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curriculum vitae drs. G.J. Linker

www.oraxcel.com

Linker IT Software B.V.

Snikke 6

7833 DM
Nieuw-Amsterdam

The Netherlands

Tel: (+31) 591 556 314
Fax: (+31) 842 245 086

Curriculum Vitae   drs. Gerrit-Jan Linker


Persoonlijke informatie:                                                   Bedrijfsinformatie:
Naam:                                     Gerrit-Jan Linker                   Naam:                     Linker IT Software BV
Geboortedatum:                    25-juni-1970                           Adres:                    Snikke 6
Nationaliteit:                         Nederlandse                                                          7833 DM Nieuw-Amsterdam
               


Experience Summary

Key skills:

Level

Skill or tool

Expert

Oracle SQL and PL/SQL versions 7 – 10g. TOAD, PLSQL developer. Oracle developer & designer.
SQL Server TSQL, DTS and MS Access
Visual Basic (VB6), ADO, ODBC, VS6, Visual Interdev
Excel VBA, Office development (COM, add-ins)
C / UNIX, shell scripting

 

Software development, design, engineering, testing

Intermediate

Oracle Forms, Reports, Designer
ASP, PHP, VBScript, javascript
XML, XSLT, CSS

 

Business process analysis

Knowledge of

Visual Studio .Net

 

Freelance / Contracting positions:

Period

Sector

Company

Position

2006-2008

Energy

Cogas Energie, NL

Business Engineer / Oracle developer

2000-2005

Airport

Manchester & Liverpool Airport, UK

Out of hours systems support (Oracle + applications)

2002-2004

Insurance

Swinton Insurance, UK

Oracle, Access and SQL Server Developer

2001-2002

Energy

Generis Technology, UK

Senior Oracle Developer

2000-2001

Housing

First Software, UK

Oracle Analyst Developer

2000-2000

Pharmacy

Glaxo SmithKline, UK

Analyst Programmer

2000-2000

Retail

Littlewoods, UK

Short project: Oracle Reports Developer

2000-2000

Telecoms

Versatel, NL

Short project: VBA / Excel Developer

1998-2000

Airport

Manchester Airport, UK

Systems programmer; Oracle and VB


Permanent positions:

Period

Sector

Company

Position

1996-1998

Energy

SCT International, UK

Analyst Programmer

1996-1996

Banking

ABN AMRO through DP Finance, NL

Analyst Programmer

1995-1996

Banking

DP Finance, NL

Analyst Programmer ; IT Trainee


Own software company:

Period

Sector

Description

1995-2008

Business Intelligence

Software development & sales of my own range of software products notably the SQL*XL software.

For a more detailed summary of these positions please refer to the appendix.

Education

Period

School

Description

Location

1990 - 1995

University

Masters in Theoretical / Computational Chemistry

Groningen, The Netherlands

1989 - 1990

HLO

Laboratory Education - College of Technology

Groningen, The Netherlands

1986 - 1989

MLO

Laboratory Education - Politechnic

Groningen, The Netherlands

1982 - 1986

MAVO

Secondary School

Slochteren, The Netherlands



Courses

Year

Cource

Institute

1998

Certified Oracle Application Developer Program (completed 3 out of 5 modules)

Oracle, UK

1996

Oracle Pro*C

Xicon, UK

1996

Oracle SQL, PL/SQL, Oracle Architecture, Oracle Designer 2000, Oracle Developer 2000 (Forms, Reports)

Oracle, The Netherlands

1996

AOB - General Education in Banking.

NIBE, The Netherlands

1995

Cobol Expert Class

VAC, The Netherlands

1990

VWO Wiskunde B (Mathematics)

LOI, The Netherlands


Publications

Year

Publication

2001

Interviewed for the Jan-2001 issue of Oracle Magazine (Peer to Peer column)

2001

Written a review of the Oracle utility Formatter Plus for orafaq.com

2001

Written a review of the Oracle utility EZSQL for orafaq.com

2000

Co-authored the Oracle 8I DBA Bible. IDG books, ISBN 0-7645-4623-6

1995

Written an article in the scientific journal Journal of Electron Spectroscopy and Related Phenomena. Hartree-Fock study on the lower excited states of a Cu+ impurity in NaF using large embedded clusters, Elsevier, vol 77, p 143-148 1995

 

Published Software

 

Period

Software

Description

Skills used

1995 - 2008

SQL*XL

Interface to databases from MS Excel

VB6 : VBA : ActiveX : OLEDB : ODBC : OO4O : ADO : Oracle : Access : SQL Server : most other common DB’s

2007 - 2008

EncOffice

Office encryption software.

