PostGIS Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used PostGIS
Boris Solos
Last position:
Generalist expert for software development at Mercor
- Training the AI models, evaluating images and texts for UI/UX, turning the provided data into insights via OpenAI Feather as part of the machine learning workflow
Technologies: OpenAI Feather
Rainer Langbehn
Last position:
Senior IT Consultant, Senior Software Architect, Senior Software Developer, Senior DevOps Engineer at Techniker Krankenkasse
Automation of the database major / minor releases for the TKeasy project
Concept for database major / minor release automation
As-is analysis
Evaluation of Redgate Flyway functionality
Concept creation
Products: Redgate Flyway, GitHub, Quest, Erwin Data Modeller, Oracle, Atlassian Jira, Atlassian Confluence
Skills: Docker, Continuous Delivery, Continuous Integration, Redgate Flyway, Major Releases, Minor Releases
Florian Fladung
Last position:
Senior Backend Developer at ING Deutschland AG
- Database design with Oracle DB, JPA and Flyway considering high performance requirements
- Analysis of multiple architecture drafts and identification of technical risks
- Design and implementation of various interfaces and integrations, especially REST APIs and Kafka topics
- Setup of Elasticsearch for monitoring and analyzing log data
- Establishment of an iterative work approach in the project team facing complex business requirements
Felix Maas
Last position:
AI Trainer at AKIA Academy for AI & Automation
- Led the 12-week training program to become an AI and automation specialist
- Created training materials & video courses on "AI Fundamentals", "Working with ChatGPT", "Prompt Engineering", "AI Agents with N8N", "Automations with Make.com" & AI-generated marketing content (images, videos, blog posts & social media posts)
- Conducted workshops on the above topics
- Tools: Loom, N8N, Make.com, ChatGPT, Midjourney, Gamma.app, Canva, Kling AI, Magnific AI
- Result: Participants learn the technical and business know-how to successfully build a business as AI and automation specialists
Alexander Kapincev
Last position:
Senior Fullstack Developer at Deutsche Vermögensberatung AG (DVAG)
- Further development and maintenance of a complex sales platform focused on digital closing processes, customer portal interactions, and document generation for financial and insurance products
- Development and maintenance of microservices with Spring Boot 3 and Kotlin
- Frontend development with Angular 20 to display products, applications, and documents
- Conducting end-to-end tests with Playwright and integration tests with WireMock
- Creating and optimizing Quartz jobs and CronJobs
- Refactoring the security configuration in a multi-realm Keycloak setup with custom FilterChain, permission evaluator, and factory routing
- Creating dynamic emails with Thymeleaf
- Extensive error analysis with Application Insights, Log Analytics, and direct SQL debugging
- Introducing a dynamically controllable security architecture with flexible token processing based on path and realm
- Stabilizing and clearly structuring the closing process for complex product models
- Significantly increased maintainability and readability of code through modular refactorings
- Improved test stability and depth by combining Playwright, WireMock, and integration tests
- Targeted performance optimization through analysis of Hibernate statistics, query tuning, and use of SQL execution plans
- Technologies used: Java 21, Kotlin, Spring Boot 3, Angular, TypeScript, REST API, JSON, Kubernetes, Docker, PostgreSQL, Liquibase, Keycloak, OAuth2, GitHub Actions, Testcontainers, Azure Application Insights, Thymeleaf, Tilt, Microsoft SQL Server
Arnav Sarkar
Last position:
Scientific Assistant (HIWI) at Institute of Transport and Automation Engineering, Production Technology Center, Leibniz University Hannover
- Implemented stereo camera calibration and applied incremental Structure from Motion (SfM) algorithms to build a detailed 3D model of a forklift for an AR-enabled Smart Forklift project
- Developed OpenCV-based preprocessing that improved data accuracy by 20% and enhanced the analysis of industrial videos
Max Degterev
Last position:
Tech Lead, Interim CTO/CPO at MatchDispatch
I worked on automating cold outreach.
- Developed a queue architecture to support the parallel execution of large volumes of background tasks.
- Integrated multiple email delivery providers.
- Implemented an LLM-based data enrichment process.
Technologies: TypeScript, React, Node.js, Next.js, Drizzle ORM, PostgreSQL, Next-Auth, JWT, Docker, Kubernetes, AWS, CloudFlare, Traefik, Groq, Jest, Figma
Ralph Elsäßer
Last position:
Geoinformatics Specialist, Digitalization Expert at Luvent / GIZ
- Presentation of the potential of artificial intelligence for agriculture at the Pan-African Startup Conference in Algiers.
