John Nelson has over 15 years of experience in network and systems management. He has held roles such as network operations manager, senior IP network engineer, and network engineer. He has expertise in technologies such as Cisco, Linux, VoIP, and network monitoring. He aims to improve network performance, availability, and documentation of operations.
1. John Nelson
john@internoc.com
347-673-1725
Technical Highlights
With over fifteen years experience in Network & Systems Management, I have been personally
accountable for Network Engineering, Operations, and Support at Telecom and Internet Service firms
generating up to $7.5 million in annual revenues serving the small-medium business market. Usually
the sole or senior engineer/technician, I am typically responsible for not only troubleshooting,
engineering, and general support, but supervision and mentoring of other administrators and
technicians.
VoIP Asterisk, OpenSER, SIP, RTP, G.711, G.729
Networking Cisco, Mikrotik, Adtran, Zhone, Lucent, Linksys, Netopia, Netgear
TCP/IP, OSPF, BGP, HSRP/VRRP, DHCP, DNS, SNMP
SONET, TDM, ATM, Frame Relay, ISDN, DACS
802.11a/b/g, Motorola Canopy
Open Source Linux, Apache, MySQL, Bind, INN, Proftpd, Radius,
Sendmail, ClamAV, Squirrelmail, Procmail, Spam Assassin
GNU Mailman, Majordomo, WU-IMAP, Qpopper,
ICECast, ShoutCast, phpMyAdmin
Monitoring/Testing The Dude, NMIS, MRTG, Whatsup Gold, NagIOS, BERT
Wireshark/Ethereal
Operating Systems Linux/BSDI/Solaris, Windows NT/2000/2003/XP, Windows 95/98/ME
Languages PHP, Java Script, Perl, Shell scripting, HTML
2. Career Summary
Rural Broadband Jun 2008 – Apr 2009
Network Operations Manager
• Managed a multi-site 802.11a/b/g network providing Internet services to businesses and
residents throughout Yellowstone County. Responsible for Cisco backbone routers, Mikrotik
routers and bridges, wireless access points and backbone links, and Linux servers running DNS,
Mail, WWW, and RADIUS services.
• Maintained comprehensive network management system using Mikrotik's "The Dude".
Designed detailed network maps and documentation. Monitored availability of network nodes
and IP services on servers. Graphed utilization of network links, CPU utilization, and ping
response times. Sorted syslog messages by device types, link types, and geography.
• Supervised project to redesign outdated network architecture. Replaced multi-site spanning-tree
Ethernet with point-to-point IP connections & OSPF, reduced network outage times from
backbone link failures to 3 seconds. Rebnumbered network to ARIN assigned IP address space,
subnetted by PoP location. Installed 2nd Internet connection & BGP. Decentralized firewalling
and bandwidth control to isolate network interruptions eliminate single points of failure
Integra Telecom Oct 2007 - Apr 2008
OneEighty Communications Nov 2005 - Oct 2007
Sr. IP Network Engineer
• Headed team performing OAM&P (operations, administration, maintenance and provisioning)
of Integra Telecom's data network, delivering Internet, VoIP, VPNs, and Ethernet services to
nearly 40% of the small-medium business market (in Billings), government agencies, hospitals,
and schools. Managed IP network, redundant OSPF architecture, BGP Transit & Peering, end-
to-end QoS, ISP Services (web hosting, e-mail, DNS), Metro-Ethernet, and Tier III customer
support, and relations with vendors supplying IP equipment and services.
• Coordinated the initial rollout and OAM&P of Integra's VoIP "Hosted PBX" product as it grew
from development to production, deploying phones to new business customers on a weekly
basis. Led and mentored team that designed and implemented a redundant array of PBX servers
(Linux, Asterisk, OpenSER) and IP-PSTN media gateways to provide centralized PBX services.
• Engineered fault-tolerent IP and ATM networks and designed QoS policies to ensure high
availability and guarantee quality voice delivery from core servers to customer premises IADs,
Routers and PoE switches feeding IP phones. Created testing platform to verify end-to-end QoS
under load. Documented OAM&P procedures for all of the above.
