[Remote] Backend Blockchain

**JOB DUTIES** - Infrastructure Management: Design and maintain the platform's blockchain infrastructure, including high-availability EVM (Polygon, Arbitrum, Base) and Solana RPC endpoints and nodes. - Middleware Development: Build robust middleware services in TypeScript or Node.js to bridge our MongoDB/PostgreSQL backend with various blockchain networks for seamless data synchronization. - Data Indexing: Develop and manage Subgraphs (via The Graph) or custom indexers to ensure real-time tracking of NFT mints (Mons), marketplace transfers, and staking reward distributions. - Cross-Chain Integration: Implement and optimize cross-chain functionality and data oracles (e.g., Chainlink VRF) to support multi-network compatibility for assets and fair-play mechanics. - Layer 2 Strategy: Evaluate and integrate Layer 2 solutions to minimize transaction costs for users while maintaining high throughput for the Battle Arena and Marketplace. - Performance Monitoring: Monitor blockchain uptime and transaction latency across multiple environments, ensuring 24/7 reliability for the game's live dashboards and stats. - Security & Standards: Enforce best practices for blockchain data handling, storage (IPFS), and secure interaction with decentralized protocols. **JOB REQUIREMENTS** - **Experience** : 3+ years in software engineering with a heavy focus on blockchain infrastructure and multi-chain data pipelines. - **EVM Mastery** : Strong experience with EVM-compatible networks (Ethereum, Polygon, Arbitrum) and their underlying node architecture. - **Tooling Proficiency** : High proficiency in **Node.js, TypeScript, Ethers.js** , and **Web3.js** . - **On-Chain Depth** : Hands-on experience with **RPC management** , **IPFS** for decentralized metadata storage, and indexing frameworks like **The Graph** . - **Infrastructure Mastery** : Familiarity with **Docker, Kubernetes** , and automated **CI/CD pipelines** (GitHub Actions) for blockchain-connected services. - **Communication** : Ability to design and document complex technical architectures for a remote, global engineering team **Preferred Skills** - **Non-EVM Knowledge** : Specific experience with **Solana (Rust/Anchor)** data structures and indexing. - **Oracle Orchestration** : Deep knowledge of **Chainlink (VRF, Price Feeds)** and other decentralized oracle protocols. - **Web3 Analytics** : Exposure to block explorer APIs and custom transaction monitoring tools for auditing game economy health.