Position: Data Scientist
Category: Data Science
English level: fluent
Years of experience: 5


I have worked both in industry and research instutute in R/D as a Data Scientist. My expertise are in the field of Speech Processing (ASR & TTS), as well as NLP (Natural Language Processing). I have Masters in Computer Science (NLP track) from KAIST, Korea. 
In the last 2 years I have:
- Created a multi-lingual ASR system (Kazakh, Russian and English).
- Worked on Kazakh text-to-speech (TTS) synthesis project. 
- Developed TTS system (Tacotron, Transformer and Fastspeech) using ESPnet which achieved over 4.0 mean opinion score.
- Worked on Kazakh automatic speech recognition (ASR) project.
- Crawled 2M sentences and pre-processed data using NLTK & Spacy libraries.
- Developed both traditional (HMM-DNN) and end-to-end ASR architectures (RNN, CTC, Transformer) using Kaldi and ESPnet toolkits, respectively.  Obtained 8.7% word error rate on the test set.
- I have published multiple papers in conferences such as EACL & InterSpeech, LREC. 
My most recent projects include challenges in Code-Switching in ASR, voice cloning, normalizing numerals for robust TTS in Russian that works in real-time, conversion of TF and PyTorch models to ONNX compatible ones, and improving hifi-wide GAN vocoders.