Résumé : David Radunz

Email:  
Web:   http://boxen.net/

Introduction :

I have been working as a software developer for the past 8 years and as a system/network administrator for the past 11 years, working with both intranets and the internet. My main areas of expertise are in Perl development (Object oriented/Class based primarily) and in deploying new servers to cater for various needs.

Work Objectives :

I am seeking a role as a software developer in which I will be able to expand my current knowledge base. Ideally a position where some systems administration was also required would utilise my skill set well.

Skills :

Hardware Architectures:   Standard Intel Architecture (286 - Pentium 4/equivalent), Cobalt (RAQ 4 Server, Qube 3), Cisco (AS5400/5300), Sun (Sparc/i386).
Server Operating Systems:   Linux (RedHat/debian), FreeBSD, Solaris (8/9), Windows NT 3.5.1/4.0/2000/XP, Cisco.
Workstation Operating Systems:   Linux (RedHat/debian), Windows NT 3.5.1/4.0/2000/XP, Windows 95/98/ME, Windows 3.11, MS-DOS, Mac OS X 10.x, Mac OS 6 - 9.2.2, Solaris.
Programming Languages:   Perl (OO, Inheritance/Polymorphism, mod_perl), Java (J2SE, J2EE, TestNG, Hibernate, Struts), bash/csh/sh (awk/gawk, sed), PHP, TCL, Visual Basic, Qbasic, JavaScript, c/c++.
Web Technology:   DHTML, XHTML, Cascading Style Sheets (CSS), XML (XSLT and XSLFO), JavaScript.
Systems Administration:   Bind (named), Proftpd, wuftpd, iptables/ipchains/ipfwadm, snort, samba, sendmail, qmail, squid.
Web Servers:   Apache, Microsoft IIS.
Web Server Applications:   NetTracker, ichat, DigiChat, DigiPosts, Hubz, Demarc (Intrusion Detection System), sqwebmail.
Databases:   Oracle, MySQL, postgresql, FileMaker, Microsoft Access.
Directory Servers:   Microsoft Active Directory, OpenLDAP.
Revision Control:   Concurrent Versioning System (CVS), Subversion (SVN).
Networks:   TCP/IP (Including UNIX/Linux, Windows and MacOS networks), Datashaping, Routing, Firewalling (iptables, ipchains, ipfwadm, tc), Microsoft Network (including samba on linux), NetBIOS Extended User Interface (NetBEUI), AppleShare IP, Apple Talk, Novell.
Networking /
Security Equipment:		   Cisco routers/switches, Bay Networks routers/switches, Linux rules-based firewall systems, Microwave (Wireless) Technology, CAT5 and BNC Networking (incl. cable crimping).
Graphics:   Macromedia Flash 5, Macromedia Fireworks 4, Corel Draw 8/9, Corel Photo Paint 8/9, Adobe Photoshop 6, Paintshop Pro 6, The Gimp.
Authoring:   ViM, FOP (using XML), Macromedia Dreamweaver 4, Microsoft Excel 2000, Microsoft Word 95/97/2000, WordPerfect 5/6/7.
Project Management:   Training of staff in systems operations and administration, team leader.
Technical Support:   Assembly and installation of computer hardware, phone and on-site software/hardware support, on-site network support.
Customer Support:   Phone tele-marketing/sales, customer relations management (complaints department - optus), customer liaison and rapport.


Employment History :

January 2003 -
Present		   Developer, Netspace Online Systems

Netspace Online Systems is an Internet Service Provider with a long history in realiability. I was originally contracted by Netspace in June 2002 to develop Encircle (see below) and was hired to work full time in January 2003.

My responsibilities at Netspace included:
  • Provide ongoing maintenance and support of the Encircle product
  • Develop and support new projects as well as maintain existing code base
  • Provide support to other departments via RT (Request Tracker)
Some of the projects for which I am responsible (design, development and support):
  • Developed generalised User Administration (username/userid checking, account administration, extracting account details in a friendly way, e.t.c.) and User Interface (standardised html forms, popup list generation incl. advanced sorting, dynamic page construction, e.t.c.) perl modules
  • Developed Invoice, Statement and Overdue notice printing systems (perl and FOP)
  • Developed Notification (of new account) printing system and generalised perl OO interface to HTMLDoc
  • Developed modules for processing, polling/submission and reporting of BPAY, LockBox and DirectDebit payments
  • Created a customised version of Apache::CookieLogin for use internally (by staff) and externally (by customers) to produce a globalised login system
  • Ported internal ACL systems from OpenLDAP to Microsoft Active Directory, allowing for simpler administration and auditing of staff access
  • Development of 'MyNetspace' online portal to the customers account tools - framework written in mod_perl
  • Numerous other projects for administration of the customer database (for use by staff and the customer)
 
June 2002 -
January 2003		   Developer/Systems Administrator, Encircle (Netspace Online Systems) - Contract

Encircle is a telecommunications company owned and operated by Netspace Online Systems offering cheaper long distance phone calls. I was contracted by Netspace to bring Encircle online, this included development of the TCL IVR Cisco scripts, the website and the support website.

