Founding Blockchain Engineer / Full-Stack Dev (Web3 x PetTech) – Build from Zero in Brazil at Block Sherpa
Brazil has 160 million pets—and exactly zero blockchain infrastructure serving them. We are building Pet360 to change that.
We already have a Web2 platform that is 75% built and ready for integration. Now, we are tearing down the walls and rebuilding the infrastructure layer from scratch. This isn't a migration; it is a greenfield build. You won't be maintaining legacy code—you will be designing the architecture, choosing the stack, and shipping the contracts that will tokenize pet care for an entire continent.
What You’ll Build (The Core Features)
Pet NFT Passports: Immutable, on-chain medical histories that travel with the pet.
Vaccine Certificate NFTs: Verifiable credentials to replace paper records.
Smart Contract Adoptions: Automating the transfer of ownership and medical data.
On-Chain Insurance: Transparent, programmable payout logic for pet health incidents.
Who We Are Looking For
We need builders, not spectators. If you are excited by the challenge of shaping architecture rather than just filling tickets, this is for you.
Blockchain Engineers: Deep experience with Solidity/Rust, EVM compatibility, and NFT standards (ERC-721/1155). You know how to write secure, gas-optimized contracts.
Full-Stack Developers: Strong with Node.js/Python and modern front-end frameworks (React/Next.js). You bridge the gap between the smart contracts and the user experience.
Designers: Experience crafting UX for Web3 wallets and onboarding non-crypto natives. You make complex tech feel simple.
Why Join Now?
Fully Remote: Work from anywhere with a stable connection.
High Impact: This is not a "nice-to-have" feature. This is the core infrastructure for a new industry vertical.
Long-Term Growth: Contract-to-hire potential with significant growth as we scale.
Compensation & Commitment
Rate: $70–$120/hr (DOE – we pay for top talent).
Hours: 30+ hours per week.
Equity: Significant equity pool available for early team members who help us build the foundation.
How to Apply
Send your GitHub/Portfolio, Resume, LinkedIn Profile and a brief note on your experience with greenfield Web3 projects. Tell us what stack you would choose to build a pet passport system.
