Security Systems

RUSSELL RADEMACHER

***** *********** *****, *** *** Houston, TX 77077

281-***-**** • ****@*********.***

SYSTEMS ADMINISTRATOR NETWORK ADMINISTRATOR

Technologically sophisticated Senior Systems / Network Administrator with more than ten years of experience

administering local and remote LAN / WAN networks. Talented designer with extensive experience creating cost effective

network infrastructure from the ground level and with enhancing legacy systems to state-of the art technologies. Expert

creating secure networks and developing comprehensive security policies and practices. Skilled project leader with

repeated success leading installation, configuration, and upgrade projects to on time completion. Authority for Tier I, II,

and II support; effective training junior staff in escalated support procedures. Demonstrated ability to manage multiple

concurrent initiatives.

AREAS OF EXPERTISE:

• • •

Network & Systems Administration Network Security Tiers I, II, & III Support

• • •

Resource & Capacity Planning Project Management Installs & Deployments

• • •

Technical Team Management Documentation Remote Administration

• • •

Policy & Procedures Development Systems Audits Relationship Management

TECHNICAL PROFICIENCIES

Platforms: FreeBSD, HP ProCurve Switches, Linux, Novell, Sun Solaris

Applications/Tools: 3Ware, Apache Tomcat, BFD, Bind DNS, Cacti, Clam Antivirus, Courier IMAP,

cPanel, Exim, Fantastico, GCC Compiler, IPtables, Kayako, Kernel Recompile,

MS Office Suite, MySQL, Modernbill, NFS, OpenSSH, POP3d, Postgres SQL,

Pure FTPd, RPM, RRDTool, SpamAssassin, UW-IMAP,

Protocols: DNS, DHCP, TCP/IP

Languages: C++, Bash scripting, Java Servlets, JSP, Perl scripting, PHP, VB

Hardware: Servers, routers, switches, hubs, firewalls.

PROFESSIONAL EXPERIENCE

Remote Systems Administrator / Technical Director

Provide remote and onsite administration of Linux based servers and networks supporting critical applications and

operations for contracted clients as a web hosting services provider. Design, configure, install, and upgrade network

systems. Collaborate with internal and external stakeholders to plan and implement new installs, upgrades, and

enhancements. Develop operating, administrative, security, troubleshooting, and disaster recovery policies with

supporting documentation based on industry best practices. Serve as escalated support through Level III. Train and

mentor junior administrators.

Key Projects:

cPanel of Texas – Houston, TX (2007 to 2009): Level 2 Technical Analyst to customers running cPanel

Control Panel on Linux platforms and FreeBSD

Troubleshoot and analyze the problems on the server

Provide solutions and resolve the issues on the server, while providing the feedback on the issue back to

customer.

File bug reports and feedback to developers on the builds released

Develop and write documentions for references for other techs

Work with other Techs on developing solutions and fixes for unique problems

MICFO LLC – Las Vegas, NV (2003 to 2008): Manage a technical team providing systems and network

administration across multiple shifts. Provide escalated issues troubleshooting and resolution. Conduct systems

and security audits.

Selected and implemented SpamAssassin and Clam Antivirus technologies with back-end processing

resulting in improved performance and reduced downtime.

Improved security by implementing IPtables firewalls on all servers and applying static kernels that locked

down the servers. Implemented MAC to limit access to authorized staff only.

Developed security and server polices with supporting documentation that standardized administration

practices across the enterprise.

Trained administrators in Tier III support practices.

Assisted executive leadership with developing technology roadmaps for expanding products and services.

Led the Linux server upgrade projects including cPanel installation, kernel upgrades, and version upgrades

for Apache and PHP.

HostForWeb, INC – Chicago, IL (2003 to 2007): Design, configure, and install network infrastructure. Provide

remote administration and Tier II support. Conduct security and systems audits.

Implemented cPanel control systems on Linux and FreeBSD servers.

Upgraded the cPanel antivirus systems.

Developed administration and troubleshooting policies. Trained technicians in support and administration

for cPanel and Linux systems.