My responsibilities at Encircle include:
  • Development of the TCL IVR Cisco scripts (the system that the customers call into to make phone calls)
  • Development of the Encircle customer and support websites in mod_perl
  • Maintenance of the Encircle servers, including the webserver and the radius server
  • Maintenance of the Cisco AS5400/AS5300 routers running the IVR scripts
  • Offering support for the Encircle product throughout netspace
At the end of my contract I was hired to work full time for Netspace Online Systems, continuing to maintain and develop Encircle among other tasks (see above)
 
April 2001 -
June 2002		   Systems Engineer, Webmastery

Webmastery is a specialty Internet hosting and service development business operated by TransForum Pty Ltd. At Webmastery, I was responsible for configuring, installing, securing and maintaining co-hosted servers located in two hosting centres, as well as in-house gateway servers and client-side networks. As Webmastery is a premium service provider I had also been involved in developing and maintaining various software applications (some of which are listed below).

My responsibilities at Webmastery included:
  • Building web servers and respective staging servers
  • Development of various web applications
  • Administration of Bind name servers and secondary servers
  • Administration of Apache
  • Security Analysis (snort, demarcd, iptables logs, etc)
  • MySQL server maintenance and administration
  • Providing technical advice to team members
  • Administration of qmail and vpopmail with virtual domains
  • Customer Support
  • On-Site software installation
  • Remote administration of client servers
  • Training an assistant
Projects for which I was responsible (design, development and support):
  • Band-Max © - IP accounting package designed to be used by companies monitoring staff internet usage, or for website developers to measure site bandwidth.
  • Apache::CookieLogin © - Cookie based authentication system for apache, with customisable login forms and the option for persistent cookies. This module uses XML files to configure its settings.
  • TransForum::Proforma © - Templating module for use with perl or mod_perl environments. This module allows for the separation of HTML from the main code of scripts which makes them easily maintainable.
  • Apache::ErrorControl © - Apache error event handler to deliver custom error message pages. Able to deliver custom error pages on a per-site basis with only one entry in the main server configuration file.
  • AIBF Infocent - Article search engine developed for AIBF (online at: http://www.aibf.com.au/infocent/).
  • Bulk Emailer - Bulk online email client for sending one message to many email addresses one email at a time.
 
April 2000 -
March 2001		   Systems Administrator / Programmer, WaivCom Worldwide Limited

WaivCom was a specialty print publishing group with an interest in bringing their business to the online world. I joined as part of a small team charged with bringing their divergent Internet activities in-house and updating them. I was responsible for configuring and maintaining mainly Linux servers used for hosting (at GlobalCentre), in-house staging and development and as a gateway to our microwave uplink (to Davnet); for developing traffic management and other services and for database management underpinning WaivCom's various Web sites and e-mail campaigns.

My responsibilities at WaivCom included:
  • Data Shaping, Accounting and Management of the company's bandwidth
  • Installation support for Microwave link
  • Administration of QuickMail Pro (Machintosh Mail Server)
  • Administration of qmail and vpopmail with virtual domains
  • Administration of Bind name servers and secondary servers
  • Development of various web applications
  • Building web servers and respective staging servers
  • Internal network management (incl. routing and firewalls)
  • MySQL server maintenance and administration
  • Training an assistant
  • Providing technical advice to team members
Projects for which I was responsible (design, development and support):
  • TransForum::AdMax © - Banner ad rotation and management system.
  • WelcomeTo::Parseforma © - mod_perl engine that drives the www.welcome-to.com website. Its main focus is on making the website appear to be HTML and not perl or mod_perl for easy indexing by search engines.
  • Developed subscription engine for various magazine titles during the "Apple $40,000" promotion.
 
August 1999 -
March 2000		   Customer Service Representative, Cable and Wireless Optus Internet

At Optus I was responsible for configuring the clients' machines via telephone support and I was also placed in the Customer Relations Management team for a while dealing with customer complaints.

My customer service responsibilities included:
  • Troubleshooting Internet connections and Modem problems
  • Creating new Internet accounts
  • Handling Sales and Accounting queries
 
September 1998 -
July 1999		   System Administration and Customer Service, OnTarget Group

I installed and configured a Linux gateway and server and was contracted to provided Corel's Australian customer service.

My Linux/Windows Systems and Network Administration work for OnTarget included:
  • Sendmail configuration
  • Unix firewall and port forwarding configuration
  • Configuration of intranet web server for internal web development (Apache)
  • DNS administration and configuration
  • IP accounting implementation
  • Setup Routing for the permanent connection and the extra IP addresses
  • Proxy server installation and configuration (Squid)
  • Made the system completely manageable by the staff, via a menu driven command set (Flin)
  • HTML Coding, and HTML styled output of IP Accounting records
  • Shell scripting (Bash)
  • Remote administration of the servers
Untill 2003 I have returned on contract to build a replacement gateway/server doing any critical administration remotely.
 
June 1995 -
August 1998		   Founder, 1st Choice Computers

This was my own personal business which sold, configured and supplied computer hardware, software and internet connections. Working in a management and "team leading" position I was able to pick up skills that have remained very useful.

1st Choice provided me with experience in:
  • Networking with Linux and Windows NT
  • Systems Administration with Linux and Windows NT
  • Technical Support for the product line
  • Software Support and Troubleshooting
  • Customer Service and Sales
  • Hardware Assembly
  • Web Development (HTML)
  • Project Management
  • Advertising Development
  • Accounting and Finance Management
  • Strategic Planning
  • "Trade Stand" Marketing Development
  • Warehousing Control

Academic Achievements :

1997 - St Edmund's College, Junior Certificate in:
Interests and Hobbies :

Referees :