Networking Engineer

Grubhub is the nation's leading online and mobile food ordering company dedicated to connecting hungry diners with local takeout restaurants. The company’s online and mobile ordering platforms allow diners to order directly from more than 45,000 takeout restaurants in over 1,100 U.S. cities and London. Every order is supported by the company’s 24/7 customer service teams. Grubhub has offices in Chicago, New York and London.

* Conduct short- and long-term network architecture and planning to meet current and expanding business requirements. * Design and implement both LAN and WAN network systems and controls. * Hands-on experience configuring Cisco routers, switches and firewalls. * Analyze network activity and network problems to discover and prevent systematic errors. Recommend network design changes/enhancements for improved systems availability and performance. * Troubleshoot, diagnose and resolve network problems. Research, analyze, and recommend the implementation of software or hardware changes to rectify any network deficiencies or to enhance network performance. * Work with IT Support staff to provide support and troubleshooting for network connectivity or related network issues for the user community. * Capacity planning: analyze facilities bandwidth requirements and system interdependencies. Develop capacity planning models. * Disaster recovery: ensure planned testing activities are performed and technical criteria are met. * Evaluate services and hardware provided by vendors and VARs, recommend changes, and assist with contract and purchasing negotiations. * Manage and deploy system monitoring and management tools such as Splunk, SolarWinds Orion, Wireshark, Nagios, and NMAP. * Design and provide network services, including firewalls, IPS/IDS, DNS, DHCP, web security, TACACS+, VPN and 802.1x NAC.

* Bachelor’s Degree from an accredited college or university. * Six to ten years of relevant network design and management experience. * Relevant Cisco Certification, such as - Certified Network Professional (CCNP), Cisco Certified Network Associate (CCNA), Cisco Certified Internetwork Expert (CCIE), Wireless (CCNP Wireless), or Network Security (CCSP) * Deep knowledge of TCP/IP, NAT, IPSec VPN tunnel configuration and troubleshooting (IKE1/IKE2), SNMP, and MPLS. * Experience with Cisco ASA firewalls, Palo Alto networks firewalls, BigIP F5 load balancers, Cisco Catalyst switches, Cisco NX-OS, Brocade switches, VMWare vcenter or other virtualization platform, basic linux skills. **Got These? Even Better:** * Experience with AWS or another cloud platform. * Understanding of distributed systems. * Familiarity with Palo Alto Firewalls. * Strong network security design background * Network forensics experience (Wireshark, Microsoft Network Monitor, etc) * Wireless design and implementation experience (Ruckus) * Software defined networking (vyos, zebra, quagga, etc)