Leon Derczynski
Research Scientist at NVIDIA · ITU Copenhagen
Seattle, Washington, United States
Summary
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Rockstar🎓
Top SchoolLeon Derczynski is a research scientist specializing in LLM security and safety with 16 years of experience across machine learning and natural language processing. He leads the Strømberg NLP research unit at the IT University of Copenhagen and has directed and secured millions of euros in research funding while publishing extensively in NLP and ML. A PhD graduate from the University of Sheffield’s large NLP group and formerly top of his year in computing, he brings strong international experience across the USA, UK, Denmark, China, and Russia. Based in Seattle, he blends rigorous academic credentials with practical leadership in applied research, and his profile signals active engagement as a professional scientist contributing to open research and tooling in NLP.
16 years of coding experience
Exeter SchoolMaster of Computing - MComp, Computer Science, Top of year (dux litterarum/valedictorian), Master of Computing - MComp, Computer Science, Top of year (dux litterarum/valedictorian) at The University of Sheffield
Stackoverflow
543reputation
29kreached
3answers
7questions
Github Skills (189)
transformers10
pii10
tuple10
language-model10
python10
arabic-nlp10
terminology10
lda10
flax10
datasets10
deep-learning10
computational-linguistics10
speech10
phonetics10
wordnet10
Programming languages (14)
Github contributions (5)
leondz/hatespeechdata
Jun 2019 - Aug 2022
Contributions:42 reviews, 72 commits, 74 PRs in 3 years 2 months
word-embeddingslanguage-processingcorpus-linguisticssemanticsdata-language
NVIDIA/garak
May 2023 - Apr 2025
the LLM vulnerability scanner
Contributions:13 releases, 477 reviews, 506 PRs in 1 year 10 months
aillm-evaluationllm-securitysecurity-scannersvulnerability-assessment
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