Web3 Fullstack Engineer

1 мес. назад

SerbiaEuropeRemote

smart contractsbackendfrontend

Build seamless web2 and web3 integration for game developers and players allowing interaction with digital items across platforms.

About is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with to help them fund, distribute, market, and monetize their games. Grounded in the belief in the future of video games, is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world. With more paths to profits and ways to win, developers have all the things needed to enjoy the game. For more information, visit

Build Seamless Web2 ↔ Web3 Integration  — Design and ship the flows that let users move between traditional accounts/payments and on-chain wallets without friction: custodial and non-custodial wallets, account abstraction, gasless transactions, and fiat on-ramps. Own the Digital Item Lifecycle  — Build the systems behind item mint, ownership, transfer, trading, and redemption — keeping on-chain state and off-chain records consistent, auditable, and fast. Develop Fullstack Features  — Deliver end to end across wallet-connected frontends, backend services, and the smart contract / indexing layer that powers item ownership and turnover. Model Items & Ownership  — Design data models and APIs that represent items uniformly whether they live off-chain, in a custodial wall

Web3 & Digital Assets Web2 ↔ Web3 Integration  — Hands-on experience bridging traditional systems with on-chain ones: wallet onboarding, custodial vs. non-custodial trade-offs, account abstraction, gasless/relayed transactions. EVM & Smart Contracts  — Working knowledge of EVM chains and Solidity, including reading, integrating with, and reasoning about the safety of contracts. Token & Item Standards  — Practical understanding of ERC-20, ERC-721, and ERC-1155, and how they map to real game items, ownership, and transfers. On-chain / Off-chain Sync  — Experience keeping blockchain state consistent with off-chain databases: indexing, event ingestion, reorg handling, and reconciliation. Frontend Engineering TypeScript & React  — Strong TypeScript and R

Experience building NFT marketplaces, item trading, or secondary-market / settlement systems
Familiarity with blockchain indexing tooling (The Graph, custom indexers) and node/RPC infrastructure
Experience with account abstraction (ERC-4337), smart wallets, or paymaster/relayer setups
Background in payments or fiat on-ramp integration bridging traditional commerce and crypto
Experience with non-EVM ecosystems (Solana, etc.) or cross-chain / bridging patterns
Familiarity with security and compliance relevant to digital assets: custody, key management, audit logging, KYC/AML touchpoints
Contributions to open-source web3, wallet, or tooling projects
Hands-on, up-to-date experience with modern AI tools (e.g. Claude, Copilot, Cursor) for code generation, review, and accelerating day-to-day engineering work

operates across multiple time zones, and the systems you build sit directly in the path of real value moving between users, games, and chains. Strong written communication is essential — your designs and decisions need to stand on their own and be actionable without you in the room. We value directness, technical depth, and follow-through. If a design or production issue has real security, correctness, or reliability implications — especially anything touching item ownership or the movement of value — we expect you to say so clearly, defend your position with evidence, and stay engaged until it’s resolved.