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Lead Systems Architect for startup ISP providing high speed wired/wireless Internet access in hotels, airports, restaurants and other places business travelers frequent. Focused on scaling existing architecture and preparing for new equipment via automated configuration management, monitoring, and database representation. Responsible for end-to-end design and programming of software, primarily in C and perl.

• Designed, implemented (in C) and documented heavily threaded network element pollers for uptime (ping) and service availability of SNMP, DNS, SMTP, HTTP, HTTPS, Radius, of over 40,000 network devices at over 10,000 locations, also using SNMPv3 context proxying for devices in 1918 space behind Internet facing routers.
• Designed and implemented database backend for monitoring system in both postgresql and oracle, using a perl loading system to present real-time network status, historical, statistical and SLA reporting, including integration with corporate trouble ticket system (by opening and maintining tickets and flagging chronic outages).
• Lead designer and implementor of new oracle network database design representing all layer1/2/3 nodes on network and their connections in data centers, HUBs and on customer premesis to furthur automate and manage network elements and services. Remains backwards compatible with existing wayport schema through oracle views and triggers.
• Organized and executed data center move of over 100 servers, routers, and corporate and VPN firewalls averaging less than one minute of outage per service.
• Temporarily managed group of 8 IT/Network Engineers after existing manager left company, including personnel issues, project management, managing relationships with other groups, salary adjustments and performance reviews.
• Wrote C plug-in modules for postgresql and java modules for oracle to add sql-accessible functionality.
• Designed and wrote net-snmp plug-in module in C for use in monitoring dhcp address pools and leases to allow for network operations staff to pro-actively address ip availability problems.
• Designed, impemented (in C) mail filtering software to prevent guest users from using Wayport systems to relay spam. Implemented as both on-property SMTP proxy and sendmail milter on customer mail relay system.
• Served as backup administrator for Cisco VoIP system, including call queing and voicemail services.
• Implemented Sun's flash system installation into existing install procedures, eventually integrating Sun's wan boot system for loading Solaris 9 without NFS.
• Designed, implemented and documented centralized user account management system for Solaris, Debian Linux, FreeBSD, windows XP, samba and router access via TACACS back ended with oracle.
• Ported Wayport's service from Debian Slink to Sparc/Solaris 8+Tasman Networks router integrating a complex system written in C, shell, perl, tcl, and using numerous network protocols.
• Designed, implemented and documented firewall/packet filter abstraction creating standard interface to ipfw/iptables/ipf and Tasman packet filter (SNMP) implementations.
• Designed, implemented and documented system providing automatic DNS zone generation from Wayport database, SNMP polling network devices and flat file configurations resulting in elimination of hand-maintained data, human error and time consuming manual updates.
• Developed and implemented standard Operating System environment (Vendor OS+COTS products+ open source software) and installation procedures for Solaris 8 and 9 used across corporate environment including deployment at Corporate HQ as well as on customer premises.
• Designed, implemented and documented generic abstraction layer to generate native Solaris, Debian and FreeBSD application packages from the same source code for easy management (addition/ removal/verification of install/etc).
• Reviewed Contracts and Proposals for Wayport between both vendors and Wayport and customers and Wayport.
• Implemented Kerberos Authentication in Oracle.
• Wayport liaison to WiFi Alliance including participation in technical WISPr committee, Public Access subcommittee, and attendance at quarterly meetings.

Lead Systems Architect and Manager/Mentor of 10 person team inside Server Operations department focusing on strategic direction for underlying Operating Systems and assorted add ons (such as Kerberos, and Embedded Services (mail/news/dns/radius). We focused primarily on design and programming of the "next generation" and new software/features for the Server Operations groups across US, Europe and Asia Pacific.

• Developed scalable Solaris 8 infrastructure for global implementation in worldwide Operating Companies. It is based around System V packages and a web centric install, combined with jumpstart.
• Worked with Sun to design nfs-less secure system loading process (later called "wanboot") including being first customer to present technological plans to Solaris OS Steering Commitee.
• Work with vendors (Sun Microsystems, Micromuse, Lucent) to set direction for products (Solaris, Netcool, various network management products).
• Designed and implemented computing environment for European Operations facility in Amsterdam, Netherlands.
• Work with Regional Operating Company system administration teams (Europe, Asia Pacific), as well as in-country operating companies throughout Europe.
• Implemented flat file access control mechanism for secure, authenticated, world wide management of file-based corporate data.
• Migrated systems from legacy "flat file" system to database-based system.
• Led Change Management group, including developing procedures and coordinated process to ensure peer-review, lowest-impact scheduling, and provide approval.
• Led team to develop Windows NT & 2000 infrastructure with Citrix Metaphrame support (v1.6-1.7).
• Hired personnel, performed performance reviews, balanced company needs -vs- employee needs (in-policy/out-of-policy salary adjustments, etc).
• Supervise bringing applications to production from development; led team to manage process; serve as liaison to development groups.
• Configuration and maintenance of internal Cisco routers and Fore ATM switched providing corporate communications, including packet filter access lists for corporate entry point.
• General unix/systems expert for providing advice on variety of unix issues.
• Inherited duties from Senior Systems Engineer position.

