, SI, and other modules.• Configure and optimize Snort V2 and V3 rules.• Deploy File Policy/AMP on FTD to prevent malicious file exchange in network.• Work on enterprise WAN technologies like GRE, DMVPN, and IPSEC.• Configure and troubleshoot GRE tunneling and secure tunnels with IPSEC.• Configure and troubleshoot DMVPN (Phase 1, 2, and 3) and HA configuration.• Implement and optimize routing protocols over tunnels.• Design, configure, and troubleshoot STP, FHRP, and switching security.• Deploy virtualization technology (Stackwise, VSS, and Stackwise Virtual).• Provide solutions for device selection and network design.• Work with a variety of Cisco Routers, Switches, and firewall platforms.• Prepare documentation, including HLD, LLD, and TRD. Show less

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  Pars IT

  Oct 2020 - now

  Network Engineer

  • Configure and troubleshoot BGP on Nokia 7750 Service routers and Cisco IOS XR in a service provider environment.• Configure MPLS L3VPN and L2VPN on Nokia SR-OS and Cisco ASR routers.• Implement full RSVP signaling for MPLS and configure MPLS TE on Nokia 7750 Service routers.• Deploy QoS on Nokia routers for three types of customers, Gold, Silver, and Broze.• Implement FortiGate Firewalls and FortiManager in enterprise-level networks.• Configure and troubleshoot AWS EC2, VPC, TGW, Load Balancer, and Auto Scaling.• Configure and troubleshoot Security features on PaloAlto, Fortinet, and Cisco Firewalls.• Configuring VYOS open-source routers with implementation of IPSEC and BGP on it. Show less

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  TOSAN (Banking and Payment Solutions Provider)

  Feb 2023 - now

  Network Engineer

  • Configure and troubleshoot FortiGate, Juniper ISG and SRX, Cisco ASA, and FTD firewalls.• Manage IPsec and GRE tunnels over Cisco routers, FortiGate, and Juniper SRX firewalls.• Implementing OSPF and EIGRP routing over GRE and IPSEC tunnels and steering traffic based on tunnel preference.• Configure and troubleshoot F5 Big IP load balancer LTM module which include initial setup, HA configuration Virtual server configuration to distribute the load among server pool and increase service efficiencies up to 50%.• Implement security measures, including IPS, SSL Offloading, and Reputation-based security mechanisms.• Work on network optimization solutions for WAN routing redesign and optimization of traffic flows by altering routing protocols metric.• Prepare HLD, LLD, and TRD documentation.• Configure Cisco Nexus 5K and 9K switches, including vPC and the related protocol like HSRP and STP for seamless operation.• Update and patch network assets.• Configure, optimize, and troubleshoot EIGRP and OSPF on campus LAN and WAN routing.• Maintain and traffic engineer BGP routing in dual-homed service provider designs and achieve to 95% service availability. Show less