Your responsibilities will include but not be limited to:
- You will actively monitor the hosting infrastructure;
- You will plan and schedule the infrastructure maintenance operations;
- You will prepare backup for everything related to your job;
- You will document and maintain an up-to-date documentation of the network infrastructure;
- You will participate, along with the Network Development Engineer, in the implementation of various network projects;
- TCP/IP protocol suite and IP addressing (VLSM/CIDR).
- Communication Standards at Physical Layer: 10BASE-T, 100BASE-T, 1000BASE-T, 10GBASE-CX4, 1000BASE-LX, 1000BASE-SX, 10GBASE-SR/LR/ER, 40GBase-SR/LR/ER.
- Layer 2 technologies: Ethernet, PPPoE, STP, RSTP, MSTP, VLANs, BPDU Guard, Loop Guard, Root Guard, VLAN ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard, Port Security, Storm Control, LAG/Etherchannel (PAgP/LACP), Trunking(802.1Q/ISL/DTP), Q-in-Q, CDP, LLDP.
- Layer3 technologies: IPv4, IPv6, BGPv4/MP-BGP, OSPFv2/v3, RIP/ng, FHRP (HSRP/VRRP/GLBP), LDP, MPLS (L2/L3 VPNs), Tunneling (L2TP, GRE, IPsec, SSL VPNs), PBR, ECMP, NetFlow, SFlow, NAT, IP forwarding mechanisms (CEF/Fast Switching/Process Switching).
- QoS technologies: IntServ/DiffServ/best-effort models, traffic shaping, traffic policing, queuing mechanisms, congestion avoidance mechanisms, packet marking.
- Firewall technologies: stateless and stateful packet filtering, application layer filtering.
- Network Services: NTP, DNS, RADIUS, TACACS, SNMP, DHCP.
- Network Packet Inspection Tools: tcpdump, iptraf, ngrep, Ettercap, Wireshark, netsniff-ng, iftop, jnettop, bwm-ng, nmap, nping, hping, fping, scapy.
- Linux/Unix experience is considered a plus.