Sergei Bratchikov
NLP & RL Engineer at VIkhrModels AI Lab
Paris, Ile-de-France
Summary
👤
Senior🎓
Top SchoolSergei Bratchikov is an NLP and RL engineer with 8 years of experience building and aligning large language models, moderation systems, and high-throughput inference pipelines across industry and open-source labs. He designs SOTA detectors for harmful and hallucinated content, automates jailbreak testing to harden model safety, and applies online/offline RL to improve moderation and alignment. His work spans production optimization (vLLM, ONNX, Triton, TensorRT, FP8 quantization) and research-grade tooling—he leads open-source LLM projects and training frameworks with publications including EMNLP 2024. Based in France and trained in applied mathematics at NUST MISIS, Sergei blends rigorous academic grounding with hands-on system engineering and a notable knack for turning adversarial model attacks into stronger, community-facing safety benchmarks.
9 years of coding experience
4 years of employment as a software developer
National University of Science and Technology "MISIS" (Moscow Institute of Steel and Alloys)
Github Skills (46)
intel10
onnxruntime10
sentence-transformers9
transformers9
chatgpt-api9
diffusers9
pytorch9
hardware9
onnx9
inference9
tflite9
optimization9
aiogram9
compression9
quantization9
Programming languages (2)
Github contributions (5)
hivaze/PrivateGPTBot
Apr 2023 - Mar 2025
Private chat bot on aiogram for limited access to ChatGPT with custom personalities.
Contributions:14 PRs, 92 pushes, 16 branches in 1 year 11 months
aiogramchatbotchatgptbotchatgpt-api
hivaze/Advanced_NLP_Course
Jun 2022 - Jan 2023
Contributions:3 commits, 1 push, 1 branch in 7 months
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