Network Engineer

at Collabera
Location Dallas, TX
Date Posted February 12, 2020
Category Default
Job Type Full-time



  • Performs day-to-day administration of the network and telephony infrastructure. Escalates to senior administrators and engineers
  • Resolves LAN and WAN issues at datacenters an remote locations
  • Configures routers, switches, firewalls, load-balancers, wireless access points, SD-WAN appliances in break/fix and new deployment scenarios
  • Coordinates installations of new equipment with local site contacts
  • Upgrades software on routers, switches, SD-WAN appliances
  • Performs moves-adds-changes for VoIP locations
  • Under supervision, evaluates solutions to support the networking needs of business initiatives
  • Audits and documents the network infrastructure to ensure adherence to company standards
  • Works a ticket queue to ensure issues are being resolved in a timely fashion
  • Qualify, troubleshoot, and verify vendor claims regarding new routing, switching, and security hardware and software in preparation for deployment in our production environment
  • Works with vendors to ensure cabling/equipment installations are completed per business requirements
  • Participates in a rotating on-call schedule




  • Knowledge of the OSI model
  • Cisco Wireless/Switches/Routers/Firewalls
  • Experience with functions of devices such as routers, switches, firewalls, wireless access points, VOIP phones and servers
  • Experience with layer 2 switching concepts/technologies: MAC addresses, VLANs, Trunks, STP
  • Experience with IP addressing, subnetting and ARP
  • Knowledge of routing protocols such as: OSPF, EIGRP, BGP
  • Knowledge of remote-access protocols: SSH, Telnet
  • Knowledge of AAA protocols: TACACS and RADIUS
  • Knowledge of network discovery protocols: SNMP, Netflow, CDP and LLDP
  • Knowledge of Access Control Lists (ACLs)
  • Experience with common network troubleshooting tools such as ping, traceroute, nslookup
  • Experience with of Quality-of-Service (QoS)
  • Knowledge of VPNs: Remote-Access and Site-to-Site
  • Troubleshooting tools for packet capture: Wireshark/Netflow/etc.
  • Knowledge of copper and fiber transport medias and their associated standards


Nice to have:

  • CCNA (Cisco Certified Network Administrator)
  • CCNP (Cisco Certified Network Professional)
  • CCVP (Cisco Certified Voice Professional),
  • Scripting Powershell/Python/BASH
  • SD-WAN, Cisco ACI, Cisco Nexus Switches, Cisco Wireless, F5 Load-Balancers, Cisco ASA, Bluecoat, ClearPass Policy Manager, Cisco ISE, Netscout, SolarWinds, Wireshark




  • High School Diploma or GED required. Bachelor's degree in Computer Science (or related) or equivalent work experience required
  • Cisco Certifications
  • 2 years of experience hands on networking
  • At least 5 years of Internet Protocol (IP) based networking experience such as ISP (Internet Service Provider)

Cisco, Firewalls,F5,ASA

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