intuitive engineering

UNIX SYSTEMS and NETWORK ADMINSTRATOR

SUMMARY:

skilled systems and network engineer with experience designing, developing, implementing, troubleshooting TCP/IP networks, services, applications and hardware. Experienced with critical networks, high availability and redundancy. Firewalls, network and host security. UNIX, Linux, and Windows operating systems configuration, security and application support. Automation of process in shell and Perl. Technical project management.

TECHNICAL SKILLS AND EXPERTISE

administration and Container environments

OPERATING SYSTEMS:

• Linux (Ubuntu, kubuntu, RedHat, Suse, Gentoo, Debian)
• UNIX (Solaris, BSD), Windows Server, Cisco IOS
• Solaris 10 administration and container environments
• Automated installation/deployment via SUN Jumpstart and RedHat kickstart, PXE boot
• Scripting and packaging of both SUN and RedHat for stripped OS security and application builds

SECURITY:

• Check Point NG-R55 – NGX-R65
• Iptables / Ebtables
• OpenSSH, OpenVPN (VPN-over-SSL), IPSEC, IPfilter

NETWORK APPLICATIONS AND PROTOCOLS:

• Apache
• SMTP (Sendmail, Postfix, Qmail) IMAP
• DNS (Bind, TinyDNS)
• Nagios Network Monitor MRTG
• SpamAssassin, Email virus scanning (Trend, Amavisd w/Sophos)
• FTP, VLAN 802.1q trunking, MLT/PortChannel, OSPF
• FW monitor, tcpdump, ethereal (wireshark), VRRP, LIDS, SELinux

SOFTWARE:

• PERL and shell script
• IBM Websphere MQ, Websphere TX
• Jboss
• Pentaho
• Veritas Netbackup
• Veritas Firstwatch and Cluster Server
• Veritas Volume Manager and Filesystem
• PostgreSQL, MySQL, Perl DBI
• RPM including custom package management
• CVS, Subversion
• various Microsoft applications
• IXIA.

HARDWARE:

• Crossbeam Systems XOS and COS Security Appliance
• Egenera Bladeframe
• Cisco routers and switches, Extreme switches
• SUN Sparc servers, including CPU, system board, disk, and memory replacement and upgrade.
• CLARiiON/EMC SAN, Network Appliance NAS
• Servers (Dell, HP, Compaq, IBM)

PROFESSIONAL EXPERIENCE

Senior Software Engineer, January 2008 to Present

Evergeen Investments

Boston, MA

• Implemented and support IBM Websphere MQ on Solaris 10, tying directly into an extranet Websphere MQ messaging server increasing reliability of application communications.
• Tied websphere MQ messaging into Enterprise Service Bus, and ongoing support and troubleshooting of that application
• Supporting application developers in moving applications through testing on jBoss AS to production jBoss instances
• Deploying and managing middleware systems and applications including:
  • Websphere TX
  • Pentaho
  • FlexTrade
• Writing scripts for startup and management of 70 plus jboss servers
• Ongoing monitoring and alerting, managing Nagios, testing Nimsoft and Hyperic as replacements

Senior Customer Support Engineer May 2006 to January 2008

Crossbeam Systems, Inc.

• Hardware, software application and network support for Linux-based Security Appliance, encompassing load-balance and extensive hardware and software HA.
• Troubleshooting and resolution of Check Point firewall application issues, Linux kernel, memory and hardware driver issues, network traffic and routing issues in large-scale critical networks.
• Traffic generation using IXIA for re-creation of customer issues and qualification of software solutions.
• Ongoing customer support and on-call rotation.
• Technical Account Manager for a major U.S. ISP and a worldwide major energy company, responsible for customer issue resolution, technical contact for customer communication, escalation contact.
• Professional Services implementations on customer sites, including an online trading company (17 chassis in St. Louis) and a worldwide energy company (Chicago and Houston data centers, migration and installation, acceptance testing).

Senior UNIX Systems Admin and Network Engineer September 2000 to May 2006

Egenera, Inc.

• Engineered and implemented security and services for corporate network – Firewalls, VPN, file and print services, DHCP, DNS, Samba, NFS, all internal and external connectivity and monitoring.
• Architecture, proof-of-concept engineering, implementation and documentation for corporate network services and access driven by business needs.

Firewall Systems Engineer 1998 – 2000

Fidelity Investments Systems Company, Marlborough, MA

• Supported the distributed firewall servers and networks portion of Fidelity Investments’ Internet presence.
• Responsible for engineering, implementing and maintaining the Internet firewall structure for Fidelity Investments, encompassing 842 SUN enterprise servers providing proxies, gateways, ipfilter, webservers and relays, across three data centers and two remote hosting facilities.
• On-call to resolve rapidly any disruption to www.fidelity.com, 24 x 7.
• Perl and mySQL development aimed at simplifying and making modular and then improving the monitoring being done within the firewall environment to predict and spot potential problems before they affects business processes.
• Maintained, updated, tested, and deployed the stripped Solaris OS used in the Fidelity firewall environment, which involved tripwire, IPfilter, ISS security scanner audit and correction, custom script packages, and a jumpstart build server for consistency.
• Deployed Veritas Volume Manager and filesystem, Veritas Firstwatch and Cluster Server on Solaris.

Network Administrator 1998

Silverplatter, Inc., Norwood, MA A database and content developing company.

• Responsible for corporate LAN encompassing network services on Linux (DNS, DHCP, silverplatter.com, FTP, monitoring),
• Netscape messaging services on Solaris, production development on SCO, Linux, and NT.
• Repaired DNS structure. Moved configuration of DNS forward to centralize control in one location. Made it clear, documented and sustainable.
• Re-wrote backup script to work (and tested as such).
• Replaced and upgraded ftp server, designed and implemented HA server to run Apache.
• Upgraded CVS server.
• Built web development server to separate development code from production pages.

Unix and NT Systems Administrator 1996 – 1998

Inforonics, Inc., Littleton, MA SUN-oriented Database development company

• Responsible for building and maintaining internal LAN development servers and clients, and UNIX systems administration in Solaris Internet hosts.
• Standardized windows client support and deployment, ghosting operating system and software installs and using sysdiff and automated NT install scripts.
• Scripted monitoring tools to sift Solaris logs looking for specific problems and alert before they impact customers.
• Built and configured and patched Solaris devlopment and production machines.
• Developed custom Solaris packaging.

EDUCATION

CONTINUING PROFESSIONAL EDUCATION

• IBM Websphere MQ Administration Course Boot Camp 2008
• Check Point Security Administration NGX I and II 2006
• Extreme Networks Switch Certification 2001
• BigIP F3 Network Architecture and Implementation 2000
• RedHat Certified Engineer course 1999

Worcester Polytechnic, UNIX Network and Systems Administration 1996

UCLA, Physics Major

REFERENCES – Available on Request