Alberto Furszyfer
GERENTE DE VENTAS at MONICA KON & ASOC. CONSULTORES
Argentina
Summary
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RockstarAlberto Furszyfer is an experienced technical professional with 11 years of hands-on software engineering experience and a current role as Gerente de Ventas in Argentina. Although leading sales, he brings deep backend expertise demonstrated by meaningful contributions to major open-source cryptocurrency projects including Bitcoin Core, Zcash, and PIVX—work that touched wallet logic, coin selection, transaction correctness, and performance-sensitive refactors. He combines product-facing commercial leadership with low-level blockchain and wallet engineering, making him effective at translating complex technical trade-offs into practical business decisions. Notably, his commits to Bitcoin Core and other prominent repos reveal a focus on correctness, efficiency, and secure transaction handling rather than superficial feature work. This blend of sales leadership and proven crypto-core development gives him a rare cross-functional perspective valuable for companies bridging product, engineering, and crypto ecosystems.
11 years of coding experience
Github Skills (26)
crypto-wallet10
transactional10
consensus10
transaction10
wallet10
c-language10
apidoc10
zcash10
bitcoin-wallet10
bitcoin10
chain10
bitcoins10
api10
cryptography10
blockchain10
Programming languages (11)
Github contributions (5)
PIVX-Project/PIVX
Jul 2017 - Mar 2022
Protected Instant Verified Transactions - Core wallet.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:13 releases, 1083 reviews, 3264 commits in 4 years 8 months
Contributions summary:Alberto contributed to the PIVX project by implementing various features and fixing bugs in the core blockchain logic. Their work included adding a new DNS seeder, removing unused build date information, integrating quorum relay members, and fixing vulnerabilities in transaction processing. They also implemented a database migration and improved the handling of invalid or outdated transactions. The commits demonstrate an understanding of the blockchain consensus mechanisms.
protectedmasternodesproof-of-stakewalletpos
bitcoin/bitcoin
Jan 2020 - Dec 2022
Bitcoin Core integration/staging tree
Role in this project:Back-end Developer
Back-end DeveloperContributions:1921 reviews, 105 commits, 139 PRs in 2 years 11 months
Contributions summary:Alberto's contributions primarily involved modifying and enhancing core components of the Bitcoin Core software. They introduced new features to the client model, wallet, and transaction record, such as adding best block hash to signals and implementing support for the 'getreceivedbylabel' RPC call. Additionally, the user made several code refactors for performance improvements in areas such as coin selection and database transactions within the wallet. These changes demonstrate a focus on improving the functionality, efficiency, and correctness of the Bitcoin Core codebase.
cryptographyp2pc-plus-pluscryptocurrencybitcoin-core
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