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Stephan Z.

GIS Expert and Database Developer in Traveler Information Systems

Brombachtal, Germany

Experience

Apr 2024 - Present
1 year 5 months

GIS Expert and Database Developer in Traveler Information Systems

Deutsche Bahn AG

  • Developed automated tools for passenger information using PostgreSQL/PostGIS (administration & development), imposm, osm2pgsql, pgsql2shp, GeoServer (WMS, WFS, WCS, etc.), and various geo formats like OpenStreetMap (OSM).
  • PostgreSQL/PostGIS, imposm, osm2pgsql, pgsql2shp, (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 movement reports, forming the basis for real-time data in traveler information systems.
  • 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 and reporting (Web)
  • Analytical tracking of sales transactions
  • Tracking performance metrics
  • Android Studio, MySQL
Nov 2021 - Dec 2022
1 year 2 months

Senior Digitalization Consultant

Wianco OTT Robotics GmbH

  • Installed, configured, and commissioned a new software version for the workflow management system of a major energy provider.
  • Fintus 2.1, MS SQL Server, Java, Web, BPMN, Camunda
Apr 2021 - Apr 2021
1 month
Germany

PostgreSQL and BitBucket Expert, Python Developer

GOIO Data GmbH

  • Set up a CD pipeline for SQL commands and developed an exporter.
  • PostgreSQL, BitBucket, Python 3
Jan 2021 - Apr 2021
4 months
Germany

MS Access Expert, Moodle Developer

ZDSK und TANDEM-Frankfurt e.V.

  • MS Access integration with Moodle.
  • VBA, MS Access, Moodle
Dec 2020 - Jan 2021
2 months
Germany

MS Access Expert

DekaBank

  • Troubleshooting and documenting MS Access ODBC to Oracle.
  • VBA, MS Access, Oracle
May 2020 - May 2021
1 year 1 month
Germany

PostgreSQL and MS Access Expert

Deutsche Bahn AG

  • Migrated an MS Access backend to PostgreSQL.
  • VBA, MS Access, PostgreSQL, Windows, PowerShell (DOS)
Feb 2020 - Feb 2020
1 month
Germany

MS SQL Server and MS Access Expert

Deutsche Bahn AG

  • Conducted a feasibility study for migrating the MS Access backend to MS SQL Server.
  • VBA, MS Access, MS SQL Server, Windows, PowerShell (DOS)
Dec 2019 - Dec 2019
1 month
Germany

C# Developer

Wianco OTT Robotics

  • Developed components for text recognition.
  • C#; MS Visual Studio 2019, ABBYY FineReader
Jul 2019 - Aug 2019
2 months
Sanya, China

Peer Reviewer

CSAE 2019

  • Reviewed technical papers for the CSAE 2019 conference (blind peer review).
Jul 2016 - Oct 2016
4 months
Brombachtal, Germany

Database Administrator

ieits integrated enterprise IT solutions GmbH

  • Carried out a case study for migrating databases from Oracle to PostgreSQL/PostGIS for the EUMETSAT Long Term Archive (UMARF).
  • Oracle 12g, PostgreSQL/PostGIS 8.3.
  • On time / on budget.
Aug 2013 - Apr 2019
5 years 9 months
Brombachtal, Germany

Software and System Engineering Consultant

ieits integrated enterprise IT solutions GmbH

  • Software and system engineering consultant and project lead for EUMETSAT Advanced Retransmission System (EARS).
  • Java (5-8), Linux, PostgreSQL, Oracle, HTML, JScript, SQL, XML, Python 2/3, Apache ActiveMQ.
  • Main responsible for EARS system requirements and design.
  • Complete re-design for EARS 2.0.
  • Published articles in trade journals.
  • Participated in international reviews.
Aug 2010 - Aug 2013
3 years 1 month
Darmstadt, Germany

