Zoran Cvetkov

Zurich, Zurich, Switzerland

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Summary

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Rockstar

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Top School

Zoran Cvetkov is a systems-focused software engineer with 12 years of professional experience building high-performance C++ and Rust systems, particularly in blockchain and backend infrastructure. He has contributed to core projects like The Graph's graph-node—improving substreams processing, protobuf structures, observability and DB migrations—demonstrating a knack for maintainability and operational reliability. His career spans cryptographic and secure-hardware work at Securosys, distributed systems at DFINITY, and applied geometry and optimization in C++ earlier in his career, reflecting deep algorithmic and systems expertise. Based in Zurich and holding an MSc in Computer Science from the Technical University of Sofia, he combines low-level engineering rigor with a practical focus on metrics and error handling that keeps complex pipelines robust in production.

12 years of coding experience

21 years of employment as a software developer

Master of Science (MSc), Computer Science, Master of Science (MSc), Computer Science at Technical University of Sofia

Github Skills (11)

rust10

protobuffer10

protobuf10

postgresql9

logging9

database-migration9

database-migrations9

testing8

blockchain8

ethereum8

developer-tools8

Programming languages (1)

Rust

Github contributions (4)

graphprotocol/graph-node

Oct 2023 - Apr 2025

Graph Node indexes data from blockchains such as Ethereum and serves it over GraphQL

Role in this project:

Back-end Developer

Contributions:162 reviews, 88 PRs, 543 pushes in 1 year 5 months

Contributions summary:Zoran primarily focused on modifying and refactoring the codebase related to substreams processing within the Graph Node. This involved updating protobuf structures, improving logging, and implementing error handling. Additionally, the user contributed to dependency updates and database schema migrations, showcasing a focus on the core functionality and maintainability of the backend system. They also implemented the addition of metrics, and changes to calculations of chunk sizes.

node-graphipfsgraphql-apiindexesethereum

zorancvetkov/orictools

Dec 2013 - Jan 2014

Contributions:21 commits in 6 days

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