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Full-Stack Dev &
Web3 Builder
CEO at Paynch

I build on-chain infrastructure for crypto payments and token presales — removing intermediaries, KYC, and unnecessary fees. 100+ projects launched across EVM and SVM networks.

10+Years dev
100+Projects
EVM+SVMNetworks

Builder at heart, founder by choice

I'm the Founder and Lead Developer of Paynch — a decentralized platform that enables crypto projects and merchants to launch token presales and accept payments with zero intermediaries, no KYC, and no recurring fees.

Web developer since 2015, bug hunter since 2017, and deep in blockchain since 2020. My background spans PHP, JavaScript, Solidity, Rust, Web3.js, Ethers.js, and every layer of the EVM and SVM stack. I've contributed to 100+ projects from payment integrations to fully decentralized presale ecosystems.

  • Smart contracts — Solidity & Rust
  • Full-stack — PHP, JS, MySQL, REST APIs
  • EVM: Ethereum, BSC, Polygon, Arbitrum, Base
  • Solana — web3.js, Phantom/Solflare integrations
  • Security — bug bounties, smart contract auditing
  • DeFi, tokenomics & presale architecture
LinkedIn

Experience

From bug hunting to founding a Web3 startup — a decade of building on the bleeding edge.

CEO & Founder

Sep 2025 — Present
Paynch · Full-time · Remote — Rio de Janeiro, Brazil

Building on-chain infrastructure that enables crypto projects and merchants to accept payments and launch token presales with true decentralization. Every transaction runs through automatically generated dedicated smart contracts — no KYC, no custodians, no recurring fees. Contributed to 100+ project launches from payment infrastructure to fully decentralized presale ecosystems.

SolidityPHPJavaScript Web3.jsEthers.jsEVM DeFiTokenomicsSmart Contracts

Full-Stack Developer

May 2023 — Present
Blockbusiness · Seasonal · Remote — Argentina

Developing and maintaining Web2 and Web3 applications. Building backend systems with PHP, MySQL and REST APIs. Writing smart contracts in Solidity and Rust. Creating dApps with wallet integration via Web3.js and Ethers.js, and integrating blockchain features into existing Web2 applications.

PHPMySQLREST API SolidityRustdApps

Web Developer

Oct 2021 — Apr 2022
Ethera Token · Contract · Miami, Florida — Hybrid

Web development and consulting for a token project based in Miami. Delivered frontend and backend solutions and provided technical advisory on Web3 integrations.

HTMLCSSJavaScriptWeb3

Information Security Analyst

May 2021 — Dec 2021
OpenSea · Part-time · Remote — United States

Discovered and reported security vulnerabilities through OpenSea's bug bounty program. Performed offensive security testing on Web3 applications and APIs, contributing to improving the security posture of the world's leading NFT marketplace. Conducted research on blockchain security and smart contract auditing.

Bug BountyWeb3 Security Smart Contract AuditOffensive Testing

Services

End-to-end solutions for Web3 projects, from smart contracts to full presale ecosystems.

Smart Contract Development

Custom Solidity contracts for EVM networks — presales, ERC-20/BEP-20 tokens, vesting, staking, cashback systems and payment gateways.

Token Presale Launch

Complete presale infrastructure: landing page, smart contracts, referral system, staking, vesting, Telegram bot, and sales dashboard.

Crypto Payment Gateway

1-line integration to accept USDT on BSC, Polygon, Arbitrum and Base. Dedicated smart contracts, no KYC, 15–30 sec confirmation.

Full-Stack dApp Development

Web2 + Web3 apps with wallet integration (WalletConnect, MetaMask, Phantom), PHP/MySQL backends and on-chain logic.

Security & Smart Contract Audit

Security review of smart contracts and Web3 APIs. Bug hunting experience since 2017, including work with OpenSea's bug bounty program.

Tokenomics & DeFi Architecture

Token model design, whitepaper, supply distribution, vesting schedules, and DeFi protocol integration for your crypto project.

Some of My Biggest Wins

Selected client projects — $4M+ raised across EVM and SVM networks.

Bored Pepe
Memecoin · $587.2K raised

Bored Pepe

Landing page, staking system, NFTs, whitepaper and tokenomics. Deployed on Ethereum.

