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IT Network Engineer

Company: CDW Corporation
Location: Vernon Hills
Posted on: November 22, 2021

Job Description:

The IT Network Engineer installs, configures, deploys, tests, maintains, monitors, and troubleshoots CDW's internal network components to provide a robust network communications platform. Key Areas of Responsibility: Design robust, highly-available, high performance network infrastructure involving multiple distributed systems (including data center, LAN/WAN/WLAN/SDWAN, Internet, Load Balancers, Firewalls, Cloud, Automation, and Network Management Platforms). Specific responsibilities include installation, configuration, administration, upgrade and maintenance of complex systems. Maximize network performance by monitoring infrastructure; troubleshooting network problems and outages; scheduling upgrades; collaborating with 3rd party support resources and fellow IT engineers on network optimization. Support all data services across the enterprise; analyzes bandwidth requirements and may provide proactive cost and capacity planning. Lead network projects to support capacity growth, upgrades and new products/features, and integration. Act as tier 1 and tier 2 support for all network issues; participate in on-call rotation. Must be available to work frequently during evenings and weekends. Up to 25% travel (domestic and international) is required. Participate in the diagnosis, isolation and resolution of network problems. Identifies and documents the root cause. Drive documentation of Standard Operating Procedure documents. Secure network system by enforcing policies; defining and monitoring access. Work closely with other departments/organizations and collaborates with other IT staff. Ensure the most cost-effective and efficient use of network infrastructure. Drives improvements in network process and standardization. Ensure compliance with change control processes and adherence to standards. Education and/or Experience Qualifications: Bachelor's degree or equivalent experience. 3 years experience in a technical role. Required Qualifications: Experienced with: Complex IT Infrastructure. Network design, planning, and implementing scalable, highly available, mission critical network infrastructures. Configuring and maintaining Cisco routers, switches, firewalls and wireless access points, as well as LAN/WAN and Internet Technologies. A variety of routing protocols including BGP, EIGRP, OSPF and RIP. IP Address Management (including DHCP, DNS, NAT). Layer 2/3 network concepts including spanning tree, VPC, VRF and VLAN design (example: Cisco Nexus/Catalyst switches). Advanced knowledge of F5 GTM, LTM, APM, Big-IP. Must have advanced troubleshooting skills (network devices and systems level). Experienced with Network Analysis, Sniffer tools, and network management platforms. Experience leading technical projects. Thorough understanding of network security aspects, common problems and solutions (ACL, firewall filtering, and VPN). Experience with change management control tools and policies. Experience with Network Monitoring and other network administration tools: SolarWinds, Prime, InfoBlox. Certification such as CCNP (Cisco Certified Network Professional) or CCDP (Cisco Certified Design Professional, provided by Cisco. Strong analytical, organizational and interpersonal skills. Excellent oral and written communication skills. Knowledge of and experience with the following skills: Cisco Routers, Cisco Switches, Cisco ASA Firewall, Wireless Access Points, Wireless Controllers, RADIUS, TACACS+, ISE, Layer 2/2, EIGRRP, BGP, Routing Protocols, NTP, SNMP, VLANs, VTP, VRF, Trunking, STP, HSRP, Ether Channel (PAgP, LACP), Multicasting, Whats up Gold, Wireshark, WildPackets, SolarWinds, Prime, OmniPeek, F5 Load Balancers, F5 APM, F5 Big-IP, Riverbed, MPLS, VPN, Windows Server 2003/2008, MS products, Meraki network devices and SDWAN. Familiarity with cloud based technologies such as Azure, AWS, and Google. Preferred Qualifications: A College degree in a technical track is preferred. 5+ years' experience in a technical engineering role is preferred. COVID-19 Update: CDW is committed to maintaining a workplace that is free of known hazards and to ensuring the safety, health, and well-being of coworkers and candidates for employment and their families, as well as the community. CDW requires all coworkers be fully vaccinated against COVID-19, with the only exceptions being a documented, legally required medical or religious accommodation. Prior to starting with CDW, successful candidates will be required to: (i) be fully vaccinated against COVID-19 and provide CDW with proof of full vaccination; or (ii) apply for and receive a medical or religious-based accommodation to be exempt from the mandatory vaccination policy.

Keywords: CDW Corporation, Arlington Heights , IT Network Engineer, Engineering , Vernon Hills, Illinois

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