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$35 USD / hour
$35 USD / hour
It's currently 12:35 PM here
Joined January 11, 2021
3 Recommendations

Viktor B.


4.9 (42 reviews)
$35 USD / hour
$35 USD / hour
Jobs Completed
On Budget
On Time
Repeat Hire Rate

Experienced NLP expert

Experienced NLP expert # Natual language processing - 7+ years experience in information processing such as syntax analysis, machine translation, automatic speech recognition & synthesis, optical charactor recognition and 5+ years ML/DNN experience in such as ASR, OCR, NLU, NER, Q&A, chatbot, recommendation systems. - Familiar with various NLP libraries such as Glov, Word2Vec, spaCy, gensim, Seq2seq, statsmodels, NLTK, Dialogflow, RASA, IBM Watson, BERT, GPT. Ex: Generate plausible content for large variety of subjects. Can serve as base for marketing blogs. Used customer's datasets and GPT-2(355M and 774M models) and fintuned model, and deploy as restAPI on cloud. # Image processing - Expert level knowledge in OpenCV, Dlib, Cximage - Custom object detection, recognition, tracking, segmentation Ex: Real-time people & vehicle counter with 95% accuracy using EfficientDet & DeepSort deployed on AWS which is used at 300 locations… - Facial detection, recognition Ex: facial recognition and attendance system for small company: deployed on AWS and used for automatic door management. - Age/Gendor/Emotion detection, classification - ALPR using openAlpr and my own offline dnn engine Ex: Russian, chinese, hindi, USA LPR for public parks. - Image Classification, and Segmentation using CNN, R-CNN, mask R-CNN with AlexNet, VGG, inception, imagenet and resnet # Speech processing - speech/speaker recognition for various language & audio types. Ex: speach recognition system by using kaldi, deepspeech, wav2letter with under5% WER for american phoenic system. - text synthesis and voice cloning with dnn. Ex: speech synthesis system by using HTS, Tacotron, Voice cloning for hindi call-center. # Data Scientist - Solid understanding and expertise in analyzing, preprocessing, clustering, regression, visualization and maintaining large datasets. - Web Scrapping and Data Extraction, involving all sorts of data such as structured and unstructured data from many categories of websites such as social media sites like Facebook, Instagram, e-commerce websites like amazon, homedepot, real estate websites, etc. # Master level dnn experience with various frameworks such as tensorflow/keras, pytorch, caffe, arrayfire, flashlight, yolo, mxnet. # Master degree on mathmatics. - Well versed in Applied Mathematical concepts of probability, computational statistics, computational linear algebra, convex optimization, calculus, computational complexity and in their application to algorithmic trading, backtesting, time series analysis. # Plenty of experience in deploying engines in various forms such as restful API, rpc, standarlone app, apk, docker on linux, windows, mac, cloud(AWS, GCP, Azure). # Master level knowldege on several languages such as c/c++, python, java, Qt, PyQt, php, js. # Good at data structure and algorithm, since having programming contestant career. # Flexible working time on various time-zone and 40Hr/week availibility.
Freelancer Python Developers Russian Federation

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Portfolio Items

Speech recognition and synthesis for phoneic system.
Audio processing
Multi object detection and tracking with 95+% accuracy
Object detection


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Showing 1 - 5 out of 42 reviews
Filter reviews by: 5.0
$1,600.00 USD
Viktor is a skilled developer who knows what he is doing.
Python Software Architecture Machine Learning (ML) Data Science Data Analytics
Flag of Yaroslav G. @slavikuf3
1 year ago
$500.00 AUD
Freelancer was unable to solve what should have been a simple problem (for an expert in this field), and also took an extremely long time to submit anything. Very pushy to have milestone released before I or even he has properly tested his own code. Was hesitant to change/fix things at times.
C++ Programming
Flag of Alex M. @alexau3
2 years ago
€145.00 EUR
I needed some things in C/C++ with a deep knowledge requirement. However, he had that knowledge and managed to do a great job! Will definitely work with him again!
C Programming Algorithm C# Programming Software Architecture C++ Programming
Flag of Chakan C. @qerz
2 years ago
€120.00 EUR
Viktor helped me and did great job, i would work with him again.
Algorithm Software Architecture Mathematics Artificial Intelligence Engineering Mathematics
Flag of Node N. @kricha02
2 years ago
€600.00 EUR
Great work on a challenging project!
Python Machine Learning (ML) Data Mining Data Science
Flag of Philipp B. @phil543
2 years ago



Sankt-Peterburgskij Gosudarstvennyj Institut Tocnoj Mehaniki i Optiki (Tehniceskij Universitet), Russian Federation 2008 - 2012
(4 years)

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Top Skills

Python 31 C Programming 17 Java 8 Data Science 2 Artificial Intelligence 2

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