Aleksei Alekseev

Senior DS Researcher
Areas of interests: Image processing, LLM
Work experience
Senior DS Researcher
Avito Moscow
Since August 2025

End-to-end development of multimodal embedding models

Team Lead Data Scientist
NTechLab Moscow
From May 2020 to August 2025

Leading the Face Recognition team
Full SOTA face recognition pipeline (from classical CV to deep learning):
Face detection, alignment, generation, quality, embedding extraction, data scrapping and processing, training on large-scale datasets.
Achievements and challenges

  • 1st place NIST FRVT April, 2021 and September, 2023 - 2024

  • Gold medal in Happywhale - Whale and Dolphin Identification challenge

LLM stack

Development of AI agents utilizing Chain of Thought (CoT), structured outputs, functional calling, Retrieval-Augmented Generation (RAG), etc.

Data Scientist
Singularis Lab, LLC Volgograd
From July 2013 to May 2020

Work experience
1) Classical computer vision: edge detection, viola-jones algorithm, keypoints detestion (SURF, etc), segmentation (GrabCut), tracking, etc.
1) Image classification. Painting classification (style, genre), Type of room, etc.
2) Liveness (anti-spoofing), commercial product. Also took 2nd place in a face anti-spoofing challenge
3) Several projects with Microsoft HoloLens, also gesture recognition with MS Kinect
Main publications
1) Automatic coloring of grayscale images based on intelligent scene analysis (https://link.springer.com/article/10.1134/S1054661815010022)
2) Context-Sensitive Image Analysis for Coloring Nature Images
(https://link.springer.com/chapter/10.1007/978-3-319-33816-3_14)

Education
Computer Science
Volgograd State Technical University Volgograd
From September 2009 to June 2015

Master's degree

Computer Science
Volgograd State Technical University Volgograd
From September 2015 to July 2019

PhD studies

Moscow
+7 988 011 62 19
Skills
Python, PyTorch, OpenCV
HuggingFace transformers, Tensorflow, Nvidia DALI
C++, C#, CUDA, *GBDT, Web scraping
Unity, Microsoft Hololens, Intel RealSense
Languages
English

Upper-Intermediate

Interests
Surfing
Soccer
Karting
Links
Habr

https://habr.com/users/Kwent/

Kaggle

https://www.kaggle.com/kwentar

LinkedIn

https://www.linkedin.com/in/aleksey-alekseev/