View on PinkSale
SolidityWeb3.jsJSHTML/CSS
Duck Coin
Memecoin · $437.8K raised

Duck Coin

The first MEMEFI of this cycle on BSC. Landing page, staking, NFTs, NFT staking, airdrop points, whitepaper and tokenomics.

View on PinkSale
SolidityWeb3.jsJSHTML/CSS
Smudge Cat
Memecoin · $413.7K raised

Smudge Cat

Original MEME Cat on Solana. Landing page, staking system, whitepaper and tokenomics.

View on PinkSale
SolidityWeb3.jsJSHTML/CSS
Quantic Protocol
Utility · $287.3K raised

Quantic Protocol

BEP-20 Layer 1 utility token. Landing page, staking, NFTs, NFT staking, airdrop, whitepaper and tokenomics.

View on PinkSale
SolidityWeb3.jsJSHTML/CSS
Onno Vault
Utility · $214.2K raised

Onno Vault

High-performance Layer 2 secure staking and asset management on BSC. Landing page, staking, NFTs, NFT staking, airdrop points, whitepaper and tokenomics.

View on PinkSale
SolidityWeb3.jsJSHTML/CSS
Origen DeFi
Utility · $264K raised

Origen DeFi

0% fees, zero price impact trading, staking and perpetual trading platform. Landing page, staking, whitepaper and tokenomics.

View on PinkSale
SolidityWeb3.jsJSHTML/CSS
Trust Inspect
Utility · $130.7K raised

Trust Inspect

Smart contract security and economic audit platform. Landing page, backend, staking, whitepaper and tokenomics.

View on PinkSale
SolidityWeb3.jsJSPHPMySQLHTML/CSS
Truth Pay
Utility · $106.4K raised

Truth Pay

Blockchain-based payment platform and digital bank. Landing page, staking, NFTs, NFT staking, airdrop, whitepaper and tokenomics.

View on PinkSale
SolidityWeb3.jsJSHTML/CSS
Ethera
Utility · $1.1M raised

Ethera

Landing page, staking system, NFTs, whitepaper and tokenomics.

SolidityWeb3.jsJSHTML/CSS
Lishicoin
Memecoin · $350K raised

Lishicoin

LSC reflection token — auto-claim rewards on every transaction. Landing page, staking, NFTs, whitepaper and tokenomics.

SolidityWeb3.jsJSHTML/CSS
Meta Mong Us
Game · $200K raised

Meta Mong Us

Crypto game inspired by Among Us. Landing page, staking, NFTs, whitepaper and tokenomics.

SolidityWeb3.jsJSHTML/CSS
Ultron Vault
Utility · $529K raised

Ultron Vault

Decentralized Layer 2 scalability using zero-knowledge proofs. Landing page, staking, NFTs, whitepaper and tokenomics.

View on PinkSale
SolidityWeb3.jsJSHTML/CSS
Utility · $281.2K raised

X Social Network

Decentralized social network on Ethereum. Landing page, staking, mini games, NFTs, whitepaper and tokenomics.

View on PinkSale
SolidityWeb3.jsJSPHPMySQLHTML/CSS
Ponke BNB
Memecoin · $312.2k raised

Ponke BNB

Web3 Memecoin and NFT ecosystem on BSC. Landing page, staking system, whitepaper and tokenomics.

View on PinkSale
SolidityWeb3.jsEthers.jsJSHTML/CSS
Memecoin · $115.7k raised

Kermit The Frog

Memecoin on BSC. Landing page, staking system, whitepaper and tokenomics.

View on PinkSale
SolidityWeb3.jsEthers.jsJSHTML/CSS
SA Universe
Play to earn Game · In Development

San Andreas Universe

The first GTA San Andreas multiplayer world powered by a real blockchain economy. Earn, trade, and dominate — your grind has value. Play-to-earn on Solana.

View Website
PHPMySQLPawnScriptC++RustWeb3.jsREST APIJSHTML/CSS

Let's build together

Open to collaborations on Web3 projects, presales, smart contract audits, and full-stack blockchain development. Reach out on any platform below.