- Web3 Developer
- Blockchain Engineer
- Privacy & ZK Systems
- FHE Cryptography
- Educator
Building privacy-first decentralized systems — from FHE confidential tokens on Solana to ZK proof circuits on EVM. 8+ years shipping production-grade blockchain infrastructure.
Selected Work
Projects
Piilo
Confidential Payments on Stellar
Privacy protocol for Stellar Soroban that hides transfer amounts and balances using Pedersen commitments and Groth16 ZK proofs — while keeping addresses public for institutional AML/KYC compliance.
- ◆Groth16 proofs over BLS12-381 (native to Soroban protocol 25) — client-side proving with snarkjs WASM
- ◆Account model over Pedersen commitments: one encrypted balance per user, no UTXO fragmentation
- ◆Built-in auditor hook: amounts encrypted under auditor key for regulatory transparency
- ◆Multi-token (XLM, USDC) with commitments stored on-chain — no indexer dependency
ciFHEr
Confidential Token on Solana using Fully Homomorphic Encryption
A fully-collateralized privacy wrapper for SOL where balances and transfer amounts live on-chain as genuine FHE ciphertexts. Validators and observers see only encrypted bytes — additions and subtractions happen homomorphically without ever decrypting.
- —Homomorphic arithmetic via tfhe-rs 0.7 — encrypted balances operated on without decryption at any point
- —Chunked ciphertext write system to fit 16 KB FHE blobs within Solana's 1,232-byte tx constraint (880B/tx)
- —Full production stack: Anchor programs, off-chain Node.js worker, Rust FHE sidecar, React + Phantom frontend
- —10 passing integration tests on devnet
🏆 SuperteamBR Winner
BHOnchain 2026
Swirl
ZK Privacy Pool on Mantle Network
Fixed-denomination privacy pool for MNT using Poseidon hashing and Noir ZK proofs to fully unlink deposits from withdrawals on-chain.
- —Poseidon-based incremental Merkle tree (depth 20, 1M leaves) for commitment storage
- —Complete Noir circuit: proves secret/nullifier preimage + Merkle inclusion, compiled to Solidity verifier via Barretenberg
- —Nullifier system preventing double-spends with zero on-chain linkage to deposit address
Background
About
Results-driven Web3 developer and educator with 8+ years of freelance software engineering experience. Specialist in smart contract architecture, privacy-preserving systems, on-chain data engineering, and EVM tooling.
Based in Rio de Janeiro, Brazil. Holds a B.Sc. in Applied and Computational Mathematics (UFRRJ) and Graduate Studies in Systems and Computer Engineering (UFRJ).
Active Web3 educator — teaching at iRede Web3.0, mentoring at Instituto Web3EduBrasil, and coaching teams at national hackathons.
Chains
8+
Years experience
6
Chains deployed
2×
Hackathon winner
Technical Skills
Career
Experience
Web3 Instructor & Mentor
iRede Web3.0
- –Teaching a structured curriculum: smart contract development, DApp architecture, and blockchain fundamentals
- –Delivering code reviews, live debugging sessions, and one-on-one mentoring
- –Developing exercises reinforcing Solidity, Ethers.js, and EVM concepts
- –Supporting students through end-to-end decentralized application capstone projects
Mentor
Instituto Web3EduBrasil
- –Blockchain education events promoting Web3 adoption across Brazil
- –Hands-on workshops: smart contract development, DApp architecture, ZK proofs
- –Guiding developers through practical exercises in Solidity and on-chain system design
Hackathon Mentor
Monad Blitz Brazil
- –Mentored competing teams at two events (Rio de Janeiro & São Paulo)
- –Coached participants on security best practices, rapid prototyping, and MVP delivery
- –Hands-on support with Solidity debugging, contract optimization, and Web3 integrations
Web3 Developer & Full-Stack Engineer
Freelance — Global Clients
- –Production smart contracts on Ethereum and EVM-compatible chains — DeFi and NFT protocols
- –High-performance automation scripts, trading bots, and on-chain data extractors in Python
- –Full-stack DApp frontends, dashboards, and Ethers.js/Web3.js integrations for DeFi, gaming, and NFT clients
- –2D/3D multiplayer games using Godot and Unity, handling networking, gameplay logic, and deployment
Education
Graduate Studies — Systems and Computer Engineering
Universidade Federal do Rio de Janeiro (UFRJ)
2019 – 2024
B.Sc. — Applied and Computational Mathematics
Universidade Federal Rural do Rio de Janeiro (UFRRJ)
2019 – 2024
Competitions
Hackathons
2026
BHOnchain 2026
SuperteamBR Track · Belo Horizonte, Brazil
ciFHEr
2026
ETH Global OpenAgents
Agentic Systems · Remote
AI agent trading war simulation using Uniswap API
2025
ETHLatam
Base Miniapp Track · São Paulo, Brazil
Base miniapp
2025
ETH Global HackMoney
DeFi Systems · Remote
DeFi macro system — atomic multi-operation execution in a single transaction