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описание
Xsolla provides commerce tools and services that help video game developers fund, distribute, market, and monetize their games. Xsolla ZK is building cross-game infrastructure that enables gamers to trade and use digital assets across games.
задачи
Develop backend services in Go using ethkit and go-ethereum for Ethereum interactions and RPC integration
Integrate with ZK Stack infrastructure, including EraVM, system contracts, and L1↔L2 messaging
Build and maintain wallet backend indexing integrations for real-time token balance tracking and webhooks
Design and implement APIs for NFT marketplace and orderbook services, including on-chain order matching and settlement flows
Implement the smart contract interaction layer using abigen-generated Go bindings for ERC-20/721/1155 tokens
Build Account Abstraction (ERC-4337) backend support, including UserOperation submission and monitoring, paymaster gas-sponsorship logic, and session-key issuance and revocation
Develop blockchain event scanners with reorg handling for Ethereum, Polygon, and Xsolla ZK chains
Implement BFF services that orchestrate complex multi-chain operations
Design caching and indexing strategies for on-chain data using Redis and MongoDB
Write comprehensive tests, including integration tests with a local ZKsync test environment
Document APIs using OpenAPI/Swagger
Monitor and troubleshoot production systems and handle blockchain-specific edge cases, including stuck transactions and gas estimation
требования
2+ Years of commercial experience with Go
Strong understanding of MongoDB and PostgreSQL, including query optimization and indexing
Experience with Redis for caching and session management
Knowledge of message queues such as NATS or RabbitMQ
Experience designing and implementing REST APIs with OpenAPI/Swagger
Understanding of microservices architecture patterns
Experience with Docker and container orchestration basics
Proficiency with Git and GitLab CI/CD
Solid understanding of distributed systems concepts
Будет плюсом: Ethereum/EVM blockchain integration, go-ethereum and RPC nodes, smart contract interaction via ABI bindings, transaction lifecycle and gas estimation, ZK Stack/ZKsync Era, EraVM, system contracts, L1↔L2 communication, bridging, finality and reorg behavior, ERC-4337 Account Abstraction, bundlers and paymasters, session keys and delegated permissions, EIP-712, ERC-1271, WebAuthn/passkey, AA infrastructure providers, token standards ERC-20/ERC-721/ERC-1155, blockchain event processing, DeFi, NFT marketplace mechanics, Kubernetes
условия
Medical, dental, and vision benefits
PTO
Personalized career roadmap
Training and educational opportunities
Flexible schedule: 10:00–19:00
Employment agreement; entity or EOR arranged per candidate location
Глобальная технологическая компания предоставляет комплексные платежные и маркетинговые решения для разработчиков и издателей видеоигр, помогая монетизировать и продвигать проекты по всему миру
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