David Closson

David Closson

1620 E. Maple Ave. #22
El Segundo, CA 90245
(213) 270-3866

My Resume:
About Me:
  • Educated, experienced, honest, loyal and task oriented IT professional seeking employment as a Senior Systems/Network Administrator or IT Director position. I have both Unix and Windows environment expertise as well as network engineering expertise. I function efficiently under pressure while having the patience to thoroughly complete and document tasks. I learn rapidly and have the discipline to self train.
  • I have spent the last 10 years engineering/administrating the network and core systems of 3 Internet Co-location facilities

Summary of experience:

2006-present  Alchemy Communications, Inc.  Data Center/Co-Location Services
Job Title: Director of IT LAX and Senior Network Engineer

  • Design, document and deploy datacenter co-location solutions and manage Network Operations Center staff
    • Cisco IOS routers and multi-layer switches, Cisco PIX & ASA firewalls
    • Foundry multi-layer switches
    • Foundry ServerIron load balancers - http, smtp, dns, sql
    • F5 Big IP load balancers - http, smtp, dns, sql, global server load balancing
    • Juniper Netscreen firewalls including high availability
    • Fortigate firewalls including high availability
    • MRV DWDM based MAN for sharing bandwidth between data centers and providing layer 2 cross connects between data centers for customer co-location geographic diversity and redundancy.
    • iBGP, eBGP between 6 Internet providers and downstream AS's
    • Multi-area OSPF routing within various datacenter AS's.
    • VPN access via IPSec, L2TP and PPTP on Linux/Unix, Windows, Juniper, Cisco, Fortigate, Sonicwall and various SOHO appliance platforms
    • Firewall/NAT policy design and implementation on Linux, Windows, Juniper, Cisco, Fortigate, Sonicwall and various SOHO appliance platforms
    • Linux system administration including Xen, VMWare, Virtuozzo, CPanel, Plesk, Apache, MySQL, PostGres, Sendmail, Postfix, Exim, Qmail, BIND, Samba, IPTables, Kernel and module builds, service optimizing and hardening
    • Windows 2000, 2003 Active Directory design, clustering, security and maintenance
    • Exchange Cluster 2000, 2003 design and maintenance
    • MSSQL 2000, 2005 cluster design and maintenance
    • PERL and shell scripting for system administration, data replication and network testing
    • Manage NOC staff hiring, task assignment and work schedule
    • Provide mentoring to junior NOC staff

2005-2006  OneInterface.net Network Engineering (Fresno, CA)  Network Engineering Firm
Job Title: Network Engineer

  • Design, document and deploy enterprise network solutions for educational organizations and private corporations.
    • Cisco IOS routers and switches, CatOS based switches, Cisco VPN access concentrators, Cisco PIX firewalls
    • MAN / SMF, ATM / DS3, IMA / T1 bundles, Frame Relay / T1, T1 / PRI, Wireless solutions
    • iBGP,  eBGP, mBGP, PIM, multi-area OSPF, HSRP, VLAN, Multiple Spanning Tree
    • Extensive scalable Ethernet subnet and Network addressing design
    • PIX OS / Linux IPTables firewall rule design
    • VPN access with IPSec, L2TP, and PPTP
    • Network infrastructure design training
    • PERL / Shell scripting for configuration generation, configuration changes and general network testing.
    • Linux virtuals with XEN virtual machine monitor and VMware
    • Postfix / Exim / Sendmail based email and Anti-UCE solutions
    • BIND name server, Apache web server, MySQL database, Samba file/print share, and ISC DHCP custom builds

1999-2005  Goldrush World Access (Angels Camp, CA) Internet Service Provider
Job Title: Systems/Network Administrator

  • Design, maintain and secure diverse IP network consisting of analog dial-up, ISDN, dedicated ISDN, DSL, T1, T3, ATM, LAN, IPSec/L2TP/PPTP VPN and WLAN connections.
    • Setup and manage Cisco IOS based routers and switches.
    • Setup and manage a variety of SOHO wired and wireless network equipment including Linksys, DLink, Sonic Wall and Watchguard
  • Design, maintain and secure Linux, BSD Unix, Windows 2000 Server, Windows 2003 Server, indows 2003 Small Business Server and Microsoft Exchange Server.
    • Microsoft Active Directory and Terminal Server management.
    • HTTP (IIS and Apache), SMTP, POP3, IMAP, DNS, RADIUS, DHCP and SNMP service management and troubleshooting on multiple platforms
  • Design, maintain and secure Microsoft SQL and MySQL databases.
  • Develop, maintain and secure HTML, PHP, ASP, Visual Basic, C++, Javascript and Unix shell scripts.
  • Microsoft Windows 2000 & XP operating system support and Microsoft Office suite application support.
  • Macintosh operation system support up to OS X.
  • PC & Macintosh hardware repairs.

1996-Present  Self Employed IT Consultant
Job Title: Systems/Network Consultant

  • Windows/Mac desktop and server software technical support and hardware repair.
  • Windows 2000, 2003, 2003 Small Business Server setup and technical support.
    • Microsoft Exchange, IIS, Active Directory, Security and Acceleration, SQL
  • Microsoft Office applications support and training.
  • LAN and WAN network setup and consulting. Home/office ISDN, DSL, Cable modem and T1 based Internet connectivity setup and technical support.
  • Linux and BSD Unix Internet server/services setup (e.g., FTP, HTTP, DNS, DHCP, SMTP, POP and IMAP).

1996-1998  NetSeller (Riverside, CA) OEM Computer sales and service
Job Title: Head Technician and Network Administrator

  • Design and maintain IP/IPX network consisting of: fast Ethernet switches, Microsoft proxy server, NT server, Linux HTTP & FTP server, IP router and T1 Internet connection.
  • Custom Windows NT Server and Redhat Linux server design and support.
  • PC/Mac software technical support and hardware repair.
  • Creation simple visual basic applications and HTML documents.
  • Microsoft Office applications support and training.
1995-1996  Blackwolf Computer (Riverside, CA) OEM Computer sales and service
Job Title: PC Technician
  • PC Windows desktop software technical support and hardware repair.
  • IP/NetBEUI and IPX/SPX networking support in Windows and Novel Netware environment.
  • Home and small office Internet support.
  • Applications support including Microsoft Office and Word Perfect.
  • Windows NT Server setup and configuration

Education &
Certification:
Currently
  • Advanced Linux Administration, PERL, Cisco CCNP
2003-2005 Columbia Community College - Sonora, CA
  • Cisco Certified Network Associate / CCNA
  • C++
2002-1997 California Baptist University - Riverside, CA
  • Bachelor of Science - Information Systems Management
1997-1998 California Baptist University - Riverside, CA
  • Microsoft Certification training / MCSE
  • Network engineer training
1991-1996 California State University - San Bernardino, CA
  • Bachelor of Arts - Psychology
  • Master of Arts - 2 years post graduate - Developmental Psychology

Closson.info © 2008 David W. Closson