Andreas Kollegger
Software Engineer at neo4j
Cambridge, England, United Kingdom
Summary
🤩
RockstarAndreas Kollegger is a seasoned software engineer with 17 years’ experience based in Cambridge, UK, focused on building practical systems for resource-constrained contexts. He contributes to prominent open-source projects—working on OpenMRS core database schema migrations and Neo4j Browser full‑stack features—demonstrating deep expertise in data modeling, SQL, and pragmatic UI integrations. Comfortable across backend and frontend boundaries, he has implemented stored procedures, schema evolution, transactional error handling, and dynamic UI services like RSS-driven call-to-action content. His work reflects a bias for ensuring data integrity and evolving systems safely, with a particular interest in software that serves developing-world needs.
17 years of coding experience
Stackoverflow
1reputation
0reached
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Github Skills (22)
javascript10
coffeescript10
mysql10
java10
neo4j10
javas10
cypher10
sql10
database-design10
angularjs10
openmrs10
health9
srecord9
front-end-development9
mx-record9
Programming languages (14)
Github contributions (5)
neo4j/neo4j-browser
Nov 2013 - Nov 2019
Neo4j Browser is the general purpose user interface for working with Neo4j. Query, visualize, administrate and monitor the database.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:66 commits, 8 PRs, 1 push in 6 years
Contributions summary:Andreas implemented a new RSS feed service to display a dynamic "call-to-action" in the Neo4j Browser welcome screen, integrating with a third-party service (Delicious) to fetch and display feeds. They also made several updates to guide content (Cypher, Movies, and Northwind Graph) and system-level information screens, updating code samples, and making visual and textual adjustments. Further contributions include handling transactional endpoint errors and updating the codebase for Neo4j Browser Sync, with the related UI interface.
queryuser-interfacemonitorbrowservisualize
openmrs/openmrs-core
Oct 2008 - Dec 2008
OpenMRS API and web application code
Role in this project:Back-end Developer
Back-end DeveloperContributions:18 commits in 2 months
Contributions summary:Andreas primarily contributed to database schema updates and data model migrations within the OpenMRS core repository. Their work involved modifying SQL scripts to adapt the database schema to new OpenMRS datamodel versions, adding and removing columns and tables to support the application's evolution. The commits also included the implementation of stored procedures for data manipulation. The user's focus centered on ensuring the data model's integrity and compatibility with updated application versions.
apij2eehospitalemropenmrs
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