Lasse Heemann
Software Engineer at Neo4j
Lund, Sweden
Summary
👤
Senior🎓
Top SchoolLasse Heemann is a software engineer with 11 years of experience, currently contributing to Neo4j’s core as a back-end and database engineer focused on graph database topology and Cypher-related enhancements. He brings strong JVM and data-platform skills—Scala, Java and Python—paired with solid Linux experience from production-grade systems. At Neo4j he worked on the 5.0 autonomous cluster topology, parser and ALTER implementation, including extensive testing and build hygiene for a high-profile open-source database. Previously he developed backend systems at AFRY and gained hands-on CI/CD and build automation experience during a Bosch summer project. Trilingual in German, Swedish and English and based in Lund, he combines deep technical craftsmanship with clear cross-cultural communication. An engineer who prefers working close to the core plumbing, he enjoys solving subtle correctness and topology problems that keep distributed systems robust.
11 years of coding experience
2 years of employment as a software developer
Master of Science in Engineering, Computer Science and Engineering, Computer Software Engineering, Master of Science in Engineering, Computer Science and Engineering, Computer Software Engineering at The Faculty of Engineering at Lund University
German, Swedish, English
Stackoverflow
36reputation
87reached
2answers
0questions
Github Skills (19)
graph10
databases10
graph-database10
neo4j10
graphdb10
cypher10
graphing10
database10
nosql9
scala9
database-design9
parser8
parse8
parsing8
testing8
Programming languages (9)
Github contributions (5)
neo4j/neo4j
Sep 2022 - Nov 2022
Graphs for Everyone
Role in this project:
Back-end Developer / Database Engineer
Back-end Developer / Database EngineerContributions:12 commits, 4 comments, 1 issue in 2 months
Contributions summary:Lasse primarily contributed to the core database functionality of the Neo4j graph database, focusing on the 5.0 autonomous cluster database topology. Their work involved creating and refining the database topology, including ALTER implementation and parser improvements. They also extensively tested the new features, addressed build issues, and applied code formatting. The user collaborated with other developers on these changes, which involved modifying code related to the Cypher front-end and planning components.
neo4j-databasedirected-acyclic-graphnosqlgraphsdatabase
l-heemann/blinkenlights
Oct 2020 - Oct 2022
Contributions:1 review, 7 PRs, 8 pushes in 2 years
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