Jan Niestadt
Senior Developer at Instituut voor de Nederlandse Taal
Leiden, South Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolJan Niestadt is a senior developer with 13+ years building robust data processing and full-text search systems, currently leading development at the Instituut voor de Nederlandse Taal in Leiden. He is the principal author of BlackLab, an open-source linguistic search engine built on Apache Lucene, and combines deep systems-level knowledge with practical API and user-focused design. Comfortable across Java, C++, PHP and Python, he has delivered everything from low-level services and drivers to web applications and indexing workflows. His specialty is turning messy, heterogeneous text sources into clean, enriched, searchable data at scale. He values performance and maintainability equally, aiming to make powerful tools both fast and a pleasure to use. Outside production code, his background shows a knack for tooling and automation that streamlines long-term digital humanities work.
13 years of coding experience
20 years of employment as a software developer
Rembrandt SG, LeidenMaster of Science, Computer Science, Master of Science, Computer Science at Universiteit Leiden
English, Dutch
Stackoverflow
153reputation
129kreached
2answers
1question
Github Skills (76)
corpus10
lucene10
search-interface10
entity-framework9
frontend9
haxe9
lexicography7
gist7
editor7
wordpress7
electron7
typescript7
gitlab7
xpath6
api6
Programming languages (10)
Github contributions (5)
INL/taalradar
Sep 2018 - Apr 2022
Crowdsourcing application enabling speakers of Dutch to contribute to the knowledge about the Dutch language.
Contributions:11 PRs, 13 pushes in 3 years 7 months
reactknowledgedutch-languagespeakerscrowdsourcing
instituutnederlandsetaal/solr-xslt-plugin
Mar 2020 - Mar 2025
Solr plugin for applying XSLT to a field from the response that contains XML
Contributions:2 PRs, 30 pushes, 2 branches in 5 years
solrxmlfieldjavasolr-plugin
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