Web3 Fullstack Engineer

You will build end-to-end features across wallet-connected frontends, backend services, smart contracts, and indexing systems. You will design reliable flows for digital-item ownership, transfers, trading, redemption, and fiat-to-crypto interactions. You will model items and ownership across on-chain and off-chain systems, integrate EVM chains and marketplaces, and ensure value-moving operations are safe, auditable, idempotent, and recoverable.

Responsibilities

• Build seamless Web2-to-Web3 integration flows for accounts, payments, wallets, account abstraction, gasless transactions, and fiat on-ramps.
• Build systems for digital-item minting, ownership, transfer, trading, and redemption.
• Develop end-to-end features across frontends, backend services, smart contracts, and indexing layers.
• Design data models and APIs for items and ownership across off-chain systems, custodial wallets, and blockchains.
• Ensure value flows are reliable through idempotency, reconciliation, replay safety, and recovery paths.
• Integrate EVM chains, token standards, indexers, marketplaces, and settlement flows.
• Collaborate with product, security, payments, and game-facing teams to create technical plans and document decisions.

Requirements

• Experience integrating traditional systems with on-chain systems, including wallet onboarding, custodial and non-custodial wallets, account abstraction, and gasless transactions.
• Working knowledge of EVM chains and Solidity.
• Understanding of ERC-20, ERC-721, and ERC-1155 token standards.
• Experience synchronizing blockchain state with off-chain databases, including indexing, event ingestion, reorganization handling, and reconciliation.
• Strong TypeScript and React skills.
• Experience with wallet connectivity and web3 client libraries.
• Backend skills in Node.js and Go.
• Experience with distributed systems and value-transfer correctness.
• PostgreSQL schema design, query optimization, and migrations.
• Experience deploying, operating, and debugging services in Kubernetes.
• Experience with Kafka or NATS and event-driven messaging patterns.
• Knowledge of Git and modern CI/CD practices.
• Gaming-industry platform experience involving game items, economies, or ownership.