Daniel Geisler's technical resume
Possesses excellent people skills with a track record of consistently
exceeding customer expectations. Highly motivated, works well on own or
in a team. Technical guru with broad and deep knowledge of all facets
computer systems, allowing for the quick mastery of arbitrary
technologies. Over twenty years experience as a developer and systems
engineer, ten years - systems analysis and object-oriented programming
and design, seven years - systems architect, five years - management
experience. Has strong interdisciplinary background in the sciences, in
process of writing up research in complex systems.
Areas Of Knowledge:
- Systems architect, technical strategy, Oracle
DBA/developer, systems analysis, distributed systems, systems
- Java Server Pages, Enterprise Java Beans, Servlets, JDBC, AWT, Swing
- Oracle 8.1, PL/SQL, PRO*C, Sybase, Access, Oraperl
- Windows, Linux (Caldera, Red Hat, Mandrake), UNIX, Novell, MVS/ESA
- CASE tools
- PowerDesigner, Systems Engineer and Paradigm Plus CASE tools, Visio
- Configuration Management
- ClearCase, Visual SourceSafe, RCS, SCCS
- GUI IDE's
- PowerBuilder 3.0 - 6.5, JBuilder 3.0, Visual Café 3.0, Visual Basic 2.0, Access 2.0
- Oracle 8.1, Weblogic 4.5, Apache, WebSite, Netscape Enterprise Server
11/00 - 3/01 Senior Java Developer, Webb Interactive Services
Worked on team of nine developers as a senior Java developer,
supporting Webb's flagship product AccelX SiteBuilder, which provides a
way to create complex business websites using templates and wizards
with a web browser as the front-end. The system is XML based and
implemented using Weblogic 4.5, Oracle 8.1 with a JSP front-end and web
site generation driven by XML and XSLT.
Wrote the JSP for several of the most complex JSP pages in the product
Home page - largest page in the product
Gateway page and supporting architecture - manages access to
arbitrary page types and allows SiteBuilder to easily add new page
types that transparently interface with the Gateway page.
Staff page - the most complicated page in the product with several levels of nested
Designed and wrote debugger for SiteBuilder using Java and XSLT. The
Java program recursively explores the entire system using reflection,
outputting the resultant data as XML. The XSLT transforms the XML into
HTML, creating navigation aids, a table of contents, and nested tables
that can be a dozen levels deep.
5/99 - 8/00 ISP development team-lead, Qwest
Support of the Medusa Billing System; Colorado Supernet's legacy
billing, usage and provisioning system. The system spans fifteen Unix
and three Windows NT servers and was developed over a fifteen-year
period of time as a meshwork of many differing architectures. System
implemented in Perl, C, shell scripts, Oracle 7.3, ssh, rsh, ftp, as
well as many other technologies.
- Almost all knowledge of the system came from extensive personal
research since the system was completely undocumented and there was
almost no institutional memory. Medusa has well deserved reputation as
the scariest production system that anyone had ever seen.
- Mirrored billing system, comprising 85,000 flat files, from Sun box
to Intel Linux box for Y2K testing and as a backup billing system.
Completed Y2K testing and remediation in only a third of the budgeted
Provided business analysis and technical support for different
billing and services migrations. Wrote Perl scripts to analyze http
logs to determine the financial and customer impact of potential
changes in service offerings and service areas. Merged the http data
extracts with numerous other data sources and provided an Excel front
- Set up Apache web site and supervised the development of Perl CGI
scripts providing a web front end to the Perl financial reports.
8/99 - 5/00 Java Developer, Qwest
Developer on IP Resource Management system based on Enterprise Java
Bean technology; implemented using Java 1.1, Visual Café 3.0,
Weblogic 3.5, Netscape Enterprise Server, Oracle 8, Jikes, Make, SCCS,
and Perl running on Solaris.
