Stephan Zinke - GIS expert and database developer for passenger information systems

Q: Where is Stephan based?

Stephan is based in Brombachtal, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does Stephan speak?

Stephan speaks the following languages: German (Native), English (Advanced), French (Advanced), Russian (Advanced) .

Q: How many years of experience does Stephan have?

Stephan has at least 32 years of experience. During this time, Stephan has worked in at least 23 different roles and for 17 different companies . The average length of individual experience is 1 year and 4 months . Note that Stephan may not have shared all experience and actually has more experience.

Q: What is Stephan's latest experience?

Stephan's most recent position is GIS expert and database developer for passenger information systems at Deutsche Bahn AG .

Q: What companies has Stephan worked for in recent years?

In recent years, Stephan has worked for Deutsche Bahn AG , ieits integrated enterprise IT solutions GmbH , Wianco OTT Robotics GmbH , GOIO Data GmbH , and ZDSK and TANDEM-Frankfurt e.V. .

Q: Which industries is Stephan most experienced in?

Stephan is most experienced in industries like Information Technology (IT) , Space Exploration and Travel , and Government and Public Administration . Stephan also has some experience in Chemical , Transportation and Logistics , and Healthcare .

Q: Which business areas is Stephan most experienced in?

Stephan is most experienced in business areas like Information Technology (IT) , Project Management , and Product Development . Stephan also has some experience in Research and Development (R&D) and Business Intelligence .

Q: Which industries has Stephan worked in recently?

Stephan has recently worked in industries like Transportation and Logistics , Energy , and Education .

Q: Which business areas has Stephan worked in recently?

Stephan has recently worked in business areas like Information Technology (IT) , Business Intelligence , and Product Development .

Recommended expert

Brombachtal, Germany

Experience

Apr 2024 - Present

1 year 11 months

GIS expert and database developer for passenger information systems

Deutsche Bahn AG

Developed automated tools for train passenger information with PostgreSQL/PostGIS (administration & development)
Used imposm, osm2pgsql, pgsql2shp, GeoServer (WMS, WFS, WCS, etc.)
Used various geo formats, e.g. OpenStreetMap (OSM)
Technologies: PostgreSQL/PostGIS, imposm, osm2pgsql, pgsql2hp, ESRI Shapefiles, QGIS, Python 3.x, PyDev, Eclipse, Linux, AWS, OSM, XML, bash, pgsql, Docker

Mar 2022 - Dec 2022

10 months

Python software developer & data scientist

Deutsche Bahn AG

Developed an analysis framework for train run notifications as a basis for real-time data in passenger information systems
Technologies: Python 3.6, PyDev, Eclipse, PostgreSQL/PostGIS, data science

Dec 2021 - Dec 2021

1 month

Android app developer

ieits integrated enterprise IT solutions GmbH

Developed three apps: time tracking for mini jobs, web-based reporting, and analytical tracking of sales booking processes
Tracked performance metrics
Structured implementation with Android Studio and MySQL

Nov 2021 - Dec 2022

1 year 2 months

Senior digitalization consultant (international)

Wianco OTT Robotics GmbH

Installed, configured, and commissioned a new software version for a major energy supplier's workflow management system
Technologies: Fintus 2.1, MS SQL Server, Java, web, BPMN, Camunda

Apr 2021 - Apr 2021

1 month

PostgreSQL and Bitbucket expert, Python developer

GOIO Data GmbH

Architecture: set up a CI/CD pipeline for SQL commands
Developed an exporter
Technologies: PostgreSQL, Bitbucket, Python 3

Jan 2021 - Apr 2021

4 months

MS Access expert, Moodle development

ZDSK and TANDEM-Frankfurt e.V.

Integration of MS Access with Moodle
Documentation
Technologies: VBA, MS Access, Moodle

Dec 2020 - Jan 2021

2 months

MS Access expert

DekaBank

MS Access ODBC to Oracle troubleshooting and documentation
Technologies: VBA, MS Access, Oracle

May 2020 - May 2021

1 year 1 month

PostgreSQL and MS Access expert

Deutsche Bahn AG

Migration of an MS Access backend to PostgreSQL
Technologies: VBA, MS Access, PostgreSQL, Windows, PowerShell (DOS)

Feb 2020 - Feb 2020

1 month

MS SQL Server and MS Access expert

Deutsche Bahn AG

Conducted a feasibility study for migrating the MS Access research backend to MS SQL Server
Technologies: VBA, MS Access, MS SQL Server, Windows, PowerShell (DOS)

