Jeff Prestes
Blockchain Specialist at F1RST Digital Services
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolJeff Prestes is a Blockchain Specialist with 12 years of software engineering experience, focused on architecting DApps and tokenization solutions for EVM-compatible networks using Solidity, Go, and JavaScript. Based in São Paulo, he has shaped blockchain strategy and implementation across industry and consulting roles—from leading smart contract design and permissioned EVM deployments at EY to prototyping cross-chain and ZKP-enabled systems at Panther Protocol and Panther-adjacent projects. He blends hands-on development (Foundry, Hardhat, Circom, Groth16) with product and team leadership, having hired and run engineering teams and taught smart contract programming to legal professionals. Comfortable with enterprise-grade stacks like Hyperledger Besu and CBDC/RWA use cases, he brings a pragmatic focus on auditability and business assessment alongside technical architecture. A longtime developer evangelist and architect, he pairs deep protocol knowledge with experience turning regulatory and commercial requirements into secure, auditable blockchain products.
12 years of coding experience
25 years of employment as a software developer
E-ATTTechnical Degree in Data Processing IT, Technical Degree in Data Processing IT at Colégio São Luís
English, Portuguese, Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (200)
geth10
aprender10
abi10
martini10
p2p10
middleware10
rio10
api10
golang10
router10
mux10
go10
ethereum10
blockchain10
mercurius10
Programming languages (14)
Github contributions (5)
jeffprestes/verificaassinaturacrypto
May 2019 - Dec 2022
Samples of how to sign data and later verifies it using ECDSA and Keccak256 and how to encrypt and decrypt using EC and secp256k1 parameters
Contributions:12 commits, 12 pushes, 1 branch in 3 years 7 months
cryptographyparameterskeccak256verifiesrsa
jeffprestes/candies-client
Oct 2014 - Nov 2019
MQTT client and Motor controller of Candy Machine
Contributions:11 commits, 1 PR, 5 pushes in 5 years 1 month
controllermotor-controllercandymqttmotor
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