Main developer supporting the Java applet front-end. Iterative rapid
prototyping of DSL Services module consisting of several simple windows
and a seven-tab window using Visual Café 3.0. Prototyped smart
grid control to encapsulate the connection to a family of Session EJB's
by using Reflection.
Sole support for Perl script that generated the Entity Bean, Bean
Interface, Home Bean, Home Interface, Deployment Descriptor, and Oracle
DDL from a custom meta-language script.
Redesigned build system to allow developers to rebuild and rerun the
system over 56K modem; reducing the time from a couple of hours to a
couple of minutes.
Provided extensive Oracle and database support for other team members.
10/98 - 1/99 Web developer, AT&T Broadband
New development and maintenance of an intranet time entry system
using CGI scripts running on WebSite 2.0. Developing in PowerBuilder
Analysis of new project tracking system to integrate with current
time entry system. Developing strategies for re-architecting the time
entry system to enhance its maintainability.
7/98 - 9/98 Perl developer, Micromedex
- Developed Perl scripts for parsing six different document types and
loading them into Oracle using Oraperl. Wrote five of the PRO*C reports
for regenerating the original parsed documents. Finished task expected
to take three to six months in two months.
5/97 - 5/98 Senior Systems Engineer, Convergent Group
Heavy advanced Oracle development. Wrote application that moves over
200 Meg of VSAM data on mainframe into 23 Oracle tables through VSAM
gateway, to be used by Smallworld application. Wrote Perl script to
create Focus File Definitions, Oracle views, tables, and stored
procedures from COBOL copy books for VSAM gateway.
- Senior PowerBuilder developer at Convergent Group. Radically
customized 3rd party Work Management application written in
PowerBuilder 5.0 and Oracle 7.3. Wrote one datawindow that
replaced seven Excel spreadsheets.
Wrote Perl 5 scripts to create system of HTML pages, reporting on
internal web usage from proxy server logs. Created Perl script that
translated datawindows into Dynamic HTML to document datawindows.
8/96 - 12/96 GIS Developer, Petroleum Information
Wrote Sales Order module for commercial product using PowerBuilder
4.0 and Oracle. The Sales module contains very elaborate security with
eight different security roles.
- Senior technical programmer for team providing mentoring and technical assistance to the other team members.
Proposed and implemented major architectural changes for the product
as a whole; making the application framework more robust, and easier to
2/96 - 6/96 GIS Developer, New Century Software
Took over an undocumented GIS (Geographical Information System)
natural gas Facility Management project that the previous programmer
walked off of. Completed the Placement, Reroute, and Abandonment
modules using PowerBuilder 4.0 and Sybase. Designed and coded the
initial part of the pipeline Modeling module.
- Wrote software to manage profound database redesign where over thirty
percent of a database with a thousand fields was redefined, impacting
seven Meg of PowerBuilder code.
1994 - 1995 Systems Engineer, Systems Engineering Services
- Solely designed and coded a prototype for a system to handle all
business sales orders for AT&T in PowerBuilder 3.0 and Watcom 3.0.
Management was so impressed the system was shown to a junior Vice
President at AT&T. Designed and coded application framework, tab,
and navigation objects (as in File Manager) using user defined
events and user objects with entire system based on inheritance.
- Mentored two programmer in coding the next iteration of the
prototype in PowerBuilder 4.0, Watcom 4.0 and C DLL's using
Watcom's triggers and stored procedures. Wrote code to create Watcom
tables from information in IEF and Paradigm Plus CASE tools. Prototype
was shown to a senior Vice President at AT&T who was positive about
- Wrote C, C++, PowerBuilder, and Sybase tests assessing the skill level of job applicants at SES.
Provided the technical support for SES to begin having a presence on
the Internet. Researched WWW servers and prototyped HTML pages.
1994 - 1994 Senior Systems Analyst, Alphatech
Project leader on site at the Consumer Product Safety Commission.
