senior network engineer

توضیحات آگهی

We are seeking a highly skilled Senior Network Engineer to design secure and support our enterprise network infrastructure The ideal candidate brings strong expertise in Cisco technologies NX OS IOS XE ASR deep knowledge of routing and switching hands on experience with firewalls and wireless systems and a solid understanding of network security and monitoring best practices Key Responsibilities Design deploy and maintain core network infrastructure across switching routing firewalls wireless and WAN environments Troubleshoot complex technical issues perform root cause analysis and ensure high availability resilience and optimal performance Implement and enforce network security controls including segmentation firewall policies VPNs MFA 2FA and L2 L3 security mechanisms Manage and optimize wireless environments Ruckus Mikrotik Ubiquiti Maintain routing policies and high availability technologies such as VPC LACP load balancing VRF etc Operate tune and improve monitoring and observability systems SNMP telemetry Prometheus Grafana Splunk PRTG Zabbix SolarWinds Produce clear technical documentation network standards and diagrams and actively participate in knowledge sharing with the team Required Qualifications Skills 3 years of hands on experience in network engineering or a similar technical role Strong experience with Cisco NX OS IOS XE ASR and Firepower appliances Deep knowledge of L2 L3 L4 networking VLANs STP ACLs QoS NAT VRFs VPC EtherChannel LACP Hands on experience with firewalls Fortigate Mikrotik pfSense OPNsense Expert level understanding of VPN and tunneling technologies IPsec WireGuard OpenVPN SSL VPN L2TP PPTP ZeroTier Strong experience with routing protocols OSPF EIGRP BGP Experience with WAN SD WAN load balancing and other HA solutions Fundamental knowledge of Linux administration Wireless expertise with Ruckus Mikrotik Ubiquiti etc Understanding of MFA 2FA access controls and network security principles Knowledge of VoIP performance requirements jitter latency QoS Preferred Skills Network automation tools Ansible Terraform Python Understanding of HTTP HTTPS REST APIs and general web communication concepts Familiarity with PKI certificates and encryption Experience integrating logs with SIEM tools Understanding of microservices and container networking Docker Kubernetes Exposure to ITIL or similar service management frameworks تهران تهران ساعی توانیر تمام وقت ازکی کارشناس ارشد جنسیت تفاوتی ندارد بیمه