Ensure low-cost and secure transfers (especially on Tron).

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Описание

🚨Developer wanted: Senior blockchain Engineer - MultiChain USDT/USDC Payment System Job description: We are building a platform and the frontend is already developed in Flutter (Replit). We need an experienced blockchain engineer to create a secure and reliable payment system for deposits of USDT and USDC on Ethereum (ERC-20) and Tron (TRC-20) networks, with possible expansion to other chains later. Key Responsibilities: - Develop and deploy smart contracts for receiving USDT and USDC on Ethereum (EVM) and Tron networks. - Implement reliable on-chain deposit detection, confirmation logic, and event emission. - Build a backend/API to integrate with the web platform/app (real-time balance updates, transaction history, QR code/address generation). - Ensure low-cost and secure transfers (especially on Tron). Write clean, secure, and well-tested code. Mandatory Requirements: - 4+ years of professional experience in blockchain development; - Strong experience with Solidity and EVM deployments on Ethereum mainnet; - Proven experience with Tron blockchain (TRC-20 tokens, TronWeb/TronJS, deployment on Tron mainnet). - Hands-on experience with USDT and USDC on both Ethereum and Tron networks; - Experience building payment flows (deposit detection, confirmation, event listening). - Ability to integrate backend with app (REST API + WebSocket or polling). Nice-to-have: - Knowledge of security best practices and common vulnerabilities. - Experience with other chains (Base, Arbitrum, Solana, etc.). - Backend development (Node.js or Python + Web3 libraries). Contract Type: - Freelance / Contract-to-hire (remote, international). - We prefer someone available for 20–40 hours/week initially.

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