Project involves the redesign, consolidating of functionality and
porting of data from IBM 370 mainframe, AT&T UNIX, and IBM PC's to
a PowerBuilder 3.0, Sybase 4.2, Novel, WordPerfect 6.0 and cc:Mail
Delivered full life-cycle plan with milestones, data dictionary, ERD
and DFD for Compliance and Enforcement, Corrective Actions Division.
Wrote monthly status reports, provided project supervision, and
PowerBuilder and Sybase training for two government employees.
Personally designed and coded PowerBuilder, Sybase workflow
applications using WordPerfect as an OLE server and DDE client, and
PowerBuilder as a DDE server. cc:Mail acted as a DDE server for
PowerBuilder as a DDE client. Based application architecture completely
on PowerBuilder inheritance.
Designed and coded Sybase DDL, DCL, and DML scripts. Wrote stored
procedures and triggers. Used dynamic embedded SQL in PowerBuilder.
1992 - 1994 Senior Systems Analyst, The Orkand Corporation
Team leader for prototype task using Systems Engineer, PowerBuilder
and SQLBase to prototype Windows screens, design system-wide objects,
and to test the development toolset's ability to support the
Client-Server environment for highly visible State Department project.
Team leader for the Business Area Analysis of a business area using
the Information Engineering methodology. Supervised two systems analyst
using LBMS's Systems Engineer CASE tool to create a data dictionary,
track requirements, and generate DFD's, and ERD's in the 3rd normal
Hired to help finish a very large Visual Basic project in that had
fallen behind schedule. Assigned and completed what were considered the
project's most difficult tasks. Severed as major project resource in
providing solutions to other programmers technical problems.
1991 - 1992 Project Manager; Software Technology Group
Given management position to turn around floundering Neural project.
At end of project client declared Neural project major success. Neural
system used to make $27,000,000 in bids in first six weeks of operation.
- Extended clients ability to make bids from system's with 1600 phones
to systems with 33,000 phones; exceeding target by 450%. System
enhancement researched and implemented after hours, after work was
stopped on enhancement due to it being considered impossible to
implement. The ability to make bids on larger systems was the prime
reason the Neural project was initiated.
- Supervised five programmers in MVS environment and served as contact with client MCI.
- Suggested idea and provided technical support for the Department of
Education's first neural network study. Results of feasibility study
indicate a significant improvement over earlier purely statistical
- Personally implemented two of project's three main strategic goals.
1991 - 1991 Manager of Information Systems; Helicopter Association International
Implemented major upgrade and modernization of software.
- Software, hardware and LAN trouble-shooting and maintenance.
- Novel network administrator.
- Introduced principles of normalization, structure programming, and systems analysis and design to HAI.
1988 - 1990 Business Programmer; Computer Age
- Programmed and maintained large accounting and manufacturing
software. System comprised 1200 source code files, 170 tables, and 500
indexes. Wrote custom accounting modules.
- Designed and programmed low end CASE tools, including an automatic
code generator and a data dictionary for managing and reconciling the
physical and logical database structures of multiple versions of
databases and their supporting code.
- Prototyped different software development systems to evaluation their
feasibility as development platforms. Designed and wrote application in
Guru, a expert system integrated with a sophisticated 4GL and
supporting fuzzy logic.
- Wrote and typeset Sales Order and General Ledger user manuals using Ventura Publisher.
1987 - 1988 Programmer/Analyst; Helping Hands
- Developed an accounting system using DBase III and Lotus 1-2-3.
- Wrote and typeset organizational magazine using Ventura Publisher.
- Trained office personnel to use computers.
1981 - 1981 Electrical Engineering student at Southern Illinois University
1978 -1981 Seismologist/Programmer, United States Air Force
Designed and coded a variety of signal processing programs utilizing
a variety of mainframe peripherals including an IBM 2250 graphics
- Provided JCL and FORTRAN support for the Geophysics Department.
- Held Top Secret security clearances for seismologically analyzing nuclear explosions.