# Timofey Tkachenko

Timofey Tkachenko is a remote worker on Himalayas, AI Engineer at 2021.AI, based in Ukraine.

Source: https://himalayas.app/@timofeytkachenko

```text
AI Engineer at 2021.AI developing YOLO object detection models and optimizing computer vision inference pipelines.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Ukraine |
| Authorized to work in | Ukraine |
| Salary expectations | 70k+ USD |
| Job categories | Data Scientist, Machine Learning Engineer |
| Skills | Machine Learning, Computer Vision, Predictive Analytics, A B Testing, Statistical Analysis, Causal Inference, Uplift Modeling, Clustering, Model Explainability, Data Wrangling, Data Visualization, Python, SQL, Flask, Flask SocketIO |
| LinkedIn | https://linkedin.com/in/timofey-tkachenko |
| GitHub | https://github.com/timofeytkachenko |

## About

```text
At 2021.AI, I develop and evaluate YOLO-based object detection models, preparing datasets for training and validation. I also optimize computer vision inference pipelines and analyze false positives and false negatives.

As a Data Scientist at NDACompanyExperience, I designed an LTV prediction model that reduced marketing costs by up to 15% and automated LTV prediction and anti-fraud processes. At AltexSoft, I led a full-stack insurance project using microservices and a Flask-based backend, increasing policy purchase conversion rates by up to 25%.
```

## Experience

### AI Engineer (current)

2021.AI. May 2025 - Present

```text
Developing and evaluating YOLO-based object detection models, optimizing computer vision inference pipelines, and integrating ML components into the application pipeline.
```

Skills: YOLO, Computer-Vision, Machine-Learning, Model-Evaluation, Deployment

### Data Scientist

NDACompanyExperience. Aug 2020 - May 2025

```text
Shortened A/B test durations by over 20%, designed an LTV prediction model reducing marketing costs by up to 15%, and automated anti-fraud detection and user behavior analysis processes.
```

Skills: A-B-Testing, LTV-Prediction, Machine-Learning, Computer-Vision, Fraud-Detection, User-Behavior-Analysis

### Data Scientist

AltexSoft. Dec 2019 - Aug 2020

```text
Increased insurance policy purchase conversion rates by up to 25% and led a full-stack insurance project using microservices and a Flask-based backend.
```

Skills: Flask, Microservices, Prediction-Models, Statistical-Analysis, A-B-Testing

### Machine Learning Engineer

HeyML. Jan 2019 - Dec 2019

```text
Led development of a real-time game assistant microservice, optimizing ML frameworks and code to address FPS and hardware limitations, and built microservices using Flask-SocketIO with a PyQt-based GUI.
```

Skills: Flask-SocketIO, PyQt, Microservices, Machine-Learning, Optimization

### Machine Learning Engineer

Jazzros. Jun 2018 - Dec 2018

```text
Directed an advanced image segmentation project leveraging sonar technology, implementing and enhancing algorithms from scientific research to achieve high-precision results.
```

Skills: Image-Segmentation, Sonar-Technology, Algorithm-Implementation, Research

## Education

### National Aerospace University, Kharkiv

Bachelor of Science, Aircraft Control Systems. 2015 - 2018

```text
Bachelor of Science in Aircraft Control Systems from National Aerospace University, Kharkiv, from 2015 to 2018.
```

### Kremenchuk Flight College

Associate's Degree, Operation of Aviation Electrified Complexes. 2011 - 2015

```text
Associate's Degree in Operation of Aviation Electrified Complexes from Kremenchuk Flight College, Kremenchuk, from 2011 to 2015.
```

## Tech stack

- PyQt
- Pandas
- OpenCV
- Python
- TensorFlow
- PyTorch
- scikit-learn
- Keras
- Flask
- Docker
- SQL
- XGBoost
- LightGBM
- CatBoost
- Polars
- AWS

To contact Timofey, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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