Database-centred applications with heavy focus on GIS integration.
Aktualisiert am 16.04.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 01.08.2026
Verfügbar zu: 100%
davon vor Ort: 100%
Datenbanken
Geodatenverarbeitung
Requirements
.NET Framework
Python
QGIS
MS SQL Server
SQL
Oracle
PostgreSQL
Solution Architect
REST
Schnittstellenabstimmungen
GIS
Geoserver
Deutsch
Englisch
Spanisch

Einsatzorte

Einsatzorte

Düsseldorf (+50km) Berlin (+50km)
Deutschland, Schweiz, Österreich
I prefer working (mostly) remote outside the named cities (and their respecitve areas). If I have to be on-site regulary it might impact the Hourly Rate. Lets talk!
möglich

Projekte

Projekte

10 months
2025-07 - 2026-04

Development of GIS Middleware (GeoPlan)

Solution Architect C# REST Geodatenverarbeitung ...
Solution Architect
  • Creating a generalized GIS solution for supporting the Land Securing process of customers in the branch of Renewable Energies including a generalized and automatic data sync process
  • Defining a modular solution architecture and internal REST-APIs
  • Establishing event-driven processes for automatic land usage information generation and creating additional geographical features (such as buffer zones)
  • Implementing a GIS for AuotCAD Map 3D, Autodesk Civil 3D and QGis (via GeoServer) using either Autodesk Industry Model on Oracle Db or a solution on PostGIS
  • Implementing a graphical overview of the state of the Land Securing process using a Blazor Website and WFS/WMS technology
  • Implementing an automatic workflow to import ALKIS-NAS data using the open-source tool norGIS-Import
  • Teamlead and additional contribution to the project as Full Stack Developer
AutoCAD Map 3D Autodesk Industry Model QGIS Geoserver ALKIS-NAS Autodesk Civil 3D .NET Framework RabbitMQ Oracle Spatial and Graph PostGIS norGIS-Import Blazor
C# REST Geodatenverarbeitung SQL WFS WMS Softwarearchitektur Python WebAssembly
Renewable Energies
Remote
2 years
2023-08 - 2025-07

Development of a GIS Solution w/ Data Sync

Solution Architect C# REST Geodatenverarbeitung ...
Solution Architect
  • Creating individual GIS solutions for supporting the Land Securing process for multiple customers in the branch of Renewable Energies
  • Defining a modular solution architecture and internal REST-APIs
  • Establishing event-driven processes for automatic land usage information generation and creating additional geographical features (such as buffer zones)
  • Implementing a GIS for AuotCAD Map 3D and Autodesk Civil 3D using Autodesk Industry Model on an Oracle database
  • Implementing event-driven data syncs to connected softwares
  • Implementing an automatic workflow to import ALKIS-NAS data using an import tool of Autodesk
  • Specification of customer-specific APIs to individual project softwares, Zoho CRM or SharePoint
  • Teamlead and additional contribution to the project as Full Stack Developer
AutoCAD Map 3D Autodesk Industry Model QGIS Geoserver ALKIS-NAS Autodesk Civil 3D Docker .NET Framework Zoho Microsoft Sharepoint Microsoft Graph API Oracle Spatial and Graph RabbitMQ
C# REST Geodatenverarbeitung WFS WMS Workshop SQL Softwarearchitektur
Renewable Energy
Remote
2 years 7 months
2022-02 - 2024-08

Development Product-Calculation Software

Requirements Engineer Workshop Meilenstein C# ...
Requirements Engineer
  • Requirements Engineering of an individual Product-Calculation Software for a medium-sized travel business
  • Implementation of a development process w/ regular feedback loops (SCRUM-like)
  • Homogenizing existing data structures and processes of legacy software
  • Technical planning of the calculation logic and workflow
  • Technical planning of the System Architecture
  • Specification of interfaces to Booking Software and the Data-Warehouse
  • Teamlead and heavy additional contribution to the project as Full Stack Developer
MS SQL Server .NET Framework Microsoft IIS Blazor Atlassian JIRA GitHub
Workshop Meilenstein C# SQL WebForms WebAssembly Git
Tourism
Remote
1 year 8 months
2021-02 - 2022-09

