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English - Fluent Portuguese - Native or Bilingual

About Me

I am a Tech Lead and Engineering Manager with 19+ years of experience in software and 12+ years leading teams of up to 30 people.

I have worked across CTO, Tech Lead, Business Analyst, Product Owner, and Project Manager responsibilities, with a strong focus on turning business goals into practical technical roadmaps.

I co-founded Simpli and helped grow it from a two-person startup into a 30-person software house that delivered more than 50 products for startups and enterprise clients.

My background combines hands-on engineering with leadership. I enjoy architecture, requirements discovery, solution design, documentation, and aligning delivery with real business needs.

In recent years, I have also been deeply involved in blockchain, smart contracts, DeFi protocols, and AI-assisted development workflows, while staying close enough to the code to maintain technical credibility.

I value listening, delegation, collaboration, and mentoring. I am looking for a role where I can own both the technical direction and the people side of a team.

Notice Period: Immediately

Skills

Project ManagementJavaScriptJavaReactProduct ManagementTypeScriptBlockchainPostgreSQLMySQLMentoringiOSMongoDBGraphQLKotlinRESTBusiness AnalysisTechnical LeadershipWeb DevelopmentEngineering ManagementNext.jsWeb3EthereumSoftware ArchitectureAndroidDeFiRequirements GatheringSmart ContractsFlowSolidityWebSocketsPrismaAI EngineeringSolanaFoundryAgent DevelopmentUniswapWagmi

Experience

Software Engineer | Main Smart Contract Developer @ S0$#WS0
Sep 2025 - May 2026

Worked on the design and development of advanced DeFi protocols, focusing on composability, capital efficiency, and developer experience. Developed protocols end to end, including architecture, implementation, and testing, with security and gas optimization as constant priorities. Integrated specialized tooling and AI agents into the development and auditing workflow.

Software Engineer | Main Smart Contract Developer @ S0$#WS0
Mar 2026 - May 2026

Designed a hybrid market model for a prediction market protocol combining yield generation with market-based price discovery. Started with a parimutuel phase and transitioned into a Central Limit Order Book model.

Software Engineer | Main Smart Contract Developer @ S0$#WS0
Sep 2025 - Feb 2026

Contributed to core architecture and designed reusable protocol modules with a strong focus on composability. Designed and implemented a launchpad workflow powered by a bonding curve, graduating into a Uniswap v3 liquidity pool. Built a Uniswap v4 hook combining CLMM behavior with a bonding curve model and developed abstractions for modular DeFi primitives.

Mentor @ S0$#WS0
Feb 2025 - Jan 2026

Mentored new developers entering the Ethereum ecosystem. Guided participants through their first steps contributing to open source using Solidity, Hardhat, Wagmi, and Next.js.

Software Engineer | CTO @ S0$#WS0
Oct 2013 - May 2025

Co-founded and scaled a software house from a startup into a 30-person team delivering more than 50 digital products. Led system architecture, technical roadmaps, documentation, research, process design, and technology adoption while balancing technical leadership with business strategy.

Software Engineer | Product Owner | UI/UX Designer @ S0$#WS0
Jun 2024 - Feb 2025

Owned product vision and usability, developed the wallet frontend, and contributed to smart contracts. Built a wallet designed for non-blockchain users using Account Abstraction, WebAuthn, and gasless transactions.

Software Engineer | Tech Lead @ S0$#WS0
Aug 2023 - Jul 2024

Created a multi-chain library for common wallet operations, abstracting and normalizing blockchain-specific behavior across Neo N3, Neo Legacy, and EVM networks. The library is used by Neon Wallet desktop and mobile applications.

Software Engineer | Tech Lead @ S0$#WS0
Feb 2022 - Apr 2023

Architected a multi-chain platform with NFT-based authentication mechanisms for Neo and Flow. Built smart contracts on both networks, an SDK integrating both simultaneously, and several key integrations.

Software Engineer | Tech Lead @ S0$#WS0
Jul 2021 - Jul 2024

Architected the mobile version and later contributed to the desktop app. Solved challenges involving multiple blockchain networks, multiple accounts, WalletConnect integration, and network interaction protocols.

Software Engineer | Tech Lead @ S0$#WS0
Oct 2019 - Nov 2020

Architected and developed a safety, health, and environment management platform for global company units. Integrated Azure Active Directory for authentication and user management.

Software Engineer | Tech Lead @ S0$#WS0
Nov 2016 - Jun 2018

Worked on a B2B delivery services platform integrating multiple systems and handling large data volumes. Helped support nearly 60,000 couriers, 50 million invoices, and 2,000 companies registered.

Software Engineer | Tech Lead @ S0$#WS0
Sep 2015 - Jul 2017

Led the initial planning, structuring, and development of a food delivery app for iOS, Android, and web. The product gained recognition through acceleration by 500 Startups.

Software Engineer @ S0$#WS0
Aug 2014 - Oct 2014

Helped develop an Android application to automate quality control tests for devices, covering CPU, RAM, GPS, screen brightness, and touch functionality.

Education

S0$#WS0$#W
Jan 2008 - Dec 2011

Bachelor, Computer Science

Bachelor's degree in Computer Science from one of Brazil's leading higher education institutions.

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