Web3 Engineer
# Web3 Engineer **Wonnpay FZE** · Dubai · `On-site` 🕒 **Статус:** *Опубликовано: сегодня* · *Источник: Indeed* --- ### About the Role Key Responsibilities - Design, develop, and maintain blockchain and Web3 services supporting the WonnPay platform. - On and off ramp integration and VIBAN - Integrate and maintain blockchain networks such as Ethereum, Polygon, Tron/TRC-20, Solana, and other supported networks. - Build and maintain crypto deposit and withdrawal flows, including address generation, transaction monitoring, confirmations, fee handling, and reconciliation. - Work with Fireblocks and other blockchain infrastructure providers for wallet and transaction management. - Develop secure APIs and backend services for blockchain-related functionality. - Implement blockchain transaction monitoring, retry mechanisms, failure handling, and reconciliation processes. - Work with stablecoins such as USDT and USDC across multiple networks. - Support integration of additional digital assets and networks as the product expands. - Work closely with Backend, Frontend, Product, QA, Compliance, and Operations teams to deliver production-ready Web3 features. - Investigate and resolve blockchain transaction issues, including stuck, failed, delayed, or incorrectly routed transactions. - Monitor blockchain infrastructure and proactively identify reliability, performance, and security issues. - Implement appropriate security controls around private keys, signing processes, wallet operations, and transaction authorization. - Participate in architecture discussions, technical design, code reviews, testing, and production releases. - Prepare technical documentation for blockchain integrations and operational procedures. - Support incident investigation and root-cause analysis for blockchain-related production issues. Required Skills & Experience - 5+ years of professional software engineering experience, with strong hands-on experience in blockchain/Web3. - Strong understanding of blockchain fundamentals, wallets, addresses, transactions, gas/fees, confirmations, and network mechanics. - Hands-on experience with EVM-compatible networks and blockchain transaction processing. - Strong experience with TRON/TRC-20 is highly desirable. - Experience working with USDT, USDC, and other stablecoins across multiple blockchain networks. - Hands-on experience integrating crypto on-ramp and off-ramp solutions is required. - Experience with virtual bank account / Virtual IBAN setup and integration is required. - Experience integrating payment, banking, fiat-to-crypto, and crypto-to-fiat providers. - Experience building or integrating deposit, withdrawal, settlement, and reconciliation flows. - Experience with wallet infrastructure, custody platforms, or blockchain payment providers. - Experience with Fireblocks or similar institutional wallet/custody infrastructure is highly desirable. - Strong understanding of transaction signing, wallet security, private-key/MPC concepts, and blockchain security. - Experience with blockchain APIs, RPC providers, explorers, webhooks, and transaction monitoring. - Strong backend development experience using Node.js/TypeScript, Python, Go, or similar technologies. - Experience designing and consuming REST APIs and event-driven services. - Experience with databases such as PostgreSQL/MySQL and distributed systems. - Strong troubleshooting skills for failed, delayed, stuck, or incorrectly routed blockchain transactions. - Experience working with fintech, payments, crypto, exchanges, wallets, or regulated financial services is strongly preferred. Must Have - Experience with Fireblocks or similar MPC/custody platforms. - Experience with Solana/SPL tokens. - Experience integrating crypto payment providers or exchanges. - Experience with Chainalysis or other blockchain compliance/monitoring platforms. - Experience with blockchain indexing and event processing. - Experience with smart contract development using Solidity. - Experience with AWS and cloud-native infrastructure. - Experience working in fintech, payments, crypto, or regulated financial services. - Experience building high-volume transaction processing systems.
Наблюдалась 2026-10-07, впервые 2026-10-06, источник — Indeed.