System Engineering Consultant

EUMETSAT

  • Software and system engineering consultant and project lead for the EUMETSAT Long Term Archive (UMARF).
  • Java (5-8), C++, Linux, Windows, Oracle 11g/12g, PostgreSQL/PostGIS, HTML, JScript, CORBA, XML, Jenkins, Maven, REST.
  • Design lead for UMARF and EOPortal extensions for Sentinel-3.
  • Participated in international reviews.
May 2005 - Aug 2010
5 years 4 months
Brandenburg, Germany

Project Manager, Lead Software Engineer

RapidEye AG

  • Software and system engineer for RapidEye’s ground segment.
  • Led various client projects, including map creation using spatial data and geo formats for analysis with PostgreSQL/PostGIS, GeoServer, QGIS, etc.
  • Java (4-6), Swing, C++, HTML, PostgreSQL/PostGIS, ESRI ArcGIS, XML, JScript, WMS, WFS, WCS, GeoServer, imposm, osm2pgsql, pgsql2shp.
  • Lead software engineer and designer of the Product Processing System.
  • Named the five RapidEye satellites.
  • Participated in international reviews.
May 2003 - Nov 2004
1 year 7 months
Berlin, Germany

Software Developer, Project Lead

Alpha Travel Consultants GmbH

  • Re-implemented a web-based application for online booking and management for travel arrangement resellers.
  • MS .NET, C#, JScript, Ajax.
  • Managed the offsite development team in Belarus.
May 1998 - May 2005
7 years 1 month
Berlin, Germany

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

CMO Information Systems GmbH

  • Handled all software engineering tasks.
  • Project lead.
  • 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
Berlin, Germany

System Administrator and Software Developer

SDC GmbH (now CMG Deutschland GmbH)

  • System administrator and software developer for Commerzbank.
  • Windows, Linux, Oracle, MS SQL Server, VBA, C++.
Apr 1997 - Dec 2005
8 years 9 months
Berlin, Germany

Software Developer, Research Associate

Federal Institute for Health Protection of Consumers and Veterinary Medicine (BgVV), now Federal Institute for Risk Assessment

  • Carried out several research projects on replacing animal testing in chemical assessment.
  • Windows, MS Access, DOS.
  • 2004 Dorothy Hegarty Award for the best paper published in ATLA 32.
May 1996 - Dec 1997
1 year 8 months
Berlin, Germany

Research Associate and Software Developer

Federal Institute for Health Protection of Consumers and Veterinary Medicine (BgVV), now Federal Institute for Risk Assessment

  • Developed a computer-based expert system to predict potential toxicological effects of chemicals on skin and eyes.
  • MS Access, VBA.
  • Published articles in trade journals.
Feb 1995 - Sep 1995
8 months
Blankenfelde-Mahlow, Germany

Software Developer

NOVUM GmbH

  • Developed an MS Access-based application for property data administration.
  • MS Access, VBA.
Dec 1993 - Mar 1994
4 months
Berlin, Germany

Instructor / Trainer

Berlin Senate Administration

  • Instructor for MS Office applications (Word, Excel).
Jul 1992 - Jun 1994
2 years
Berlin, Germany

Software Developer

debis CCS GmbH

  • Developed medical application software for private specialists.
  • Turbo Pascal, dBase.
Feb 1990 - Oct 1992
2 years 9 months
Berlin, Germany

Assistant to the Plant Manager

IBM Germany GmbH

  • Software development and presentation creation.

Languages

German
Native
English
Advanced
French
Advanced
Russian
Advanced

Education

Apr 1990 - Apr 1995

Technical University of Berlin

Diploma in Computer Science, Robotics Department · General Computer Science · Berlin, Germany

Aug 1987 - Feb 1990

IBM Germany GmbH

Specialization in Communication Technology · Information Electronics · Berlin, Germany

Aug 1980 - Jun 1987

Albert-Schweitzer-Oberschule

Abitur · Berlin, Germany · 1.3

Certifications & licenses

Certified RPA Practitioner

Professional Scrum Owner (PSPO I)

scrum.org

Professional Scrum Master (PSM I)

scrum.org

Professional Scrum Product Owner

alfatraining

Professional Scrum Master

alfatraining

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