Frontend Engineer

About the Role

We are looking for a Senior Frontend Developer to join our team at Pet360.

Pet360 is the first blockchain-based pet ecosystem in Brazil. With 160 million pets and a $60 billion market, we see a massive opportunity to transform pet care through Web3 technology.

Our Web2 platform is 75% complete. We are now building the Web3 layer from scratch — pet NFT passports, vaccine certificates, smart contract adoptions, and on-chain pet insurance.

Our former frontend developer stepped away, so we are looking for someone to take ownership of the frontend and build the Web3 user experience.

What You Will Do

• Complete remaining Web2 frontend features (OTP endpoints, appointment status, forms, missing pages)
• Build Web3 frontend features (wallet connection using Wagmi + RainbowKit, minting UI for pet NFTs, transaction flows)
• Implement responsive, intuitive interfaces for non-crypto-native users in Brazil
• Work alongside our backend and Solidity developers
• Own the frontend architecture and developer experience

What We Are Looking For

• 4+ years of frontend development experience
• Deep expertise in React, Next.js, TypeScript, and Tailwind CSS
• Experience with Web3 frontend libraries (Wagmi, RainbowKit, ethers.js)
• Understanding of wallet integration and blockchain concepts
• Experience building responsive, intuitive interfaces for non-technical users
• Professional English proficiency

Nice to have:

• Experience with smart contract integration
• Knowledge of ERC-721 and ERC-1155 standards
• Experience working in remote, distributed teams
• Experience with AI-assisted development (Cursor, Claude Code)

What We Offer

• Fully remote — work from anywhere in the world
• Contract with long-term growth potential
• Opportunity to convert to a full-time role after the first 2 or 3 months
• 30+ hours per week
• Competitive hourly rate ($70-100 per hour, negotiable)
• Founding team token allocation
• Payment in crypto (USDC/USDT) or fiat (Wise/PayPal) – your preference
  
  
  How to Apply:
• Share your resume and GitHub/LinkedIn profile.
• Tell us why you are the best fit for this role.