- Planning and delivery of the AI master class at the conference.
- Mentoring 10 startups to introduce innovative technologies into their products and services, including processing weather forecast data to create geo-localized, product-specific work instructions for farmers in Algeria.
Florian Knopf
Last position:
Senior Fullstack Developer — GIS & Cloud at EnBW
- Automated decentralized manual planning of power grid construction projects using a cloud-native GIS platform integrating geodata analysis, infrastructure planning, and cost estimation
- Designed a cloud-native multi-language architecture with Azure Cloud Functions
- Integrated ArcGIS/Vertigis and developed JavaScript-based Vertigis workflows for interactive GIS planning tools
- Developed Python-based cloud functions to automate analysis of complex geodata sets
- Implemented specialized algorithms for power grid topologies and construction planning with Shapely and GeoPandas
- Built interfaces between GIS platforms and existing planning systems with uniform API conventions, consistent response structures, and error handling
- Set up a Pytest unit test pipeline and automated CI/CD processes using Azure Pipelines
- Optimized performance of geospatial calculation algorithms for large datasets
Mostafa Shawki
Last position:
Freelance Senior Software Engineer & AI Consultant at Self-employed
- Led the development of a complex geospatial data platform, engineering an end-to-end system for processing and analyzing high-resolution aerial imagery.
- Engineered a scalable backend responsible for on-the-fly map tile serving and running complex data analysis queries using PostGIS and Python.
- Developed and trained custom computer vision models using Python, PyTorch, and YOLOv8 to perform object detection and segmentation on large-scale datasets.
- Built modern, responsive user interfaces and data visualization dashboards using Next.js, TypeScript, and React.
- Gained practical expertise in geospatial libraries such as GDAL and Rasterio for processing and manipulating raster and vector data.
- Managed the entire project lifecycle, from initial technical architecture and database design to final deployment using Docker.
Alishiba Florian Dsouza
Last position:
Research Assistant at University of Bonn
- Led data engineering and machine learning efforts for large-scale Knowledge Graph creation of WorldKG
- Developed pipelines for heterogeneous data integration (OpenStreetMap, Wikidata, DBpedia) using Python and SQL
- Designed neural architectures (Transformers, adversarial networks) for schema and entity alignment
- Created scalable ETL workflows to harmonize structured and unstructured geographic information
- Applied semantic modeling and SPARQL-based querying for data fusion and governance
- Mentored master’s students on AI, spatiotemporal data, and Knowledge Graph topics, fostering practical experimentation and innovation
Georg Herbrand
Last position:
Entrepreneur and Freelancer at ispacom - intelligent spatial computing GmbH
- Software development, project management, and consulting focused on ArcGIS, network information systems, forecasting, and simulation in network planning
- Business analysis through training with a focus on geographic information systems (GIS) and data processing
- Senior GIS strategy (ESRI) & technology consultant and network modeling as well as FTTX | 5G assessment at 1&1 Versatel (04/2022–present)
- Requirements engineering, project management and solution design as well as implementation for mobile geodata collection at NETZE-BW (EnBW, 10/2021–present)
Benedikt Buchner
Last position:
Fullstack Developer at Nimevio
- Requirements analysis and planning of the software architecture
- Analysis and design of REST APIs
- Backend development with Java 17, Spring Boot, Spring MVC, and Spring Data
- Frontend development with Angular and TypeScript
- Setting up CI/CD pipelines
- Code review, QA, and testing
- Using MySQL, Docker, the ELK stack, and RabbitMQ
Stephan Martin
Last position:
Sabbatical, professional development at Self-employed
- Further training in Snowflake and Google Looker
- Working with LLMs: local models (Llama, Mistral, Gemma, Phi, Qwen, DeepSeek, Bitnet, Flux, Whisper), OpenAI API, frontends (ollama, openwebui, loacalai)
- Inference methods: llama.cpp, vLLM, transformer
- Quantization, benchmarking, prompting
- LLM Agents (Tool/Function Calling, LangChain, LangGraph, MCP)
- Topics: attention, reasoning, chain of thoughts, RAG, GraphRAG, mlflow
- Cloud hosted: ChatGPT, Claude, Gemini
Stephan Zinke
Last position:
GIS expert and database developer for passenger information systems at 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
Discover over 15,000 top freelancers
Statistics of experts using PostGIS
Aggregated from the professional profiles of matched freelancers.
