Lorenzo Dematté
Principal Software Engineer at Elastic
Trentino – Alto Adige/Südtirol, Italy
Summary
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Rockstar🎓
Top SchoolLorenzo Dematté is a Principal Software Engineer with 13+ years building high-frequency, low-latency systems and real-time visualization pipelines, currently leading core engineering at Elastic. He brings deep expertise in graphics, compilers, and low-level performance tuning—often squeezing extra throughput from systems where milliseconds matter. His background spans research-driven roles (PhD-level work and Microsoft Research collaborations) to production at Amazon and Ferrari, blending academic rigor with practical delivery. An active contributor to notable open-source projects like Elasticsearch, he has improved testability and stability in distributed search components. Based in Trentino-Alto Adige, he thrives on complex domains, simple elegant designs, and rapidly mastering new technologies.
13 years of coding experience
18 years of employment as a software developer
Doctor of Philosophy (Ph.D.) Computer Science, Doctor of Philosophy (Ph.D.) Computer Science at Università di Trento
English, Italian
Stackoverflow
7,719reputation
818kreached
125answers
19questions
dom-events
top-5%
jquery
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javascript
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nfc
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html
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Github Skills (24)
back-end-development10
testing10
amazon-elasticsearch10
java10
javas10
elasticsearchquery10
aws-elasticsearch10
elasticsearch10
test-automation10
elasticsearch-api10
javascript9
jquery9
nfc9
dom-events9
html9
Programming languages (8)
Github contributions (5)
elastic/elasticsearch
Jul 2023 - Apr 2025
Free and Open Source, Distributed, RESTful Search Engine
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:1333 reviews, 655 PRs, 203 pushes in 1 year 8 months
Contributions summary:Lorenzo primarily focused on improving testability and stability within the Elasticsearch codebase. They modified and re-enabled tests related to repository access and data storage, with a focus on ensuring the system behaves correctly across different versions. In addition, they added functionality to mock sockets in ReadinessService, enhancing the ability to test open/close socket operations. They also implemented improvements to core code related to chunking request responses.
restfulsearch-engineopensearchelasticsearchjava
ldematte/SM.Expressions
Mar 2020 - Aug 2022
SM expression parser, evaluator, compiler
Contributions:7 PRs, 10 pushes, 1 branch in 2 years 4 months
compilerexpression-languageparseryacccompilers
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