Infor M3 Migration

Backend Developer SQL-Datenbanken SQL C# ...
Backend Developer
  • Participation as Backend Developer in a huge and international (German, Danish, American) team of project managers, developers and consultants for a migration of a complex legacy ERP system of smaller companies (Navision) to a cloud-based alternative (Infor M3) of their parent company
  • Analysis of existing data and reverse engineering of their structure after consulting responsible employees
  • Autonomous definition of mappings between the existing data structure and the target data structure after consulting consultants
  • Implementing these mappings as ETL processes using SSIS
  • Defining and refining a complex schedule to perform the data migration at a defined point in time for execution of the migration
  • Testing and refining data mappings and schedule in multiple iterations in collaboration with all stakeholders
Navision Infor M3 MS SQL Server Integration Services MS SQL Server XUnit GitHub
SQL-Datenbanken SQL C# Cloud Testing/QS/QM Git
Manufacturing
2 years 11 months
2019-02 - 2021-12

Development Storage-Management Software

Requirements Engineer C# ADO.NET Entity Framework SQL ...
Requirements Engineer
  • Requirement Engineering for a Storag-Management Software for multiple participants (merchants and manufacturers, small and mid-sized companies)
  • Technical planning of the implementation of logistic processes and trade events
  • Planning of interface to existing ERP software
  • Teamlead and additional contribution to the project as Full Stack Developer
MS SQL Datenbanken .NET Framework React REST GitHub
C# ADO.NET Entity Framework SQL REST Git
Manufacturing
Berlin
3 years 9 months
2014-12 - 2018-08

Multiple small Projects: Project-Management Software and GIS

Full Stack Developer C# Python CLR ...
Full Stack Developer

  • Requirements Engineering and Technical Concepts for small Tasks and Projects
  • Reverse Engineering and Debugging of legacy Software (Project-Management/ GIS)
  • Strategies for Refactoring / Replacement of GIS
  • Maintenance of Databases and Web-Services
  • Implementation of Interfaces between GIS and Project-Management Software
  • Implementation of Data Syncs of GIS and other Softwares
  • Development of QGis-Plugins in Python

C# Python CLR QGIS MS SQL Server .NET Framework
Renewable Energies
Remote
1 year 2 months
2013-11 - 2014-12

Development of Activity-Management Software w/ Working-Time and Vacation Management

Full Stack Developer C# SQL ASP.NET ...
Full Stack Developer
  • Assisting during Requirements Engineering
  • Documentation
  • Development of Core Application
  • Development of Interfaces to Project Management Software
  • Teamlead
MS SQL Datenbanken .NET Framework
C# SQL ASP.NET Telerik Requirements
Renewable Energy
Potsdam

Aus- und Weiterbildung

Aus- und Weiterbildung

6 years 11 months
2006-08 - 2013-06

Studies of Mathematics

Dipl.-Math. (Diploma in Mathematics), TU Berlin, Universidad de Granada
Dipl.-Math. (Diploma in Mathematics)
TU Berlin, Universidad de Granada
  • 1st Major Subject: Differential Geometries
  • 2nd Major Subject: Algebra
  • Additional Subject: Physics w/ focus on Theoretical Physics
  • Studying abroad in Spain for the duration of two semesters
  • Employment as Tutor for students of Engineering, Physics and Mathematics in a total of eight semesters
3 years 9 months
2002-08 - 2006-04

Apprenticeship w/ employment as IT Specialist for additional 9 months

Fachinformatiker / Systemintegration (i.e., Qualified IT Specialist w/ focus on System Integrations), Kreisverwaltung Gütersloh (Government Authority)
Fachinformatiker / Systemintegration (i.e., Qualified IT Specialist w/ focus on System Integrations)
Kreisverwaltung Gütersloh (Government Authority)
  • Network Administration
  • Testing and implementing Solutions for solving individual Customer-Requests (Client-Server-Solutions)
  • 1st-Level-Support
  • After successful completion: Employment as IT Specialist for additional 9 months until start of studies

Position

Position

I started my career at gip software development GmbH as Full Stack Developer. Over the years the focus changed to Requirement Engineering and later to the role as Solution Architect. Since I was always part of a small team I also contributed as Full Stack Developer to all my projects in all those years.


