We’re building a web app where creators publish unique “time‑travel” itineraries and notarize them on-chain for permanent, tamper‑evident records.

Your mission: design and ship the smart‑contract layer, wallet flows, and a small indexing/relay service that plays nicely with a Laravel backend.

We will only accept applications sent through this link: ****

• 3+ years total backend experience with 1+ year shipping Solidity smart contracts to testnet/mainnet.
• Proficiency with Hardhat or Foundry, ethers.js, and at least one L2 (Base, Arbitrum, Optimism, Polygon PoS/zkEVM).
• Experience integrating IPFS (and content addressing/CIDs) in production or serious prototypes.
• Fluency in **** for tooling, scripts, and event indexers.
• Comfortable reading/writing REST endpoints and auth flows; Laravel/PHP familiarity is a plus.
• Strong testing discipline; familiarity with gas profiling and event‑driven architectures.