Bachelor's degree in a field related to IT, computer science, or telecommunications. (Relevant years of experience will suffice as well)
Strong hands-on experience administering and troubleshooting production Linux environments
Candidates should be comfortable diagnosing services, processes, CPU/memory, storage and filesystems, networking, security, performance, and application-connectivity issues from the command line.
Strong knowledge of TCP/IP, routing, and switching, with hands-on experience troubleshooting VLANs, routing protocols such as OSPF and BGP, firewalls, NAT, VPNs, TCP/UDP connectivity, packet loss, latency, and routing problems.
Hands-on experience supporting and troubleshooting highly available or clustered production systems, including concepts such as quorum, failover, node communication, fencing, replication, synchronization, and recovery.
Demonstrated ability to investigate complex problems across multiple technology layers using Linux diagnostic tools, logs, monitoring systems, routing information, and packet captures with tcpdump and/or Wireshark.
Candidates should be able to methodically isolate whether a problem originates in the operating system, network, database, cluster, application, or an external dependency.
Expert Level
