Carlo Mazzaferro
Senior Backend Engineer at Tools for Humanity
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolCarlo Mazzaferro is a Senior Backend Engineer and data scientist with 10 years of experience building production-grade ML infrastructure, reliability tooling, and database-driven backend services across startups and scaleups. He’s contributed to cross-chain interoperability work at Connext and now supports Worldcoin’s privacy-preserving identity and financial network at Tools for Humanity, blending security, automation, and data engineering. As a co-founder of Ionic Protocol and an early engineer at Taktile, he excels at turning research-grade ML into scalable, user-friendly platforms using Go, Python, Kubernetes and modern data primitives. An active open-source maintainer, his GitHub reflects a focus on ML infra and Web3, and he often bridges teams by creating tools that let data scientists ship faster. Trained as a bioengineer with a math/statistics minor from UCSD, he brings a research mindset to pragmatic system design and cross-disciplinary collaboration.
10 years of coding experience
6 years of employment as a software developer
University of California, San Diego
English, Portuguese, Italian
Stackoverflow
838reputation
66kreached
17answers
10questions
Github Skills (15)
postgresql10
sql10
database-design9
subgraph8
ethereum7
blockchain7
xgboost6
kite6
logistic-regression6
machine-learning6
pycharm6
python6
matplotlib6
scikit-learn6
classification6
Programming languages (9)
Github contributions (5)
connext/monorepo
Mar 2022 - Dec 2022
Connext is a modular stack for trust-minimized, generalized communication between blockchains.
Role in this project:
Backend Engineer & Database Engineer
Backend Engineer & Database EngineerContributions:58 reviews, 363 commits, 189 PRs in 9 months
Contributions summary:Carlo primarily contributed to backend development and database management within the Connext monorepo, which focuses on blockchain interoperability. Their commits involved creating and managing database roles, granting permissions for database access and altering database schemas, indicating a focus on database-related operations. In addition, changes were made within a Subgraph adapter, likely related to data structures and query logic, demonstrating an understanding of subgraph development and its role in fetching blockchain data.
ethereumcrosschainprotocolblockchaininteroperability
carlomazzaferro/neoantigen
Jul 2016 - Feb 2017
Contributions:133 commits, 13 pushes, 1 branch in 6 months
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