Senior Fullstack Engineer
Core
Building cross-game infrastructure for digital asset trading and Web3 wallet operations across the entire stack.
Role type
Senior Fullstack Engineer (Web3/Blockchain)
Builds
Xsolla Bazaar (NFT marketplace), Web3 Backpack (Smart wallet), Web3 SDKs, Admin Panels
Domain
Video Game Industry + Web3/Blockchain
Required skills
Go, TypeScript, React, Next.js, React Native, MongoDB, PostgreSQL, Redis, REST, WebSocket, gRPC, NATS, RabbitMQ, Kafka, ZK Stack (ZKsync Era), Account Abstraction (ERC-4337), ethers.js, viem, wagmi, WalletConnect, Docker, Kubernetes, GitLab CI/CD, Prometheus, Graylog
Preferred skills
None stated
Technologies
go-ethereum, ethkit, abigen, EraVM, EIP-1193, EIP-6963, EIP-5792, EIP-712, ERC-1271, ERC-4337, ERC-7710, ERC-7715, Tailwind CSS, Tamagui, Zustand, RTK, Sequence, thirdweb, Privy, Dynamic
Responsibilities
Develop backend services in Go for wallet operations and blockchain interactions; Implement and monitor ERC-4337 UserOperation lifecycle; Implement smart contract interaction layer with abigen-generated Go bindings; Build Account Abstraction support (paymaster gas-sponsorship, session-key issuance); Design BFF services orchestrating data from multiple blockchain sources; Build responsive applications using React/Next.js integrated with embedded/AA wallets.
Seniority
Senior, hands-on IC