For my future position I also hope for a responsible role in solving challenging problems in meaningful projects, either as Full Stack Developer or Requirements Engineer or Solution Architect (or anything between). I also understand that ressource shortages, quick changes of circumstances or live happening need pragmatical solutions. However, for my future projects I hope for a role with an clearly outlined focus since I am convinced that fullfilling multiple roles in a project has its limitations.

Kompetenzen

Kompetenzen

Top-Skills

Datenbanken Geodatenverarbeitung Requirements .NET Framework Python QGIS MS SQL Server SQL Oracle PostgreSQL Solution Architect REST Schnittstellenabstimmungen GIS Geoserver

Schwerpunkte

Requirements Engineering
Experte
Workshops
Experte
Milestones
Experte

Aufgabenbereiche

Key Account Management
Fortgeschritten
Teamlead
Fortgeschritten
Solution Architect
Experte

Produkte / Standards / Erfahrungen / Methoden

Blazor
Fortgeschritten
WebAssembly
Basics
easyLogic (TRENZ GmbH)
Experte
Entity Framework
Experte
.NET Framework
Experte
.NET
Experte
SSIS
Experte
Telerik UI
Fortgeschritten
WebForms
Fortgeschritten
WPF
Fortgeschritten
Git
Fortgeschritten
GitHub
Fortgeschritten
Docker
Basics
QGis
Fortgeschritten
AutoCAD Map 3D
Fortgeschritten
Civil 3D
Fortgeschritten
GeoServer
Fortgeschritten
Autodesk Industry Model
Fortgeschritten
gitHub Copilot
Fortgeschritten
Mistral Vibe
Fortgeschritten
Claude Code
Basics
LaTex
Experte
MS Office
Fortgeschritten
SCRUM
Fortgeschritten
Kanban
Fortgeschritten
JIRA
Experte
Confluence
Experte
ETL
Experte
GIS
Experte
Spatial Data
Experte

Programmiersprachen

C#
Experte
JavaScript
Fortgeschritten
Python
Fortgeschritten
VB.net
Basics
VBA
Fortgeschritten
HTML
Fortgeschritten
SQL
Experte

Datenbanken

SQL Server
Experte
PostgreSQL/PostGIS
Experte
Oracle DB
Fortgeschritten

Branchen

Branchen

  • Renewable Energies
  • Tourism

Einsatzorte

Einsatzorte

Düsseldorf (+50km) Berlin (+50km)
Deutschland, Schweiz, Österreich
I prefer working (mostly) remote outside the named cities (and their respecitve areas). If I have to be on-site regulary it might impact the Hourly Rate. Lets talk!
möglich

Projekte

Projekte

10 months
2025-07 - 2026-04

Development of GIS Middleware (GeoPlan)

Solution Architect C# REST Geodatenverarbeitung ...
Solution Architect
  • Creating a generalized GIS solution for supporting the Land Securing process of customers in the branch of Renewable Energies including a generalized and automatic data sync process
  • Defining a modular solution architecture and internal REST-APIs
  • Establishing event-driven processes for automatic land usage information generation and creating additional geographical features (such as buffer zones)
  • Implementing a GIS for AuotCAD Map 3D, Autodesk Civil 3D and QGis (via GeoServer) using either Autodesk Industry Model on Oracle Db or a solution on PostGIS
  • Implementing a graphical overview of the state of the Land Securing process using a Blazor Website and WFS/WMS technology
  • Implementing an automatic workflow to import ALKIS-NAS data using the open-source tool norGIS-Import
  • Teamlead and additional contribution to the project as Full Stack Developer
AutoCAD Map 3D Autodesk Industry Model QGIS Geoserver ALKIS-NAS Autodesk Civil 3D .NET Framework RabbitMQ Oracle Spatial and Graph PostGIS norGIS-Import Blazor
C# REST Geodatenverarbeitung SQL WFS WMS Softwarearchitektur Python WebAssembly
Renewable Energies
Remote
2 years
2023-08 - 2025-07

