Prestigious Global Trading Firm, located in the Chicago Loop, is currently seeking a Senior Network Engineer with strong Cisco Networking and trading/brokerage environment experience.Responsibilities:- Architect, implement, monitor, support and troubleshoot a global low-latency trading network including Routers, Switches, Firewalls, and voice technologies. - Maintain network security through proper configuration of Firewalls, proxies, and VPN devices.- Order and install exchange, WAN and Internet connectivity, as needed/approved.- Achieve close to 100% uptime through good design, thorough monitoring, careful and consistent change management, and immediate response to any outage.- Manage projects and deliver on time with periodic status reports to management.- Work collaboratively with other members of the global systems team to achieve firm goals.- Provide support off-hours and remotely when needed.- Maintain and improve systems documentation.Experience: - Minimum 5 years supporting Cisco Routers and Switches, including 6509.- Minimum 5 years experience supporting WAN technology, preferably including exchange connectivity and global networks.- Minimum one year experience supporting Firewalls, preferably Cisco.- Experience supporting trading networks strongly preferred.- Cisco IP phone/Call Manager experience would be helpfulKnowledge:- IP, TCP, UDP, ARP, DHCP, DNS, EIGRP, OSPF, PIM, and IGMP protocols.- Multicast design and troubleshooting.- Cisco Router and switch configuration and management skills.- Network monitoring including syslog and SNMP.- Troubleshoot network problems with protocol analyzer.- Basic knowledge of Windows and Linux.- Desktop productivity tools such as Excel and Visio.Education/Certifications: - Bachelors degree in Computer Science, Engineering or a related field is required.- CCIE or strong CCNP preferred. To Apply to this job go to http://www.GadBall.com or click here