
Anthony Shumanov
@anthonyshumanov
I rescue and harden L1/L2 blockchain networks through C++ protocol engineering and crisis response.
What I'm looking for
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
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.
Blockchain Expert
Ice Open Network
Jun 2024 - Apr 2026 (1 year 10 months)
Led stabilization of a TON blockchain fork, focusing on validator node optimization and network resilience. Developed core smart contracts in Func and built/tested secure coin-swap bridges.
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.
Lead Blockchain C++ Engineer
CakeDefi
Oct 2020 - Jul 2022 (1 year 9 months)
Improved wallet and core performance, implemented account validation layer in Merkle root, and architected rewards redistribution based on lazy calculation. Resolved critical performance bottlenecks and synchronization issues.
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.
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.
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.
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
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.
Availability
Location
Authorized to work in
Salary expectations
Job categories
Skills
Interested in hiring Anthony?
You can contact Anthony and 90k+ other talented remote workers on Himalayas.
Message AnthonyGet matched with your dream remote job
Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!