Development of a GIS Solution w/ Data Sync

Solution Architect C# REST Geodatenverarbeitung ...
Solution Architect
  • Creating individual GIS solutions for supporting the Land Securing process for multiple customers in the branch of Renewable Energies
  • Defining a modular solution architecture and internal REST-APIs
  • Establishing event-driven processes for automatic land usage information generation and creating additional geographical features (such as buffer zones)
  • Implementing a GIS for AuotCAD Map 3D and Autodesk Civil 3D using Autodesk Industry Model on an Oracle database
  • Implementing event-driven data syncs to connected softwares
  • Implementing an automatic workflow to import ALKIS-NAS data using an import tool of Autodesk
  • Specification of customer-specific APIs to individual project softwares, Zoho CRM or SharePoint
  • Teamlead and additional contribution to the project as Full Stack Developer
AutoCAD Map 3D Autodesk Industry Model QGIS Geoserver ALKIS-NAS Autodesk Civil 3D Docker .NET Framework Zoho Microsoft Sharepoint Microsoft Graph API Oracle Spatial and Graph RabbitMQ
C# REST Geodatenverarbeitung WFS WMS Workshop SQL Softwarearchitektur
Renewable Energy
Remote
2 years 7 months
2022-02 - 2024-08

Development Product-Calculation Software

Requirements Engineer Workshop Meilenstein C# ...
Requirements Engineer
  • Requirements Engineering of an individual Product-Calculation Software for a medium-sized travel business
  • Implementation of a development process w/ regular feedback loops (SCRUM-like)
  • Homogenizing existing data structures and processes of legacy software
  • Technical planning of the calculation logic and workflow
  • Technical planning of the System Architecture
  • Specification of interfaces to Booking Software and the Data-Warehouse
  • Teamlead and heavy additional contribution to the project as Full Stack Developer
MS SQL Server .NET Framework Microsoft IIS Blazor Atlassian JIRA GitHub
Workshop Meilenstein C# SQL WebForms WebAssembly Git
Tourism
Remote
1 year 8 months
2021-02 - 2022-09

Infor M3 Migration

Backend Developer SQL-Datenbanken SQL C# ...
Backend Developer
  • Participation as Backend Developer in a huge and international (German, Danish, American) team of project managers, developers and consultants for a migration of a complex legacy ERP system of smaller companies (Navision) to a cloud-based alternative (Infor M3) of their parent company
  • Analysis of existing data and reverse engineering of their structure after consulting responsible employees
  • Autonomous definition of mappings between the existing data structure and the target data structure after consulting consultants
  • Implementing these mappings as ETL processes using SSIS
  • Defining and refining a complex schedule to perform the data migration at a defined point in time for execution of the migration
  • Testing and refining data mappings and schedule in multiple iterations in collaboration with all stakeholders
Navision Infor M3 MS SQL Server Integration Services MS SQL Server XUnit GitHub
SQL-Datenbanken SQL C# Cloud Testing/QS/QM Git
Manufacturing
2 years 11 months
2019-02 - 2021-12

Development Storage-Management Software

Requirements Engineer C# ADO.NET Entity Framework SQL ...
Requirements Engineer
  • Requirement Engineering for a Storag-Management Software for multiple participants (merchants and manufacturers, small and mid-sized companies)
  • Technical planning of the implementation of logistic processes and trade events
  • Planning of interface to existing ERP software
  • Teamlead and additional contribution to the project as Full Stack Developer
MS SQL Datenbanken .NET Framework React REST GitHub
C# ADO.NET Entity Framework SQL REST Git
Manufacturing
Berlin
3 years 9 months
2014-12 - 2018-08

Multiple small Projects: Project-Management Software and GIS

Full Stack Developer C# Python CLR ...
Full Stack Developer

  • Requirements Engineering and Technical Concepts for small Tasks and Projects
  • Reverse Engineering and Debugging of legacy Software (Project-Management/ GIS)
  • Strategies for Refactoring / Replacement of GIS
  • Maintenance of Databases and Web-Services
  • Implementation of Interfaces between GIS and Project-Management Software
  • Implementation of Data Syncs of GIS and other Softwares
  • Development of QGis-Plugins in Python

C# Python CLR QGIS MS SQL Server .NET Framework
Renewable Energies
Remote
1 year 2 months
2013-11 - 2014-12

Development of Activity-Management Software w/ Working-Time and Vacation Management

