Alex Netto
Working at the intersection of game theory, economy, and bytes.
About
Born in Germany, raised in Brazil. Coding since 14, 6+ years in professional software engineering spanning fintech infrastructure, security, and product leadership. I founded and run blockful, a security and infrastructure company with a senior team of 10. Stanford invited speaker. Former competitive basketball player — sports taught me discipline and high agency. I speak Portuguese, English, Spanish, and German.
Optimism, courage, and integrity are my core values.
Now
- CEO & Founder at blockful — security and infrastructure
- ENS Delegate and Security Council member, protecting a ~$2B treasury
- Researching mechanism design, governance, and public goods funding
Experience
Founded a security and infrastructure company. Grew to 18 people, strategically consolidated to a senior team of 10. Directly sold $5M+ in services and software solutions. Three engagements with Brazil's Central Bank on CBDC programs. Organized event at B3 (Brazilian Stock Exchange) with DREX leadership. Co-designed a BRL-backed stablecoin architecture with Chainlink, Stark Bank, and Genial Investimentos.
Led a team of 4 at a real estate startup. Built proptech tools that drove a 70% increase in company revenue. Full ownership of technical strategy, product architecture, and delivery.
Built backend systems for a B2B financial services platform.
Developed solutions for one of Brazil's largest financial infrastructure providers — operates the Banco24Horas ATM network serving 150M+ transactions/year.
Open Source & Contributions
Projects
Governance monitoring platform. Built Arkham address enrichment, voting infrastructure, activity feeds, and per-DAO event thresholds.
ENS governance proposal review framework. Calldata decoding, verification, and security analysis for on-chain proposals protecting a ~$2B treasury.
Dead man's switch module for Gnosis Safe — automatic asset recovery if the owner becomes inactive.
Secure personal data sharing with expiring links.
Contributions
Discovered and responsibly disclosed a vulnerability that could have enabled a ~$150M attack on ENS DAO governance.
Co-authored Ethereum standard enabling smart contracts to redirect write operations to L2 chains, L1, or off-chain databases.
Co-authored a DAO interoperability standard for grant program reporting via Metagov/DAOstar.
Added ENS name resolution to account list items. Merged into the main Safe smart account wallet.
Added docs comments subcommand for managing Google Doc comments to this Google Suite CLI tool.
Speaking & Teaching
- Stanford University — invited speaker on security research (2025, confirmed 2026)
- ETH Denver 2023, SmartCon 2023 — bootcamp instructor
- Federal University of Paraná — blockchain fundamentals bootcamp
- ENS Workshop at ETH Samba
- Speaker at conferences across Brazil, US (Denver, SF, NYC), Switzerland, Turkey, and Spain
Awards
Academic
- Gold Medal — State Math Olympic
- Silver Medal — Brazilian National Math Olympic
Hackathons — 15+ prizes
- ETH Belgrade 2024 — 1st place, largest prize
- ETHGlobal Brussels — Uniswap + Pancakeswap prizes
- SmartCon 2023 — 1st place, Chainlink Functions
- ETH Rio 2023 — 2 categories, AI delegates
- ETHGlobal NYC — 2 category prizes
- ETH Samba 2023 — 3 category prizes
- ETH São Paulo 2022 — grand prize
- ETH Rio 2022 — 1st place, DeFi
- NASA SpaceApps — 1st place
- AutTech Hackathon — 1st place
Community
- Organized ETHFloripa, ZuFloripa, and frENS hour @ Devconnect 2023
- Event at B3 headquarters with Brazil's CBDC director
- Kernel Fellow, Chainlink Developer Expert, Zuzalian
- ENS & Chainlink meetup @ ETH Belgrade
Education
Computer Science (3 years, dropout) — Federal University of Santa Catarina (UFSC), Florianópolis, Brazil.