Lead Systems Designer focusing providing a standard, reproducible OS and open source software load. Provided advice and counsel on unix-based systems issues to rest of server operations and IT, as well as engineering development groups.

• Developed standardized Solaris 2.5.1 & 2.6 infrastructure, installation, and update procedures for deployment on approximately 1000 systems deployed in over 40 sites globally.
• Performed maintenance scheduled and coordinated with company-wide Change Management Group.
• Moved company from "small/startup" to "scalable" systems architecture.
• Modify Solaris source code as interim step to fix bugs prior to sun releasing a patch (supplying source code patches to sun).
• Inherited legacy software; ported/migrated to newer computing environments.
• Worked with in-company developers to bring third party and locally written software into production. Managed entire "to production" process for global network management and statistics collection systems.
• Implemented "production system guidelines" to quantify requirements for developers.
• Coordinated split of company wide unix support from one group to two groups in two corporate hierarchies. (internally -vs- externally focused groups).
• Implement 7x24x365 automated backup solution to replace manual system.
• Designed and Operated MIT Kerberos v5 infrastructure, including geographical diversity and migration from Kerberos v4 infrastructure.
• Coordinated and managed impact of major server moves from legacy data center to larger data center facility, eliminating down time wherever possible.
• Assumed ownership of account management software.
• Responsible for reliable operation of Network Appliance NFS filers.
• Second-tier escalation for internal server and network issues (24x7x365).

Systems programmer and network/system administrator for unix systems focused on support of University researchers, both strategic and tactical for general systems administration and integration of new architectures and operating system into existing infrastructure.

• Managed 400 node TCP/IP Ethernet, ATM and FDDI network consisting of SunOS4, Solaris2, Digital Unix, Ultrix, AIX, Irix BSD/OS, Windows NT/95, Macintosh systems; monitored and troubleshot network load.
• Installed vendor OS, unbundled, and third party products on unix systems; built and maintained open source software including X11R5-6.1, sendmail, BIND, xntp, s/key, ssh; maintained significant body of locally written software, and installed local hacks in vendor operating systems.
• Designed and supervised merger of two separate 100 and 300 node, 200 and 1000 user TCP/IP Unix networks into a single consolidated environment, resulting in continued individuality, centralized administration more efficient network management.
• Redesigned and implemented e-mail routing and user account software resulting in the the successful coexistence of several Internet domains, with the capability to easily add more.
• Designed environment and installation procedure for Solaris 2.5 and Digital Unix 4.0 workstations resulting in an identical environment across all workstations of the same type and a consistent environment with other Unix Operating Systems already in place.
• Designed/Implemented Database Application to manage equipment inventory, for UMIACS and other campus departments written in C, Tk/TCL, Postgres95, and perl.
• Integrated AFS client into 5 major unix OS platforms.
• Installed and configured sendmail and administered other Internet services including DNS, NFS, NTP, WWW, Usenet News, PPP dial-in service.
• Maintained site security by identifying and addressing potential security vulnerabilities and tracking security-related Internet resources (mailing lists, newsgroups, web sites). Responded to compromises by determining method of break-in, in order to close security holes through locally written fixes and vendor patches. Worked with CERT and other Internet administrators to help re-secure compromised remote sites.
• Installed, configured and maintained World Wide Web servers (Apache, CERN, NCSA) and web hierarchy, including space for user home pages. Wrote and maintained web pages and cgi scripts.
• Reconfigured and maintained multiple Usenet news servers for exchanging news with outside sites, and for on-site news reading.
• Specified and recommended workstation configurations, network hardware, storage, printers, and software for grant proposals, faculty and general purchases.
• Performed routine system administration tasks including backups and file restores, account installation and deletion, workstation installation, and operating system upgrades.
• Provided technical support for users, answered questions and troubleshot problems.

• Maintain heterogenous workstation environment at home (NetBSD/i386, NetBSD/sparc, NetBSD/sparc64, FreeBSD, Irix, Redhat Linux, Debian Linux, Win 98, Win XP, Win 2000 Domain Controller), with mail/web/otherwise services for personal Internet domains. MIT Kerberos v5 1.2.5 implementation including common authentication mechanism across windows and unix systems, as well as other misc open source software. Configured Certificate authority for SSL/IMAP and Apache/SSL web server.
• Established and maintained private domain, including DNS and electronic mail configuration.
• Designed and implemented system replication technique for replicating and installing production systems in development.
• Researched many and recommended one network management platform for IP-based gaming company deployed in diverse locations.
• Installed and configured AMANDA network backup software for enterprise-wide backups on system with tape robot.
• System installation, configuration, and debugging for company with remotely deployed systems.
• Designed and Configured Internet Connection for Hypertext '96 conference (designed network, configured routers, linked to ISP, and configured machines on network).
• Designed and implemented Faxback service for retrieval of stockholder proxy evaluation. (under Microsoft Windows 3.1)
• Designed and implemented check scan system that scanned check image, performed OCR, and parsed data on check. Incorporated archival of check information and check image. (under Microsoft Windows 3.1)
• Member of "core development team" of AMANDA, the Advanced Maryland Automatic Network Disk Archiver, http://www.amanda.org/, an open source network backup system.