Support our network infrastructure (multiple DCs and offices around the globe) and participate in network-related diagnostics (including the network subsystem of servers, CentOS).
Improve the network: configuration management and automation of BaU tasks.
Contribute in cloud networking, as we plan to transfer major part of the load there.
Proactively cooperate with system engineers and spread knowledge related to the network.
Communicate with service providers, including IP transit operators around the world.
Manage the IP address space, subnets, and VLANs.
Actively contribute to information security and ensure safe network perimeter.
Participate in the on-call shifts.

Experience in Linux system engineering: 3+ years, preferably rpm-based (RHEL, CentOS).
Great skills in diagnostics and fixing: from web server low-performance cases to general issues with traffic delivery.
Advanced knowledge: (L1-L4, L7) copper/optics, ethernet, static/dynamic routing.
Experience using IS-IS and BGP (OSPF would be a plus).
Extensive experience with Juniper vendor devices MX, SRX, QFX series
Experience with EVPN-VXLAN architecture
Experience in load balancing (CARP/IPVS/userspace/enterprise), packet filtering.
Experience in cloud networking: building and supporting.
Experience in 802.1X, 802.1Q, bonding
both serverside and network hardware side.
Experience using CDN and high load.
Great skills in diagnostics: IPv4 (IPv6 would be a plus), ICMP, TCP, UDP, DHCP, DNS.
Experience in finding the cause "from the switch port to the OS": NIC, Linux network stack, iptables, iproute.
Experience in DOS/DDOS prevention and mitigation.
Experience in working within XFN team.
Experience in supporting segmented heterogeneous network (300+ dataports).
Understanding of infosecurity, feeling the balance between "reasonable" and "secure".

Senior NetOps Engineer

Key skills