Position: Network Engineer
Company: Sentrium S.L.
Category: Sysadmin
Experience required: 3y
English level: intermediate

**Required professional skills and experience:**
Experience with VyOS is perfect. If you are an active community member and have made bug reports or pull requests, please give us links.
Experience with one or more popular network equipment vendors devices (switches, routers, or firewalls): Cisco, Juniper, MikroTik, etc. will do.
Understanding L2: Ethernet, VLAN, L2 security, LAG/EtherChannel/bonding.
Understanding L3: IPv4, ICMP, ARP.
Understanding L4: TCP, UDP.
Tunneling protocols (L2TP, OpenVPN, GRE, IPSec - at least one).
Understanding switching and routing principles.
Dynamic routing protocols: BGP, OSPF.
HA and load balancing technologies (L2 or/and L3, L4).
Application protocols: DHCP, NTP, DHCP.
Monitoring and analysis: SNMP, Syslog.
Understanding Linux firewall (iptables).
Experience in Linux administration and maintenance.

Experience with some of these will be an advantage:
Understanding: MPLS, IPv6.
Understanding DNS ecosystem.
Dynamic routing protocols: OSPF, BGP communities, flowspec.
Understanding firewall (iptables): chains, rules, actions, NAT.
*Flow protocols (sFlow, NetFlow, IPFIX), Network Monitoring Systems.
Understanding encryption using private/public keys principles.
L2 security: Spoofing, DHCP Snooping, traffic segmentation, etc.
Experience with software: hypervisors, DNS server, web servers, load balancers, SQL servers (any).

**Responsibilities:**
Communicating with clients.
Network infrastructure design and setup.
Troubleshooting existing networks.
Testing the VyOS routing operating system
Deploying VyOS in clients networks and migrating existing nodes to VyOS
Test proposed features and participate in the implementation