Christoph Heer
Freiberuflicher Business Central Developer & Architect at Freelancer
Recklinghausen, North Rhine-Westphalia, Germany
Summary
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SeniorChristoph Heer is a seasoned Business Central developer and architect with 15+ years of hands-on experience in Navision, Dynamics NAV and Business Central implementations, modernizations and cloud transitions. As a freelancer and former founder/technical lead, he focuses on pragmatic, maintainable AL development, robust third‑party integrations and automated testing to keep core processes safe during change. He translates architecture into production-ready code and acts as a technical sparring partner for complex migrations and upgrades. A Microsoft Certified Trainer since 2009, he brings up-to-date best practices into projects and training engagements. His open-source work on database connectors and Django REST GIS tooling shows a broader backend and data-savvy skill set beyond ERP systems. Based in Recklinghausen, Germany, he combines consultancy, hands-on delivery and architectural stewardship in productive Business Central projects.
15 years of coding experience
4 years of employment as a software developer
German, English
Github Skills (15)
databases10
django-rest10
sap-hana10
postgresql10
sql10
django-rest-framework10
geojson10
python10
database10
django10
pytest9
decimal9
decimals9
git9
bigdecimal9
Programming languages (8)
Github contributions (5)
SAP-archive/PyHDB
Dec 2014 - May 2018
SAP HANA Connector in pure Python
Role in this project:
Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:4 releases, 45 commits, 20 PRs in 3 years 5 months
Contributions summary:Christoph primarily contributed to the `pyhdb` project by implementing and improving database interaction features. Key contributions include adding support for `SELECT FOR UPDATE` functionality, and fixing issues related to decimal precision handling. The user also enhanced the codebase by incorporating Python 3 support, and addressing compatibility issues. These changes demonstrate a focus on extending the core database connectivity and ensuring wider compatibility.
pythonconnectorsap-hanasapsap-cloud-platform
openwisp/django-rest-framework-gis
Jun 2013 - Nov 2013
Geographic add-ons for Django REST Framework. Maintained by the OpenWISP Project.
Role in this project:Back-end Developer
Back-end DeveloperContributions:8 commits in 4 months
Contributions summary:Christoph primarily focused on setting up the project and modifying its core backend structure. Their work included initializing the project with a `setup.py` file and managing dependencies. They also refactored the package name, updated dependencies, and rewrote serializers and filters related to geographic data, demonstrating a deep understanding of the Django REST Framework and its geospatial extensions. The user improved the project by implementing a new filter for bounding box queries.
openwisppythonadd-onsdjango-rest-frameworkdjango
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