Davy Landman
Software Language Engineer And CEO at Swat.engineering
Amsterdam, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolDavy Landman is a software language engineer and CEO based in Amsterdam with 22 years of experience building DSLs, compilers, typecheckers, IDE extensions and automated software analysis tools. He combines deep research experience from a PhD and technology transfer at CWI with hands-on engineering across C#, Java, Delphi and low-level JNI/C work—for example improving zstd-jni to stream directly from Java NIO ByteBuffers. As founder of Swat.engineering he helps teams “make domain knowledge executable,” tackling complex renovation projects and greenfield language designs. Known for meta-programming, reverse engineering and pragmatic TDD, he bridges formal methods and production tooling, and is one of the core developers on the Rascal language ecosystem.
22 years of coding experience
7 years of employment as a software developer
Havo, Natuur en Techniek, Havo, Natuur en Techniek at Trevianum ScholengroepBachelor, ICT, Business Software, Bachelor, ICT, Business Software at Zuyd University of Applied SciencesMaster, Software Engineering, Master, Software Engineering at Universiteit van Amsterdam
English, Dutch
Stackoverflow
15,224reputation
3.3mreached
230answers
15questions
parsing
top-1%
entity-framework
top-5%
winapi
top-5%
debugging
top-1%
language-agnostic
top-5%
delphi
top-5%
Github Skills (24)
debugging10
compression-algorithm10
c1110
java10
bytebuffer10
c1710
javas10
jna10
native-library10
parsing10
winapi9
architecture9
delphi9
language-agnostic9
entity-framework9
Programming languages (20)
Github contributions (5)
luben/zstd-jni
Jan 2017 - Jan 2017
JNI binding for Zstd
Role in this project:
Back-end Developer
Back-end DeveloperContributions:11 commits, 2 PRs, 10 comments in 12 days
Contributions summary:Davy primarily focused on enhancing the `zstd-jni` library, a JNI binding for the Zstd compression library, to support direct buffer streaming. Their work included implementing a `ZstdDirectBufferDecompressingStream` and `ZstdDirectBufferCompressingStream`, along with corresponding JNI code in C. These changes enabled efficient compression and decompression directly using Java NIO `ByteBuffer`s, improving performance by leveraging memory mapping and reducing unnecessary data copies. Tests were also added to validate the functionality of the streams, and improve corner cases like reading/writing one byte at a time.
lossless-compression-algorithmcompressionandroidzstdjava
cwi-swat/rascal-OFG
Feb 2015 - Feb 2018
A rascal library to translate OFG's to Tonella and Potrich's Object Flow Graph language.
Contributions:3 PRs, 5 pushes, 3 comments in 3 years
rascaldataminingmemgraphquery-languagetranslate
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