Udo Mai
Senior Language Engineer at Markup AI
Laguna Niguel, California, United States
Summary
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Rockstar🎓
Top SchoolUdo Mai is a Senior Language Engineer with five years of hands-on experience building production-ready LLM systems and multilingual NLP pipelines, currently driving content governance and model integration at Markup AI from Laguna Niguel. He combines a PhD in Linguistics with practical backend development (Groovy, Python, POS taggers, tokenizers) to deliver robust grammar, style, and accessibility tooling for English, French, and German. Previously Head of Linguistics at LanguageTool, he led multi-language teams and contributed substantive rule and quality improvements to the widely used LanguageTool open-source project. Fluent in six languages and experienced in customer-driven feature design, Udo bridges linguistics, ML/LLM APIs (OpenAI, Anthropic, Claude) and open-source stacks (Hugging Face) to move innovations from prototype to production.
5 years of coding experience
9 years of employment as a software developer
Doctor of Philosophy - PhD, Romance Languages, Literatures, and Linguistics, summa cum laude, Doctor of Philosophy - PhD, Romance Languages, Literatures, and Linguistics, summa cum laude at Université Paris Nanterre, Universität PotsdamBachelor's degree, Romance Languages, Literatures, and Linguistics, Bachelor's degree, Romance Languages, Literatures, and Linguistics at Università degli Studi di TorinoMaster's degree, Romance Languages, Literatures, and Linguistics, Master's degree, Romance Languages, Literatures, and Linguistics at University of Potsdam
English, French, Italian, Spanish, Portuguese, Greek
Github Skills (14)
grammar10
stylecop10
javas10
proofs10
checkstyle10
grammars10
nlp10
proof10
natural-language-processing10
java10
rman9
g9
french9
du8
Programming languages (4)
Github contributions (5)
languagetool-org/languagetool
Aug 2020 - Jun 2022
Style and Grammar Checker for 25+ Languages
Role in this project:
Backend Developer & Localization Specialist
Backend Developer & Localization SpecialistContributions:512 reviews, 434 commits, 572 PRs in 1 year 10 months
Contributions summary:Udo primarily contributed to the LanguageTool project by modifying and refining the language-specific rules and priorities within the code, enhancing its style and grammar checking capabilities. They added new rules, prioritized existing ones, and addressed specific issues related to multiple languages, including Dutch, German, French, and English. Furthermore, the user worked on merging rule activations and making fixes to existing grammatical and stylistic rules across various languages.
style-checkergrammar-checkercheckergrammarlanguagetool
udomai/languagetool
Aug 2020 - Feb 2025
Style and Grammar Checker for 25+ Languages
Contributions:29 pushes, 216 branches in 4 years 7 months
grammar-checkercheckergrammarlanguagetoolabstract-syntax-tree
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