Brian Kjersten
NLP Engineer at Optum
Greater Minneapolis-St. Paul Area United States
Summary
👤
Senior🎓
Top SchoolBrian Kjersten is an NLP engineer with eight years of experience applying computational linguistics to real-world products, from research labs at Johns Hopkins and the Army Research Lab to production teams at Basis Technology and Optum. He builds and ships cross-lingual name-matching, entity linking, and document categorization systems, and has introduced practical ML innovations such as embedding-enhanced name matching and a perceptron-based Hebrew lemmatizer. Comfortable across Java, Python, C++, and TensorFlow, he moves ideas from literature review and prototyping to optimized, production-ready implementations. His work spans the full NLP pipeline—language ID, morphological analysis, NER, summarization, and information extraction—often as the team’s NLP expert integrating models into larger forensic and identity-resolution products. Trained at Johns Hopkins’ Center for Language and Speech Processing, he pairs rigorous research experience with a habit of thorough error analysis and ablation testing to balance speed and accuracy. Based in the Twin Cities, he’s notable for turning academic techniques into deployable systems that solve messy, multilingual name and identity problems.
8 years of coding experience
13 years of employment as a software developer
Johns Hopkins UniversityGreenbush-Middle River High SchoolBachelor of Science, Electrical Engineering, Bachelor of Science, Electrical Engineering at University of St. Thomas
Github Skills (20)
autopsy10
fuzzy-matching10
enforcement10
text-analytics10
recover10
military10
java10
camera10
text-mining10
entity-extraction9
rosette9
client-library9
nlp8
api8
natural-language-processing8
Programming languages (2)
Github contributions (5)
bhkjersten/autopsy
May 2019 - Sep 2019
Autopsy® is a digital forensics platform and graphical interface to The Sleuth Kit® and other digital forensics tools. It can be used by law enforcement, military, and corporate examiners to investigate what happened on a computer. You can even use it to recover photos from your camera's memory card.
Contributions:53 pushes, 10 branches in 3 months
memoryenforcementcameraforensicslaw
sleuthkit/autopsy
Jul 2019 - Sep 2019
Autopsy® is a digital forensics platform and graphical interface to The Sleuth Kit® and other digital forensics tools. It can be used by law enforcement, military, and corporate examiners to investigate what happened on a computer. You can even use it to recover photos from your camera's memory card.
Contributions:79 commits, 8 PRs, 5 comments in 1 month
memoryenforcementcameraforensicslaw
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