Nikita Severin
Summary
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SeniorNikita Severin is a Chief Data Scientist and HSE PhD candidate with 8 years' experience building production ML and GenAI solutions, currently driving a fintech-focused GenAI initiative at OQU AI. He combines deep research in Graph ML, recommender systems and LLM agents—with publications at NeurIPS, RecSys, ICDM and ECAI—with hands-on engineering that has shipped moderation, summarization and chatbot services in production. His background spans academia and industry, from research roles at ISPRAS and JetBrains to product work at TradingView and consultancy for fashion ML pipelines. Nikita also teaches Graph ML and LLM courses, evidencing an ability to translate cutting-edge research into practical curricula and team knowledge. Notably, his work includes efficient inductive GNNs and benchmarking LLMs, demonstrating a focus on scalable, real-world performance rather than only benchmark gains. Based in Serbia, he blends rigorous theoretical training with pragmatic deployment experience across NLP, GNNs and recommender systems.
9 years of coding experience
Github Skills (21)
text-summarization9
matrix-factorization7
collaborative-filtering7
recommender-system6
pyspark6
algorithms6
distributed-computing5
evaluation5
git5
recommendation-system4
transformers4
pytorch4
machine-learning4
deep-learning4
natural-language-processing3
Programming languages (5)
Github contributions (5)
torchme/sasrec-bert4rec-recsys23
Nov 2024 - May 2025
Code for ACM RecSys 2023 paper "Turning Dross Into Gold Loss: Is BERT4Rec really better than SASRec?"
Contributions:2 PRs, 161 pushes, 3 branches in 5 months
Nikis14/SPAGuestBook
Aug 2018 - Apr 2021
Contributions:2 pushes, 1 branch in 2 years 8 months
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