Michael Marshall
Principal Software Engineer at Elastic
Nashville-Davidson, Tennessee, United States
Summary
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Rockstar🎓
Top SchoolMichael Marshall is a Principal Software Engineer with 7 years of experience specializing in vector search, distributed systems, and cloud-native infrastructure, currently driving Vector Search work at Elastic. An Apache Pulsar PMC member and committer, he has made notable contributions across Pulsar, BookKeeper and Kafka-on-Pulsar—fixing memory leaks, improving batching and test/release automation, and tightening documentation and Helm chart reliability. He combines deep Java and Kubernetes expertise with practical networking and security know-how, shipping production-grade fixes and performance improvements. His career spans staff and senior engineering roles at DataStax/IBM and Oracle, and his background in honors mathematics and philosophy from Notre Dame informs a rigorous, analytical approach to problem solving. Notably, beyond core code, he has improved Pulsar’s developer experience by overhauling docs, versioned Javadocs, and release tooling—little changes that significantly reduce operational friction.
7 years of coding experience
9 years of employment as a software developer
BS, Honors Mathematics and Philosophy, BS, Honors Mathematics and Philosophy at University of Notre Dame
English, French
Stackoverflow
76reputation
863reached
3answers
0questions
Github Skills (42)
debugging10
kubernetes10
debug10
back-end-development10
thread-safety10
testing10
distributed-log10
distributed-systems10
pulsar10
cicd10
java10
apache-bookkeeper10
javas10
manage10
helm10
Programming languages (17)
Github contributions (5)
apache/pulsar
Jan 2021 - Jan 2023
Apache Pulsar - distributed pub-sub messaging system
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:1 release, 1341 reviews, 295 commits in 2 years
Contributions summary:Michael primarily focused on improving the test coverage and fixing bugs within the Apache Pulsar codebase. They addressed memory leaks related to transactions by modifying and releasing resources in the code. The user also made performance improvements by refactoring the batching of messages. Furthermore, the user contributed to resolving issues in the consumer implementation and added a new test case.
event-streamingpulsarmessaging-systemstreamingapache
apache/pulsar-helm-chart
Jun 2022 - Nov 2022
Official Apache Pulsar Helm Chart
Role in this project:DevOps Engineer
DevOps EngineerContributions:1 release, 98 reviews, 34 commits in 4 months
Contributions summary:Michael primarily focused on improving the testing and release processes for the Apache Pulsar Helm chart. They introduced Cert Manager integration for testing, upgraded dependencies (Cert Manager), and added a consumer to existing helm tests. Furthermore, the user implemented a new release process, adapting it to Apache Pulsar from Apache Airflow and adding scripts for signing release artifacts. These changes improve the testing, reliability and release management of the chart.
event-streamingpulsarcharthelmhelm-chart
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