Blockchain architect and protocol engineer with 5+ years building secure DeFi protocols
and smart contracts. Programming since age 12, I specialize in Solidity development,
formal verification, and EVM optimization. Recently architected derivatives trading
protocols, P2P insurance systems, and real-time multiplayer game engines using
Elixir/Phoenix.
Background spans traditional quantitative finance to cutting-edge blockchain
development, with proven experience leading distributed teams across multiple cultures
and time zones. Passionate about functional programming principles and clean development
workflows.
Seeking senior protocol engineering roles at DeFi protocols, L1/L2 blockchain projects,
or web3 infrastructure companies where I can architect secure, scalable systems and lead
technical teams.
Experience: 11 years
Yearly salary: $250,000
Hourly rate: $140
Nationality: 🇧🇷 Brazil
Residency: 🇮🇱 Israel
Experience
CTO
Spin Gaming 2025 - 2025
Designed high-performance FSM game engine for real-time multiplayer at scale; Architected low-latency systems using Elixir/Phoenix with WebSockets; Applied CQRS pattern to optimize data flow and system responsiveness
Blockchain Architect
The Tinkering Society 2022 - 2025
Wrote pool and trading match engine contracts for derivatives protocol; Performed self-audit, fuzz-testing, and EVM gas optimization; Integrated Oracle systems and created audit workflows; Conducted bytecode inspection and Yul optimizations
Blockchain Architect
Fuse 2021 - 2022
L2 research and architecture: Arbitrum AVM, Optimism deployment; Go development for blockchain infrastructure and smart contracts
Founder & CTO
InsurDAO 2020 - 2025
Developed P2P insurance protocol with automated actuarial algorithms; Built claim management back-office and DeFi liquidity pool integration; Created Ethereum EVM-compatible smart contracts
VP R&D, Co-founder
WEEL 2015 - 2020
Led full-stack architecture using Elixir/Erlang and Angular; Developed ETL workflows and data warehouses for real-time analytics; Designed microservices with GraphQL APIs and CI/CD automation
Head of Quantitative Trading
SLW Corretora 2010 - 2012
Developed trading strategies and options pricing platform for structured products; Built ATS implementation using C#, C++, and Java
Quantitative Trader & Developer
Banco Daycoval 2009 - 2010
Implemented quantitative trading strategies using CEP Apama and C# OpenQuant platforms; Developed execution strategies for pair trading with Bovespa co-location deployment
Skills
elixir
erlang
evm
rust
solidity
english
portuguese
spanish