Dec 2019 - Dec 2019

1 month

C# developer

Wianco OTT Robotics GmbH

Development of text recognition components
Technologies: C#, MS Visual Studio 2019, ABBYY FineReader

Jul 2019 - Aug 2019

2 months

Peer-Reviewer

CSAE 2019, Sanya (China)

Reviewing technical papers for the CSAE 2019 conference (blind peer review)
Role: Team leader

Jul 2016 - Oct 2016

4 months

Database administrator

ieits integrated enterprise IT solutions GmbH

Conducting a case study for the database migration from Oracle to PostgreSQL/PostGIS for the EUMETSAT long-term archive (UMARF)
Project controlling and release management on time and on budget
Technologies: Oracle 12g, PostgreSQL/PostGIS 8.3

Aug 2013 - Apr 2019

5 years 9 months

Software and system engineering consultant, project lead for the EUMETSAT Advanced Retransmission System (EARS)

ieits integrated enterprise IT solutions GmbH

Overall responsible for the EARS system requirements and design
Complete redesign for EARS 2.0
Publishing articles in trade press
Participating in international pre-sales reviews
Technologies: Java 5–8, Linux, PostgreSQL, Oracle, HTML, JScript, SQL, XML, Python 2/3, Apache ActiveMQ

Aug 2010 - Aug 2013

3 years 1 month

System engineering consultant, project lead for the EUMETSAT long-term archive (UMARF)

EUMETSAT

Responsible for designing extensions to the UMARF (long-term archive) and EOPortal (web ordering application) for Sentinel 3
Participating in international reviews
Technologies: Java 5–8, C++, Linux, Windows, Oracle 11g/12g, PostgreSQL/PostGIS, HTML, JScript, CORBA, XML, Jenkins, Maven, REST

May 2005 - Aug 2010

5 years 4 months

Project manager, lead software engineer

RapidEye AG

Software and system engineering for the ground segment of RapidEye
Leading various customer projects, including map creation with PostgreSQL/PostGIS, CCSDS GeoServer, QGIS
Lead software engineer and designer of the Product Processing System
Named the ISO 9001-certified five RapidEye satellites
Participating in international reviews
Technologies: Java 4–6, Swing, C++, HTML, PostgreSQL/PostGIS, ESRI ArcGIS, XML, JScript, WMS, WFS, UML, WCS, GeoServer, imposm, osm2pgsql, pgsql2shp

May 2003 - Nov 2004

1 year 7 months

Software Developer, Project Manager

Alpha Travel Consultants GmbH

Re-implementation of a web-based application for online booking and management for resellers of travel packages
Managing the offsite development team in Belarus
Technologies: MS .NET, C#, JScript, Ajax, Visual Studio, Eclipse

May 1998 - May 2005

7 years 1 month

Head of Software Development, Project Manager, Consultant, and Software Developer

CMO Information Systems GmbH

Performing all software engineering tasks as a project manager
Technologies: C++, Java, MFC, Oracle 7–9, MS SQL Server, MySQL, C#, XML, XSL, XSD, WSDL, Windows, DOS, IIS, ATL, STL, COM/DCOM, OCX, RPC, OLE, ODBC

Jan 1998 - Apr 1998

4 months

System Administrator and Software Developer

SDC GmbH (now CMG Deutschland GmbH)

System administration and software development for Commerzbank
Technologies: Windows, Linux, Oracle, MS SQL Server, VBA, C++

Apr 1997 - Dec 2005

8 years 9 months

Software Developer, Research Associate

Federal Institute for Consumer Health Protection and Veterinary Medicine (BgVV)

Conducting several research projects on replacing animal testing in chemical evaluation
Technologies: Windows, MS Access, DOS

May 1996 - Dec 1997

1 year 8 months

Research Associate and Software Developer

Federal Institute for Consumer Health Protection and Veterinary Medicine (BgVV)

Developing a computer-based expert system to predict toxic effects of chemicals on skin and eyes
Publishing articles in professional journals
Technologies: MS Access, VBA

Feb 1995 - Sep 1995

8 months

Software developer

NOVUM GmbH

Development of an MS Access-based application for the administration of real estate data
Technologies: MS Access, VBA

Dec 1993 - Mar 1994

4 months

Instructor / Trainer

Senatsverwaltung von Berlin

Instructor for MS Office applications (Word, Excel)

Jul 1992 - Jun 1994

2 years

Software developer

debis CCS GmbH

Software development of medical application software for doctors in private practice
Technologies: Turbo Pascal, dBase

Feb 1990 - Oct 1992

2 years 9 months

Assistant to the plant manager

IBM Deutschland GmbH

Software development and creation of presentations

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (22.5 years), Space Exploration (14 years), Government and Administration (10 years), Chemical (8.5 years), Transportation (3.5 years), and Healthcare (3.5 years).

