Armin Braun
Lucene Committer at The Apache Software Foundation
Schwyz, Schwyz, Switzerland
Summary
🤩
Rockstar🎓
Top SchoolArmin Braun is a backend-oriented performance engineer with 11 years of experience focused on high-throughput Java systems and search infrastructure. As a Lucene Committer and former Principal Software Engineer at Elastic, he has driven memory and allocation optimizations across Lucene and Elasticsearch and fixed subtle concurrency and stability bugs in projects like Apache Kafka. His open-source footprint spans deep runtime work—optimizing JRuby’s JIT and adding JMH benchmarks—to improving Logstash timestamp handling and hardening DevOps tooling such as Rultor. Based in Schwyz, Switzerland, he blends systems-level rigor with pragmatic refactors that reduce heap usage and improve throughput, and he often surfaces improvements that are invisible to users but materially improve production reliability.
11 years of coding experience
9 years of employment as a software developer
Physik, Physik at Technical University of Munich
German, English
Stackoverflow
3,675reputation
412kreached
65answers
0questions
docker-compose
top-5%
docker
top-5%
Github Skills (60)
algorithm10
lucene10
debugging10
algorithms10
debug10
docker10
deploying10
performance-monitor10
performance-analytics10
back-end-development10
testing10
amazon-elasticsearch10
memory-management10
unix-timestamp10
kafka10
Programming languages (11)
Github contributions (5)
elastic/logstash
Apr 2017 - Jun 2018
Logstash - transport and process your logs, events, or other data
Role in this project:
Back-end Developer
Back-end DeveloperContributions:970 commits, 599 PRs, 26 pushes in 1 year 1 month
Contributions summary:Armin contributed to the Logstash project by making improvements to the core functionality, primarily related to timestamp handling and data serialization. Their commits focused on enhancing the efficiency and consistency of timestamp operations, including fixes for specific edge cases. Additionally, the user addressed issues related to managing and upgrading internal queue implementations by refactoring the codebase and fixing concurrency issues.
eventsstreamingloggingetl-frameworklogstash
elastic/elasticsearch
Sep 2017 - Jan 2023
Free and Open Source, Distributed, RESTful Search Engine
Role in this project:Back-end Developer
Back-end DeveloperContributions:2815 reviews, 2936 commits, 6933 PRs in 5 years 5 months
Contributions summary:Armin primarily focused on enhancing the Elasticsearch core functionality by refactoring and optimizing existing code, specifically within the Java-based codebase of the `elasticsearch` repository. Their commits demonstrate a focus on improving performance through memory allocation reduction, as evidenced by changes to listeners, and code refactoring to improve code logic. The user worked across various modules, including server, plugins like X-Pack, and testing frameworks, exhibiting an understanding of the core logic and architecture of the search engine.
restfulsearch-engineopensearchelasticsearchjava
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