Full Stack Developer C# SQL ASP.NET ...
Full Stack Developer
  • Assisting during Requirements Engineering
  • Documentation
  • Development of Core Application
  • Development of Interfaces to Project Management Software
  • Teamlead
MS SQL Datenbanken .NET Framework
C# SQL ASP.NET Telerik Requirements
Renewable Energy
Potsdam

Aus- und Weiterbildung

Aus- und Weiterbildung

6 years 11 months
2006-08 - 2013-06

Studies of Mathematics

Dipl.-Math. (Diploma in Mathematics), TU Berlin, Universidad de Granada
Dipl.-Math. (Diploma in Mathematics)
TU Berlin, Universidad de Granada
  • 1st Major Subject: Differential Geometries
  • 2nd Major Subject: Algebra
  • Additional Subject: Physics w/ focus on Theoretical Physics
  • Studying abroad in Spain for the duration of two semesters
  • Employment as Tutor for students of Engineering, Physics and Mathematics in a total of eight semesters
3 years 9 months
2002-08 - 2006-04

Apprenticeship w/ employment as IT Specialist for additional 9 months

Fachinformatiker / Systemintegration (i.e., Qualified IT Specialist w/ focus on System Integrations), Kreisverwaltung Gütersloh (Government Authority)
Fachinformatiker / Systemintegration (i.e., Qualified IT Specialist w/ focus on System Integrations)
Kreisverwaltung Gütersloh (Government Authority)
  • Network Administration
  • Testing and implementing Solutions for solving individual Customer-Requests (Client-Server-Solutions)
  • 1st-Level-Support
  • After successful completion: Employment as IT Specialist for additional 9 months until start of studies

Position

Position

I started my career at gip software development GmbH as Full Stack Developer. Over the years the focus changed to Requirement Engineering and later to the role as Solution Architect. Since I was always part of a small team I also contributed as Full Stack Developer to all my projects in all those years.


For my future position I also hope for a responsible role in solving challenging problems in meaningful projects, either as Full Stack Developer or Requirements Engineer or Solution Architect (or anything between). I also understand that ressource shortages, quick changes of circumstances or live happening need pragmatical solutions. However, for my future projects I hope for a role with an clearly outlined focus since I am convinced that fullfilling multiple roles in a project has its limitations.

Kompetenzen

Kompetenzen

Top-Skills

Datenbanken Geodatenverarbeitung Requirements .NET Framework Python QGIS MS SQL Server SQL Oracle PostgreSQL Solution Architect REST Schnittstellenabstimmungen GIS Geoserver

Schwerpunkte

Requirements Engineering
Experte
Workshops
Experte
Milestones
Experte

Aufgabenbereiche

Key Account Management
Fortgeschritten
Teamlead
Fortgeschritten
Solution Architect
Experte

Produkte / Standards / Erfahrungen / Methoden

Blazor
Fortgeschritten
WebAssembly
Basics
easyLogic (TRENZ GmbH)
Experte
Entity Framework
Experte
.NET Framework
Experte
.NET
Experte
SSIS
Experte
Telerik UI
Fortgeschritten
WebForms
Fortgeschritten
WPF
Fortgeschritten
Git
Fortgeschritten
GitHub
Fortgeschritten
Docker
Basics
QGis
Fortgeschritten
AutoCAD Map 3D
Fortgeschritten
Civil 3D
Fortgeschritten
GeoServer
Fortgeschritten
Autodesk Industry Model
Fortgeschritten
gitHub Copilot
Fortgeschritten
Mistral Vibe
Fortgeschritten
Claude Code
Basics
LaTex
Experte
MS Office
Fortgeschritten
SCRUM
Fortgeschritten
Kanban
Fortgeschritten
JIRA
Experte
Confluence
Experte
ETL
Experte
GIS
Experte
Spatial Data
Experte

Programmiersprachen

C#
Experte
JavaScript
Fortgeschritten
Python
Fortgeschritten
VB.net
Basics
VBA
Fortgeschritten
HTML
Fortgeschritten
SQL
Experte

Datenbanken

SQL Server
Experte
PostgreSQL/PostGIS
Experte
Oracle DB
Fortgeschritten

Branchen

Branchen

  • Renewable Energies
  • Tourism

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