Mischa Holz
Co-Founder & Senior Software Consultant at Opencreek Technology
Offenbach am Main, Hesse, Germany
Summary
👤
Senior🎓
Top SchoolMischa Holz is a Co-Founder and Senior Software Consultant with 11 years of experience building scalable, secure backend systems and cloud-native infrastructures from startup to production scale. He has architected high-availability, containerized platforms and automated continuous delivery pipelines that enabled zero-downtime deployments and significant business improvements—most notably boosting sales and support efficiency at a market-leading co-living startup. A pragmatic, agile leader, he’s experienced in growing and mentoring teams while integrating complex third-party ecosystems without compromising architecture integrity. His open-source work includes backend and QA contributions to the neo4j/graphql project, where he fixed edge-update and date-time issues and added integration tests to harden graph edge handling. Based in Offenbach am Main, he blends hands-on Node.js/TypeScript engineering with operational rigor across Kubernetes, GCP, and observability tooling. He’s known for turning messy requirements into reliable, well-tested services that scale.
11 years of coding experience
7 years of employment as a software developer
Technischen Universität Darmstadt
Stackoverflow
3,537reputation
245kreached
69answers
7questions
garbage-collection
top-5%
java
top-5%
spring-boot
top-5%
jvm
top-5%
Github Skills (23)
testing10
typescript10
wpgraphql10
neo4j10
wordpress-graphql10
typescript-types10
graphql10
typescripts10
integration-testing10
jvm9
java9
spring-boot9
cypher9
garbage-collection9
graph8
Programming languages (12)
Github contributions (5)
neo4j/graphql
Oct 2021 - Nov 2021
A GraphQL to Cypher query execution layer for Neo4j and JavaScript GraphQL implementations.
Role in this project:
Backend Developer & QA Engineer
Backend Developer & QA EngineerContributions:1 review, 7 commits, 3 PRs in 28 days
Contributions summary:Mischa focused on enhancing the Neo4j GraphQL project by addressing issues related to edge updates in one-to-one relationships and date handling within edges. They implemented bug fixes, added integration tests to validate edge property updates, and moved test cases to improve organization. Furthermore, the user contributed by adding and adjusting tests to specifically cover edge update scenarios and integration issues with date-time data types.
queryimplementationsjavascriptgraphscypher-query
opencreek/graphql
Oct 2021 - Oct 2023
A GraphQL to Cypher query execution layer for Neo4j and JavaScript GraphQL implementations.
Contributions:50 pushes, 16 branches, 2 tags in 2 years
queryimplementationsjavascriptcypher-querygraph
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