Kofi K
Senior Data Scientist
Ghana
Summary
👤
Senior🎓
Top SchoolKofi K is a Senior Data Scientist with eight years of experience applying machine learning, SQL-driven analytics, and data engineering to web3 and traditional engineering problems. Based in Ghana, he has consulted for major crypto firms (Coinbase, Alchemy, Safe, Scroll, Arbitrum), contributed core data work to DefiLlama and Dune Analytics—building cross-chain ETL and optimized SQL rollups—and now works at Coinbase. His background bridges applied ML research (published MEP detection models at the University of Edinburgh) and systems engineering from leading Hyperloop telemetry and control software teams. Known for turning complex, noisy blockchain data into reliable pipelines and actionable metrics, he combines academic rigor with hands-on product delivery across high-traffic platforms. A less obvious strength is his pattern of moving between research, startup ops, and consulting roles, giving him both breadth across the stack and depth in productionizing ML and analytics.
8 years of coding experience
5 years of employment as a software developer
Civil Engineering MEng(Hons), 2:1, Civil Engineering MEng(Hons), 2:1 at The University of Edinburgh
Github Skills (9)
data-pipeline10
data-pipelines10
sql10
etl-process10
ethereum10
data-engineering10
optim9
opt9
arb9
Programming languages (4)
Github contributions (5)
duneanalytics/spellbook
Sep 2022 - Oct 2022
SQL views for Dune
Role in this project:
Data Engineer
Data EngineerContributions:22 reviews, 2 commits, 28 PRs in 10 days
Contributions summary:Kofi primarily focused on developing and maintaining data pipelines and ETL processes for the Dune Analytics project, specifically related to rollup economics and various blockchain data sources. Their contributions include creating new tables, modifying existing ones, and incorporating data from multiple blockchains, including Ethereum, Arbitrum, Optimism, and others. They demonstrate expertise in SQL by constructing complex queries and optimizing data loading and transformation processes within the Dune environment.
sqldatabasemysqldune
Jam516/BundleBear
Jul 2023 - Mar 2025
Open data for ERC-4337 smart accounts
Contributions:45 PRs, 29 pushes, 23 branches in 1 year 8 months
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