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Anthony ShumanovAS
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Anthony Shumanov

@anthonyshumanov

I rescue and harden L1/L2 blockchain networks through C++ protocol engineering and crisis response.

Bulgaria
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What I'm looking for

I'm looking to lead or contribute to critical blockchain protocol work involving L1/L2 stability, consensus, network recovery, smart contracts, and low-level C++ systems engineering.

I've stabilized blockchain networks at Ice Open Network, including a TON fork, validator-node optimization, L1 emergency response, and hard-fork coordination. I also built Func smart contracts and tested secure coin-swap bridges.

Across CakeDeFi, LBRY, Omni Foundation, and nChain, I've maintained and extended Bitcoin-derived nodes, redesigned storage, improved wallets, and delivered C++ and Python tests. My work includes resolving a PoW-to-PoS network stall, maintaining BitcoinSV, adding SegWit and Taproot support, and contributing fixes to Bitcoin Core.

With more than 15 years in C++ and distributed systems, I focus on consensus, protocol stability, low-level performance, and recovery during network-critical incidents. I also contribute to open source as a KDE Karbon maintainer and authored the zkStacks Layer 2 whitepaper.

Experience

Work history, roles, and key accomplishments

Omni Foundation logoOF
Current

Blockchain Consultant

Omni Foundation

Feb 2023 - Present (3 years 7 months)

Provided NFT rollback support and optimizations on Omni layer, merged newer Bitcoin versions, and added support for witness v0/v1 (segwit/taproot). Improved Qt wallet and redesigned database storage.

nChain logoNC

Blockchain Consultant

nChain

Aug 2023 - Apr 2024 (8 months)

Maintained BitcoinSV node, wrote unit/bench tests in C++ and functional tests in Python, and worked on stability and security of the node.

TR

Subject Matter Expert - Blockchain

Triplebyte

Aug 2022 - Dec 2022 (4 months)

Reviewed and updated quiz items in database, wrote and audited Solidity smart contracts, and coordinated with other SMEs to align quiz levels.

LBRY logoLB

Blockchain C++ Engineer

LBRY

May 2018 - Apr 2020 (1 year 11 months)

Forked Bitcoin Core to store blockchain metadata, implemented and extended prefix trie, and validated SQLite storage. Managed wallet and transaction fixes, hash computation, and code base simplification.

Easydex logoEA

Backend C++ Specialist

Easydex

May 2018 - Jan 2019 (8 months)

Maintained and extended Steem forks in C++, worked on a social media censorship resistance platform, and developed abstract Python APIs over py-bitshares, web3.py, and steem-python for decentralized exchange.

Visteon logoVI

CI DevOps

Aug 2016 - May 2018 (1 year 9 months)

Automated build processes on Jenkins, managed version control (RTC), and verified successful builds. Improved code safety via static analysis (Coverity/Misra) and minimized regressions through unit test scheduling.

AL

C/C++ Developer

Adiasys LTD

Feb 2008 - Jul 2016 (8 years 5 months)

Designed, developed, and maintained a cross-platform C/C++ framework for automotive diagnostic systems on embedded hardware and desktop. Implemented database updater/synchronizer between MySQL and SQLite, and performed code generation and testing.

Education

Degrees, certifications, and relevant coursework

Technical University of Sofia - branch Plovdiv logoTP

Technical University of Sofia - branch Plovdiv

Master, Electronics Engineering

2002 - 2008

Earned a Master's degree in Electronics Engineering from the Technical University of Sofia, branch Plovdiv, from 2002 to 2008.

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