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Vladimir LopatkinVL
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Vladimir Lopatkin

@vladimirlopatkin

ML engineer at Semrush who built production data-quality checks and a Kubernetes RAG app with an evaluation harness.

Georgia
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At Semrush, I owned a shared Python library and extended the data-quality pipeline that checks external suppliers before their data enters production. I reconciled dependencies across three repositories and helped get their CI/CD pipelines green end to end.

I also migrated the traffic model’s training data from GA3 to GA4 using a gradual blend validated on one country before rollout. For the model, I built a URL classifier for identifying completed purchases and delivered scored results with a written analysis.

On HF Model Finder, I built a RAG search over Hugging Face model cards, with an evaluation harness to compare retrieval and answer-generation choices. The project includes Docker Compose and Kubernetes deployments, tests, and CI.

Experience

Work history, roles, and key accomplishments

DA

Machine Learning Engineer

Daiger

May 2023 - Sep 2023 (4 months)

Converted manual notebooks into a versioned DVC pipeline for credit default model, integrated Hydra and MLflow, built target-calculation stage, and fixed CI pipeline.

Raiffeisen Bank Russia logoRR

Data Scientist

May 2021 - Mar 2022 (10 months)

Built asset-purchase module from scratch and implemented a credit cross-sale model from concept to production.

X5 Retail Group logoXG

Data Scientist

X5 Retail Group

Jul 2020 - May 2021 (10 months)

Validated methodology and statistical correctness of A/B tests, performed factor analysis on shop-performance data, and built risk prediction models.

RG

Data Scientist

Rubbles (SBDA Group)

Apr 2019 - Jul 2020 (1 year 3 months)

Developed ATM malfunction prediction and restaurant demand prediction models, built retail analytics system, and conducted technical interviews.

GC

Junior Software Developer

GlowByte Consulting

Nov 2017 - Dec 2018 (1 year 1 month)

Developed backend components of a telecom notification system, internal HR-automation tooling, and data validation tests and ETL.

Education

Degrees, certifications, and relevant coursework

HSE University logoHU

HSE University

Master of Science, Data Science

2017 - 2019

MSc in Data Science from HSE University, Faculty of Computer Science, completed in 2019.

Lomonosov Moscow State University logoLU

Lomonosov Moscow State University

Bachelor of Science, Computer Science

2013 - 2017

BSc in Computer Science, System Programming from Lomonosov Moscow State University, Faculty of Computational Mathematics and Cybernetics, completed in 2017.

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