Evgeny Medvedev
Co-Founder at AI Refounder
Thailand
Summary
🤩
Rockstar🎓
Top SchoolEvgeny Medvedev is a seasoned software engineer and entrepreneur with 11 years of experience building data-intensive backends and analytics platforms, best known as co-founder of Nansen and creator of the widely used blockchain-etl GitHub projects. He specializes in blockchain ETL, data pipeline architecture and large-scale export workflows—having implemented Airflow DAGs, checkpointing, trace parsing, and BigQuery exports for Ethereum and multiple other chains. As a hands-on solutions architect he bridges product and engineering, driving data infrastructure improvements that make on-chain data accessible for analytics teams. Based in Thailand, he has repeatedly transitioned from contractor and architect roles into founding startups and DAOs, bringing operational rigor to early-stage ventures. An under-the-radar strength is his focus on practical tooling—refactoring CLIs and exporters to improve clarity and multi-chain support—so teams can ship reproducible, production-ready pipelines quickly.
11 years of coding experience
16 years of employment as a software developer
Master's degree Computer Science, Master's degree Computer Science at Omsk State University (OSU)
Stackoverflow
3,695reputation
409kreached
50answers
13questions
rest
top-5%
spring-boot
top-5%
spring
top-5%
java
top-5%
google-bigquery
top-5%
Github Skills (32)
bigquery10
data-pipelines10
python10
data-engineering10
bitcoin10
bitcoins10
etl10
google-cloud10
ethereum10
blockchain10
csv10
data-pipeline10
command-line-interface9
google-bigquery9
json9
Programming languages (15)
Github contributions (5)
blockchain-etl/ethereum-etl
May 2018 - Oct 2022
Python scripts for ETL (extract, transform and load) jobs for Ethereum blocks, transactions, ERC20 / ERC721 tokens, transfers, receipts, logs, contracts, internal transactions. Data is available in Google BigQuery https://goo.gl/oY5BCQ
Role in this project:
Backend Developer
Backend DeveloperContributions:27 releases, 14 reviews, 802 commits in 4 years 6 months
Contributions summary:Evgeny appears to be a backend developer working on Ethereum ETL pipelines, as evidenced by their commits focusing on implementing and modifying Python scripts. Their contributions involve core functionalities for processing and exporting Ethereum blockchain data, including the creation of item exporters, data mapping, and the incorporation of features like extracting token transfers and the processing of geth traces. They have focused on enhancing the functionality and the data exported from the blockchain.
csvgcppythontokensethereum
blockchain-etl/bitcoin-etl
Sep 2018 - Apr 2022
ETL scripts for Bitcoin, Litecoin, Dash, Zcash, Doge, Bitcoin Cash. Available in Google BigQuery https://goo.gl/oY5BCQ
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 releases, 182 commits, 29 PRs in 3 years 7 months
Contributions summary:Evgeny primarily refactored and modified existing Python code within the `bitcoinetl` library. These changes involved updating command-line interface (CLI) options, refactoring block and transaction export jobs, removing unnecessary fields, and renaming variables for improved clarity. The user's contributions focused on refining the codebase and updating the codebase for use with multiple blockchain.
gcpgoogle-pubsubbitcoin-cashweb3goo
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