VB6 : VBA

2005 - 2006

litLIB

Functions library for Excel

VB6 : VBA

2004 - 2004

litXLS

Build XLS files without Excel

VB6

1994 - 1996

Huckel

Molecule Properties Calculator

VB3 : VB4 : VB5

1996 - 1997

MasSim

Mass Spectrometer Simulator

VB5 : ActiveX

1998 - 1998

DataEntry

Oracle Data Entry Utility

Oracle : Oracle Forms

1998 - 1998

Explain

Oracle Explain Plan Utility

Oracle : Oracle Forms

1999 - 1999

CommSnif

COM port sniffer

VB5 : serial comms

1999 - 1999

CommTest

COM port analyser

VB5 : serial comms

2001 - 2001

WordDiff

Word document difference analysis

VB5 : VBA

2001 - 2001

OrderForm

Configurable Order System

HTML : JScript

For further details see the software catalog at www.oraxcel.com

Languages

English

Fluent

Dutch

Fluent

German

Knowledge

French

Knowledge


Personal

2003-2007

Running: several 10k and half marathon races.

2005-2007

Editor of a local newspaper for Nieuw-Amsterdam and Veenoord. 3500 issues, monthly.

2005-2006

Training a local running clinic (athletics) in Nieuw-Amsterdam. 10 participants.

2005-2005

Assistant trainer at the running club: Loopgroep Klazienaveen: 100 participants.


Appendix: Experience details (in reverse chronological order)

Jul 2006 - Mar 2008

Business Engineer / Oracle developer

Cogas Energie

Utilities (energy)

Almelo, The Netherlands

NetMeet – a bespoke customer management system.

Freelance / Contracting

Oracle 8i/10g, PL/SQL, Designer
Dutch energy market: profielenmethodiek aardgas/electra, facturatie

  • Involved in a small team of 3 business engineers / developers to assist the business.
  • Full life cycle work. Design, execute and document test plans, system changes, new functionality. Reengineering and streamlining existing systems.
  • Functional and technical analysis of issues and problems.
  • Liaison with functional experts and end users.
  • Analyse business processes and the IT systems usage therein.
  • Oplossen van diverse functionele vraagstukken in de energiemarkt: berekenen gas jaarverbruiken ; splitsen gasverbruiken mbv profielenmethodiek ; verzamelfacturatie.

 

Mar 2000 – Jan 2005

Operational Systems Support

Manchester and Liverpool Airport

Aviation Industry

Manchester, UK

AMOSS: Airport Management and Operations Support System

Freelance / Contracting

Support : Oracle DBA

  • The provision of out of hours 3rd line operational systems support for the AMOSS system and related systems at Manchester and Liverpool airport. User base: 250 clients, 2 database servers, 1 application server.
  • Finding faults in system interfaces: system messages (MS message queue, flat files, database links), communication protocols (TCP/IP, serial comms, ODBC)
  • DBA support for the Oracle databases.

 

Jun 2003 - May 2004

Oracle, Access & SQL Server developer

Swinton Insurance

Insurance Broker

Manchester, UK

Most major MI and retail systems

Freelance / Contracting

Oracle7 : PL/SQL : Access97 : SQL Server 2000 : T-SQL (stored procedures) : DTS : VB6 : UML : UNIX : shell scripting : CITRIX : Visual Interdev : ASP : Document Production : VBA-Word : VB Reporting

  • Involved in small teams (2-4 colleages)  to develop new - maintain existing and reengineer old database systems at Swinton Insurance.
  • The main responsibilities were the production of program code, test plans and technical documentation. I fulfilled the role of the more senior developer, providing advice and coaching for other programmers. I also provided feedback to functional designers and business analysts.
  • I have been involved a number of key systems and projects at Swinton:
    Acquisitions MI: Front-end in MS Access linking to an Oracle database.
    Customer Development System (CDS). Reengineered this old and largely undocumented Oracle7 / UNIX system. Produced UML documentation.
    Customer Contact Database (CCD). Developed several aspects of this newly developed SQL Server system. T-SQL stored procedures, performance tuning. Data migration.
    Accidental Death Benefits system (ADB). Moved system from VB-Access to VB-SQL Server under CITRIX.
    Retentions MI. Extracting Oracle7 data into a SQL Server database.
    LCE: Live Customer Extract. Development of SQL and shell scripts. Performance tuning.
    Safeguard: Retail system to sell and track motorhome policies. VB6 to SQL Server. Designed and developed the VB reporting system and a document product system based on MS Word. Produced UML documentation

 


 

Jun 2002 – Mar 2003

Oracle, SQL Server developer

Swinton Insurance

Insurance Broker

Manchester, UK

CDS – Customer Development System

Freelance / Contracting

Oracle7 : Pro*C : Oracle DBA : PL/SQL : Access97 : SQL Server 2000 : SQL : TSQL : ADO : OLEDB : ODBC : shell scripting : SCO UNIX

  • Design and development of a data extraction utility to extract data from a very large Oracle database into SQL Server using SQL Server stored procedures. Design and development of an Access database front-end.
  • Reverse engineering of shell scripts and PL/SQL. Re-engineering, bugfixing, performance tuning of this Oracle on SCO UNIX system. Reinstalled system on a new SCO UNIX server.

 

 

 




Apr 2001 – Feb 2002

Senior Oracle Developer

Generis Technology

Systems for the Utility Market

Manchester, UK