Experience
19 years
Position duration
1.8 years
Positions per freelancer
14
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Transportation, Government and Administration
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
89%
Master's degree or higher
61%
Doctorate
22%
Certifications per freelancer
2
Most common languages
English, German, Russian
Speak two or more languages
100%
Based on our profile pool as of 30 Aug 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Germany are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.
Average rates of experts in Germany using PostGIS
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
Spatial data on PostgreSQL
PostGIS adds spatial types, functions, and indexes to PostgreSQL. It is used to store points, lines, polygons, and geographies, then query them with spatial logic that goes beyond plain SQL.
What teams build
- Location search and proximity filters
- Map layers, boundaries, and territory views
- Route, service-area, and coverage queries
- Geospatial reporting and dashboards
It fits products that need distance checks, joins between business data and geometry, and reliable location-aware storage.
Useful ecosystem
Strong specialists work comfortably with PostgreSQL tools around the core extension: SQL, indexes, GIS import and export formats, and mapping stacks such as GeoJSON or raster workflows when needed. They also know how to keep geometry clean and queries readable.
When to bring in freelance help
Companies usually look for freelance help when spatial queries are slow, data imports are messy, or a new mapping feature needs a clean database design. In Germany, this often comes up in logistics, real estate, mobility, utilities, and public-sector systems where location data is part of daily operations.
What strong professionals do
- Choose the right geometry or geography type
- Design spatial indexes that match the query pattern
- Write efficient joins, filters, and distance checks
- Validate projections, coordinate systems, and data quality
The best professionals also explain trade-offs clearly, so product and backend teams can keep working without guesswork.
Signs of real PostGIS skill
A good specialist can read execution plans, spot expensive spatial operations, and fix data issues before they reach production. They should know when to simplify a query, precompute results, or restructure tables so the database stays stable as the dataset grows.
Frequently asked questions
Key details about PostGIS, drawn from the questions we get asked most.
PostGIS is used to make PostgreSQL handle spatial data and spatial queries. Teams use it for nearby searches, boundary checks, map layers, route logic, and any feature that depends on location rather than simple text or numbers.
PostGIS adds the spatial types and functions that plain PostgreSQL does not provide out of the box. Without it, teams usually end up with custom logic that is harder to maintain and less accurate for geometry-heavy work.
PostGIS is the better fit when spatial data needs to live close to the rest of the application data. It works well when product teams need SQL joins, transactional consistency, and location-aware queries in the same system.
A strong PostGIS specialist usually knows PostgreSQL well, including indexes, query planning, and schema design. Helpful extras are SQL, data import and export, GeoJSON, coordinate reference systems, and application-layer integration.
PostGIS work can start simple, but production systems need someone who understands spatial indexes, data types, and performance tuning. If the project has many filters, large datasets, or complex polygons, seasoned expertise matters quickly.
Yes, PostGIS work is often done remotely, especially for schema design, query tuning, and feature implementation. On-site time can help when teams need workshops around data modeling, but it is usually not required.
A good PostGIS freelancer can explain why a query is slow, which index helps, and how they would test the result. Look for clear examples of spatial joins, distance searches, geometry cleanup, and careful handling of coordinate systems.
PostGIS specialists often fix slow map queries, bad imports, inconsistent coordinates, and overly complex spatial filters. They also help when teams need to move from basic location storage to reliable geospatial features that users can trust.
The average hourly rate of freelancers in Germany who have used PostGIS in their recent projects is 94 €, which corresponds to a daily rate of about 755 € based on an 8-hour working day.
Of the freelancers in Germany who have used PostGIS in their recent projects, 89% hold at least a Bachelor's degree, 61% hold at least a Master's degree, and 22% hold a doctorate.
On average, freelancers in Germany who have used PostGIS in their recent projects have 19 years of professional experience, with a single engagement typically lasting around 1.8 years.
The most common languages among freelancers in Germany who have used PostGIS in their recent projects are English (100%), German (95%), and Russian (19%).
The most common industries among freelancers in Germany who have used PostGIS in their recent projects are Information Technology (90%), Transportation (52%), and Government and Administration (52%).
The most common business areas among freelancers in Germany who have used PostGIS in their recent projects are Information Technology (100%), Product Development (95%), and Project Management (67%).
Main locations of FRATCH Experts, who have recently used PostGIS
Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.
Berlin Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
