Florian Bernd
Senior Software Engineer at zyantific
Greater Koblenz Area Germany
Summary
🤩
Rockstar🎓
Top SchoolFlorian Bernd is a performance-focused Senior Software Engineer with 11 years of experience building and maintaining high-performance backends and developer tooling from the Greater Koblenz Area, Germany. He currently maintains the official Elasticsearch .NET client at Elastic, where he redesigned the code generator to add support for 200+ endpoints and broadened feature coverage across aggregations and APIs. As co-founder of zyantific, he created and evolved Zydis, a fast x86/x86-64 disassembler, contributing deep low-level expertise in instruction decoding and code generation. His background includes designing NoSQL storage and high-throughput JSON ingestion for a vectorized SQL engine and leading a .NET migration and backend architecture at dirico. Florian blends systems-level programming chops with practical API and tooling work, evidenced by contributions to both widely-used open source projects and enterprise-grade client libraries. He is notable for turning nuanced, performance-critical edge cases into robust, production-ready solutions.
11 years of coding experience
5 years of employment as a software developer
Bachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at Universität Koblenz-LandauUniversity entrance certificate, University entrance certificate at Eichendorff-Gymnasium Koblenz
German, English
Github Skills (32)
assembly10
software-design10
dis10
apidoc10
amazon-elasticsearch10
net10
dotnet10
c1110
decode10
decoding10
c1710
asp-net10
elasticsearchquery10
code-analysis10
api10
Programming languages (18)
Github contributions (5)
zyantific/zydis
Oct 2014 - Dec 2022
Fast and lightweight x86/x86-64 disassembler and code generation library
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 releases, 185 reviews, 617 commits in 8 years 2 months
Contributions summary:Florian's commits primarily involve refactoring core functionalities related to instruction decoding within a disassembler and code generation library, specifically focusing on the `Decoder.c` and `Formatter.c` files. The changes demonstrate a focus on improving efficiency and addressing edge cases, suggesting a strong understanding of low-level systems programming. The user implemented improvements to memory operand decoding and introduced a tokenizing feature, contributing to the disassembler's functionality.
amdcode-generationcodegenintelx86
elastic/elasticsearch-net
Jun 2023 - Apr 2025
This strongly-typed, client library enables working with Elasticsearch. It is the official client maintained and supported by Elastic.
Role in this project:Back-end Developer
Back-end DeveloperContributions:65 releases, 95 reviews, 448 PRs in 1 year 9 months
Contributions summary:Florian primarily focused on enhancing the functionality of the client library, specifically addressing issues related to deserialization and API implementation. They made improvements to custom floating-point JSON converters and enhanced the definition of queries. Furthermore, the user refactored code related to the field handling and also included several updates to dependency versioning. The user also updated the client to align with recent Elasticsearch specifications.
dot-net-clientelasticsearch-netdot-netclient-libraryelastic
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