Looking for a job

Aleksandr Tomaev

@aleksandrtomaev

Message

I’m an ML Engineer and Data Scientist building accurate models and deployable services.

Belarus

Message

What I'm looking for

I’m looking for job opportunities as a Machine Learning Engineer / Data Scientist.

Beyond classical Machine Learning (ML), I have experience with Deep Learning (DL) / neural networks. This includes creating image embeddings and object detection / recognition — i.e., Computer Vision (CV). I have also worked on text classification and NLP, and have applied Transformer architectures.

Additionally, I regularly presented my research findings to leadership and at conferences, effectively translating complex technical concepts into clear, actionable insights for diverse audiences.

I solve algorithms in Python, write complex SQL queries, and am proficient with Git, Bash, Airflow, and Docker. I am deeply interested in Large Language Models (LLMs) and continue to deepen my knowledge in this area.

In my free time, I am learning to play the piano and play tennis.

Experience

Work history, roles, and key accomplishments

Current

ML Engineer (DS Projects)

Current

DS Projects

Nov 2024 - Present (1 year 7 months)

Project 1. Task: predicting the probability of loan default
Results:
 Conducted a detailed and insightful exploratory data analysis (EDA)
 Used Optuna to tune optimal hyperparameters for XGBoost, CatBoost, and
LightGBM
 Performed ensemble model weight optimization
 Achieved excellent performance

XGBoost CatBoost LightGBM fastAPI PyTorch TensorFlow SQL Feature Engineering

Current

Analyst, Researcher

Current

RANEPA

Feb 2017 - Present (9 years 4 months)

Responsibilities:
 Conducting EDA, feature engineering, data visualization
 Formulating meaningful hypotheses
 Estimating linear and logistic regressions, etc.
Results:
 Successfully completed over 25 research projects for government and commercial
organizations (from the IT, oil & gas , etc.)
 Published papers in top-tier Russian scientific journals
 Prepared a PhD dissertation

Feature Engineering Data Visualization Logistic Regression Stata Hypothesis Development Research Modeling

Data Scientist / ML Engineer

Gaidar Institute for Economic Policy

Jan 2024 - Dec 2024 (11 months)

Responsibilities:
 Conducting research for major organizations/companies across various industries
(aviation and rail transportation, energy sector, etc.) Results:
 Made a significant contribution to the completion of over 5 research projects, enabling the team to meet client requirements within tight deadlines
 In collaboration with colleagues, created models that demonstrated high accuracy