CHRISTIAN G. HÖLTJE
P.O. Box 81062
Pittsburgh, PA 15217
Phone: (412) 913-3317
Website: http://docwhat.gerf.org/
e-mail:  DOCWHAT@GERF.ORG

PROFESSIONAL
SUMMARY
Over twelve years of experience in designing, writing, managing and debugging software systems from simple systems to enterprise wide critical systems.  Experienced in researching, designing, and implementing usable solutions for technical and non-technical customers.  Repeatedly recognized for ability to work with and learn diverse platforms and technologies quickly and effectively.


QUALIFICATIONS
Proficient in C/C++, Perl, Python, PHP, SQL, Unix Shell,  Javascript/ECMAscript, HTML, CSS, Java, LISP/Scheme, Pascal, BASIC, visual programming, version control systems
Experienced administrator and developer for many platforms: Unix, Linux, TANDEM Guardian, Solaris, Microsoft Windows (workstation and server), Mac OS (classic and X)
Hands-on experience leading all stages of software system development from gathering requirements and design through QA and support
Experienced in automating businesses and processes, developing operating system platforms, implementing mission critical systems, managing and designing relational databases, creating user friendly systems
Experience in training and documenting computer processes and software
Red Hat Certified Engineer


PROFESSIONAL EXPERIENCE
Sr. Software Application Engineer
Vivisimo, Inc.	Pittsburgh, Pennsylvania	2006-now
Designed and implemented interactive features for Velocity.
Designed and implemented advanced features for customers and in-house demo sites.

Software Production Engineer
TimeSys Corporation	Pittsburgh, Pennsylvania	2004-2006
Designed, implemented, and maintained the LinuxLink BuilderSystem: a  system to build, manage, publish and maintain projects used by both in-house engineers and external customers.
Designed, implemented and documented zero-downtime site management system.
Designed and implemented a prototype Automated Embedded Board Farm to automate installation, booting and testing of embedded systems from remote locations.

Lead Developer
Rackspace Managed Hosting	San Antonio, Texas	2000-2004
Designed, implemented, and maintained CORE; a custom built enterprise-wide CRM, Ticketing and Automation System using PHP, Perl, Python, SQL and Apache
Implemented and maintained internal use libraries and tools such as HTML GUI toolkits, version control (CVS and Bit Keeper),  Object Oriented Relational Model libraries, and Business Logic Libraries
Worked with other departments to design solutions to improve their performance and productivity

Senior Build Engineer
TurboLinux, Inc.	Brisbane, California	1999-2000
Designed, implemented, maintained and managed operating system platform development procedures and tools
Implemented and maintained automated RPM package tracking and build system
Built and updated RPM packages for the TurboLinux distribution
Performed as Gatekeeper and QA control for TurboLinux distribution

Information System Analyst
Tandem Computers Inc.	San Jose, California	1996-1999
Tandem was purchased by Compaq Computer Corporation in 1998
Maintained and provided support for Tandem NSK Systems to internal developers and external customers
Automated cold start procedure, reducing start time from 4+ hours to 1 hour
Administered all non-NSK systems and software: Solaris, Win NT, Win95/98, Storage Tek ACSLS, NSK Monitoring Solution
Devised and managed complete disaster recoverable backup strategy and schedule

Kernel Test Suite Programmer
Argus Systems Group, Inc.	Champaign, Illinois	1995-1996
Developed and maintained Kernel Test Suite for Argus's Solaris Based B1/ITSEC compliant secure OS (currently called PitBull)
Analyzed inconsistencies and provided QA for kernel developers
Developed initial public web site

Network Support Technician
University Residence Halls at UIUC	Urbana/Champaign, Illinois	1994-1995
Assisted students onto the network
Resolved problems on the network and on the students' computers
Managed my residence hall's network infrastructure
Developed URH Network installer in MS Visual C++

Instructor for Student Free Classes
CCSO at UIUC	Urbana/Champaign, Illinois	1993-1995
Computer and Communications Services Office at the University of Illinois at Urbana/Champaign
Taught introductory and advanced classes such as: DOS, Mac OS, Windows, Unix, Word Perfect, Microsoft Word, Lotus 1-2-3, and other similar topics
Designed and implemented web based system to allow students to sign up for classes via the web
Provided assistance with web and documentation design
EDUCATION
AND
TRAINING
Bachelor of Science in Computer Science
University of Illinois at Urbana/Champaign	1992-1996
Graduated from the school of engineering with a bachelor of science in computer science with a goal directed sequence in music and sound theory


NON-WORK RELATED EXPERIENCE

Active contributor to many projects such as:
OpenZaurus
OpenEmbedded
Debian Linux distribution
Linux Kernel
Presented at the Ottawa Linux Symposium
Provides technical services for the Chicago IANDS web site
Provides remote desktop and software troubleshooting for a variety of platforms
Manages collection of domains and email services at Gerf.org
Written several programs and system extensions for the Palm series of devices