• Assisted in central office engineering and OAM&P for physical layer transport services such as
Single & Multi-mode fiber-optics, WDM, OC3/DS3/DS1 Muxes, 3-1-0 DACs, SONET, and
leased carrier circuits (T1, T3, copper for xDSL) within central office and co-location facilities.
Supported maintenance, diagnostics and repair of non-IP voice services including VoATM,
TDM based services, and the Lucent 5ESS switch.
• Programed shell/php/perl scripts and installed open source software for performing backups and
monitoring logs, reachability, traffic utilization, call utilization, and telemetry data for routers,
switches, daxes, muxes, media gateways, Lucent 5ESS, and other central office equipment.
Performed protocol analysis for debugging and repair of all types of network problems across
Integra's production IP, internal IT, Telemetry, and physical transport networks
3. Netscorp Oct 2003 - Nov 2005
Network Engineer
• Managed network operations and vendor relations for a leading ISP in Laredo, Tx. Designed
and installed a city-wide broadband wireless network (Motorola Canopy and Lucent/Orinoco
802.11b) and a leased-line network of T1, DSL, ISDN, and Analog dialup, delivering Internet
services to a major portion of the small-medium business market. Administered Linux servers
performing user authentication, accounting, e-mail, web hosting, database management, DNS,
and other network services.
• Designed and maintained a customized e-mail system for managing thousands of e-mail
accounts passing hundreds of thousands of messages every day with virus scanning on
incoming and outgoing messages, spam filtering with Spam Assassin and other tools, RBL
Blocking, and client access via POP3, IMAP, and SquirrelMail.
• Designed IP Address tracking system, implemented open-source network monitoring systems,
automated IT and telemetry backups
Photon.Net May 2002 - Sep 2003
Contractor
• Led project to broadcast Lewis and Clark Pioneer football on the Internet using streaming MP3s
via IceCast. Negotiated broadcasting rights with Pioneer Radio.
• Managed all aspects of customer care and accounts receivables for web hosting, DNS services,
and dialup Internet access
Engage, Inc. Feb 2001 - Nov 2001
Contractor - Network Operations
• Re-engineered company's ad serving network to consolidate multiple data centers into a central
location. Reorganized BGP and IP traffic filters to improve speed and security. Improved
network stability and fault tolerance with OSPF, HSRP, and load balancers. Designed and
installed streamlined version of network to be sold as a separate product.
eBalance, Inc. Sep 2000 - Dec 2000
Senior Network Engineer
• Coordinated the documentation of an Operations Handbook and Disaster Recovery manual, a
key requirement for the sale of the company
4. Time Warner Telecom Sep 1997 - Apr 2000
Internet Systems Technician
• Maintained and provided tier III support for network services provided to ISPs and businesses
in San Antonio, Houston, and Austin. Managed inter-city network, Internet backbone
connections, hundreds of high speed (ISDN, T1, T3, Ethernet, Frame Relay, and ATM) internet
connections, and an array of Linux and Solaris servers providing DNS, Usenet news, e-mail,
web hosting, and other network services.
• Improved company image and product value by introducing circuit monitoring and providing
customers with important usage data. Customized network monitoring system to track
bandwidth utilization, BGP routing information, ICMP Echo times, and circuit errors across
hundreds of router and switch interfaces. Implemented proactive alert system allowing NOC to
respond to issues before customers could report service problems, dramatically improving
repair times
INTERNOC Oct 1994 - Aug 1997
Co-Founder, Director of Operations
• Founded company to provide outsourced network design and administration ISPs. Managed
modems and ISDN equipment, Cisco and Bay Networks routers and switches, CSU/DSUs, and
other networking equipment utilized by clients for the sale of Internet access to thousands of
dialup, ISDN, frame relay, and T1 users.
• Managed and trained staff of system administrators providing operational support to ISPs.
Recruited and trained administrators for employment with clients
References available upon request