Hostmatix LLC - Orlando, FL (2002 to 2006): Administered systems remotely and provided escalated

troubleshooting and issues resolution. Audited systems and policies to identify and remedy vulnerabilities.

Upgraded Apache and PHP versions. Implemented Kernel upgrades.

Provided business consulting and technology evaluation with the goal of permitting scalability while

retaining security and systems stability.

100MegsWebhosting – Canada, (2003 to 2004): Provided remote systems and network administration.

Supported users as both a Tier I and Tier II resource. Prioritized trouble tickets to ensure timely and prompt

issues resolution. Administered systems security and conducted audits to reduce exposure to threats.

Served as the “go to” resource for escalated issues resolution.

Configured, installed, and upgraded Linux based servers and networks.

Interservers – Pittsburgh, PA (2001 to 2003): Served as Tier II support and the remote systems / network

administrator. Monitored networks for exposure to threats.

Implemented security procedures for shell accounts and user account maintenance. Configured Apache,

cPanel, Bind9 DNS, PHP3/4, and FrontPage.

Installed H-Sphere and CPanel on Linux servers.

Trained junior administrators and technicians in Linux systems administration.

Consulted with senior management to develop technology roadmaps supporting business growth.

First Networks – Clarisville, OH (2001 to 2003): Supported and administered Linux systems and networks

remotely. Trained staff in systems administration practices and procedures. Audited systems security and

initiated upgrades to limit exposure. Served as the escalated support resource.

Configured and implemented Apache, Qmail, Bind8 DNS, PHP3/4, and FrontPage with appropriate security

processes.

Developed and executed scripts that automated repetitive administrative tasks resulting in reduced support

overhead.

Delhinet Web Services – Delhi, India (2000 to 2002): Managed technology transfer and upgrade projects.

Provided remote support and issues resolution for Linux systems. Trained and mentored client IT staff.

Managed the migration of servers from a third party provider to internal control and administration.

Completed project on time with minimal disruption to the user group.

Netwolves Technologies – Tampa, FL (2000 to 2001): Served as the Product Engineer and Network Systems

Administrator. Managed upgrade and enhancement projects in partnership with functional managers and senior

decision makers.

Reengineered the network local and remote network topologies. Upgraded and rebuilt for servers from

FreeBSD 2.2.8 to FreeBSD 3.4 with SSL encryption.

Replaced the Foxbox router with Scott dual WAN pipe cards. Implemented improved security measures

concurrently.

Redesigned and rebuilt the mail server. Migrated accounts with no user impact.

Evaluated risk and successfully lobbied for a new network backup system. Deployed a Scott system with

2.5 terabytes of capacity.

Grapevine2 Internet Services – Rochester, NY (1997 to 1999): Administered and supported Linux and

FreeBSD servers for 170 hosting customers and 900 dial-in customers. Led infrastructure enhancement and

upgrade projects.

Migrated the hosted environment in-house from IServer.

Developed selection criteria and evaluated Class 1 backbone carriers. Selected Frontier 1 as the preferred

provider.

Designed and implemented the network technology integrating Frontier 1 services with Grapevine2’s

networks. Installed and configured services resulting in a cost effective best of class network.

Selected transparent service providers for dial-in customers.

Point of View Internet Services – Nashville, TN (1997 to 1998): Supported 74 web hosting and 320 dial-up

customers. Maintained and administered Web and user accounts.

Osprey Computers – New Port Richey, FL (1996 to 1997): Founded and managed the company providing

network and computer support and administration services. Provided remote and on-site sales, service,

installation, and support.

Designed and installed customized LANs with internet access for contracted clients.

Installed, configured, supported, maintained, and performed troubleshooting for Linux, Windows 95/NT

Server, and Workstation based networks.

EDUCATIONAL BACKGROUND

Computer Science Program

Rochester Institute of Technology, Rochester, NY

Core Coursework:

VB Programming

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Local Area

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Systems Analysis & Design

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Networking

PC Hardware

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TCP/IP Protocol

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Operating Systems

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Intro to C++

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Networking &

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Scripting

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