Senior Network Systems Engineer
March 2001 - February 2002, Archway Digital Solutions, Mountain View, CA

• Development and integration of a new computer system architecture consisting of high density multi-blade enclosures, diskless multi-processor blades, gigabit ethernet interfaces with TCP off-load co-processors and embedded gigabit ethernet switching. System includes integrated dynamic configuration, provisioning and management capabilities.
• Developed requirements for network configuration and performance, system management and administration, system monitoring and availability.
• Specified default switching topologies and routing designs for multi-enclosure configurations.
• Defined test scenarios and conducted analysis of processor blade, gigabit ethernet co-processor and switching functions.
• Developed customer use cases including: multiprocessor gene and protein sequencing using BLAST software and a test deployment of a customer application for highly parallel image enhancement of archival motion picture prints.

Principal Network Engineer
August 2000 - February 2001, Amazon.com, Seattle, WA
Senior Network Engineer
September 1999 - August 2000, Amazon.com, Seattle, WA

• Technical lead of network engineering team responsible for design and implementation of production datacenter, website and worldwide corporate networks.
• Member of engineering oncall rotation with final responsibility for all aspects of internal and external network function.
• Duties include capacity planning, routing design and refinement in a multihomed IP environment using primarily BGP and OSPF.
• Charged with planning, coordination and execution of router, switch and systems maintenance in a highly available production setting.
• Worked closely with security engineering group on all aspects of design, configuration and deployment of packet filters, firewalls, intrusion detection systems and VPNs.
• Responsible for providing periodic consultation to systems, database and software groups on network design, utilization, performance and security.
• Designated liaison for tracking problem resolution and new feature requests with primary network hardware vendor.
• Member of team responsible for evaluating vendors and new networking and load-balancing devices.

• Manager of 10 person system administration team.
• Management responsibilities include both technical and group leadership roles.
• Systems Engineering responsible for installation, maintenance and improvement of heterogeneous UNIX server environment utilized for the management and/or provision of ANS services including: network management and operations, customer web hosting, internal and customer DNS service, network tool development, network statistical and billing data collection and network security auditing and reporting.
• In addition to UNIX servers, team also responsible for installation, support and backup of approximately 75 desktop UNIX workstations used by network engineering and operations staff.
• Specification and purchasing of a variety UNIX server/workstation/laptop systems, commercial software licenses, battery backup systems and air conditioning equipment.
• Responsibility for team building, recruiting and hiring, annual performance reviews and salary adjustments.

• Member of engineering team providing real-time engineering support for national DS3 and ATM-based IP backbone, multiple virtual private data networks and large-scale dialup modem infrastructure.
• Real-time responsibilities include approximately 20 hours per week resident oncall in the ANS NOC, Cisco, Bay Networks and GATED router configuration, inter-ISP routing problem resolution, troubleshooting of DS0, DS1, E1, DS3 circuits, configuration of FDDI, HSSI, Ethernet, V.35 and ISDN interfaces and devices.
• Skill set for oncall engineering work includes self-sufficiency balanced with teamwork, remote problem determination and resolution, customer service and vendor relations, ability to maintain composure in critical situations.
• Non-oncall projects include network management programming, capacity planning, participation in specification and performance testing of high-speed routing and communications hardware, large account technical coordination, mentoring of new operators and engineers.

• Technical co-lead of team providing UNIX system administration support for U-M departments. Supported hardware platforms include Sun SPARC, IBM RS, DEC MIPS, NeXT, HP and SGI.
• Responsibilities include development of secure, scalable and automated system administration tools and procedures for use by team members and other U-M system administrators.
• Direct system administration duties include OS and application software installation and upgrade, system security, resource management, distributed file systems, distributed maintenance, upgrade and backup systems, sendmail and DNS configuration and account management.

• Network fault isolation and repair coordination on both LANs and WANs including: Ethernet, FDDI, IBM token ring, Pronet80, X.25, low-speed leased lines and clear-channel DS1 and DS3 circuits.
• Local and remote hardware troubleshooting, software installation and maintenance on production network routers including: IBM RT and RS6000, Cisco, Proteon and DEC.

Skills and Areas of Knowledge

 
 IP Networking

• Router, Switch and Firewall Configuration
• Cisco 12000, 8540, 8510, 7500, 7200, 4000, 3600, 2600, 2500, 675 routers
• Cisco 6500, 5500, 5000, 2900 switches
• IBM RS6000 AIX/gated routers (NSFNET)
• Bay Networks BCN routers
• Cisco PIX and UNIX host-based firewalls
• Routing Design and Troubleshooting
• Protocols: BGP, OSPF, EIGRP, IGRP, RIP
• Multihomed customer solutions
• Customer-requested traffic analysis and consultation
• Packet filtering and firewall construction
• Backbone metric tuning and congestion avoidance
• Inter-ISP routing problem resolution
• Network and application protocol analysis
• Redundant LAN design using router, switch and host-based failover mechanisms
• Data Circuits
• OC-3, DS3, DS1, E1, ISDN, DS0 including fractional and inverse-multiplexed variants
• POS, ATM, HDLC, PPP, SLIP
• Extensive troubleshooting experience of outages using loops and data test patterns
• Knowledge of telco methods, resources and service structure
• Acceptance testing and monitoring for new and restored data circuits
• Replication and resolution of data-pattern sensitivity problems
• Dialup Services
• Hardware and software configuration of USR Total Control Hubs
• Server-side PPP configuration
• ISDN configuration on Cisco, USR and Ascend hardware
• ISDN BRI troubleshooting
• LAN
• Gigabit Ethernet, FDDI, Fast Ethernet, Ethernet including switched variants
• Hub and switch installation and configuration
• Troubleshooting, packet sniffing and analysis

• UNIX Variants
• Linux
• AIX
• Solaris
• SunOS 4.X
• 4.3 BSD/IBM AOS/BSDI
• AT&T SVR4
• Programming Languages
• C
• perl
• awk
• sh
• csh
• General Skills
• Remote distributed management
• Security auditing
• Software package porting and building
• Version control system management
• Kernel configuration and tuning
• System performance analysis and tuning
• Installation and Maintenance Services and Daemons
• System Services: DNS, FTP, NTP, TELNET, TFTP, X11
• Web Services: HTTP
• Mail and News Services: IMAP, NNTP, POP, SMTP
• Security and Access Services: Kerberos, SSH, Radius

• Business Relations
• Customer service and technical support
• Vendor management
• Conflict resolution
• Communications
• Excellent written and verbal communication skills
• Experience developing in-house training materials
• Technical writing experience
• Touch typist at 75-80 wpm
• Troubleshooting
• Enjoy resolving challenging technical problems
• Trained in creative problem solving
• Varied hardware and software background
• Extensive remote problem determination and resolution experience

Education

University of Michigan, 1986 - 1989, Computer Engineering

Traverse City Senior High School, 1986 Graduate
 

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