Information Technology

Space Exploration

Government and Administration

Chemical

Transportation

Healthcare

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (32 years), Project Management (21 years), Product Development (17.5 years), Research and Development (9.5 years), and Business Intelligence (1 year).

Information Technology

Project Management

Product Development

Research and Development

Business Intelligence

Skills

Programming Languages

Oracle
Ms Sql Server
Postgresql/postgis
C++
Python
C
Dbase
Ms Access
Shell Scripting
C#
Assembly
Vb
Sql
Java
Spss
.Net
R
Mathematica
Statistica
Matlab

Web Development

Xml
Soap
Xsl
Jsp
Xsd
Php
Xpath
Pci Geomatica
Esri
Asp.net
Xquery
Gdal
Vbscript
Html
Openjump
Jscript
Asp

Operating Systems

Unix/linux
Ms Windows

Languages

German

Native

English

Advanced

French

Advanced

Russian

Advanced

Education

Apr 1990 - Apr 1995

Technical University (TU) Berlin

Diploma in computer science, thesis: robotics · General Computer Science · Berlin, Germany

Aug 1987 - Feb 1990

IBM Deutschland GmbH

Certificate from IHK Berlin (with distinction) · Information electronics technician, focus on communication technology · Berlin, Germany

Aug 1980 - Jun 1987

Albert Schweitzer High School

Abitur (grade 1.3) · Berlin, Germany

Certifications & licenses

Certified RPA Practitioner

Professional Scrum Owner (PSPO I)

scrum.org

Professional Scrum Master (PSM I)

scrum.org

Professional Scrum Product Owner

alfatraining, Darmstadt

Professional Scrum Master

alfatraining, Darmstadt

Profile

Created

February 2024

Last Update

December 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Stephan based?

Stephan is based in Brombachtal, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Stephan speak?

Stephan speaks the following languages: German (Native), English (Advanced), French (Advanced), Russian (Advanced).

How many years of experience does Stephan have?

Stephan has at least 32 years of experience. During this time, Stephan has worked in at least 23 different roles and for 17 different companies. The average length of individual experience is 1 year and 4 months. Note that Stephan may not have shared all experience and actually has more experience.

What roles would Stephan be best suited for?

Based on recent experience, Stephan would be well-suited for roles such as: GIS expert and database developer for passenger information systems, Python software developer & data scientist, Android app developer.

What is Stephan's latest experience?

Stephan's most recent position is GIS expert and database developer for passenger information systems at Deutsche Bahn AG.

What companies has Stephan worked for in recent years?

In recent years, Stephan has worked for Deutsche Bahn AG, ieits integrated enterprise IT solutions GmbH, Wianco OTT Robotics GmbH, GOIO Data GmbH, and ZDSK and TANDEM-Frankfurt e.V..

Which industries is Stephan most experienced in?

Stephan is most experienced in industries like Information Technology (IT), Space Exploration and Travel, and Government and Public Administration. Stephan also has some experience in Chemical, Transportation and Logistics, and Healthcare.

Which business areas is Stephan most experienced in?

Stephan is most experienced in business areas like Information Technology (IT), Project Management, and Product Development. Stephan also has some experience in Research and Development (R&D) and Business Intelligence.

Which industries has Stephan worked in recently?

Stephan has recently worked in industries like Transportation and Logistics, Energy, and Education.

Which business areas has Stephan worked in recently?

Stephan has recently worked in business areas like Information Technology (IT), Business Intelligence, and Product Development.

What is Stephan's education?

Stephan attended Technical University (TU) Berlin for General Computer Science.

Does Stephan have any certificates?

Stephan has 5 certificates. Among them, these include: Certified RPA Practitioner, Professional Scrum Owner (PSPO I), and Professional Scrum Master (PSM I).

What is the availability of Stephan?

Stephan is immediately available full-time for suitable projects.

What is the rate of Stephan?

Stephan's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.