Senior Blockchain Developer

Hiring : Senior Backend + Smart Contract Developer (Web3)We’re looking for a highly experienced Backend + Smart Contract Developer with a strong grasp of blockchain architecture and mid-level AWS expertise to join our innovative Web3 team. This is your chance to design and build cutting-edge decentralized systems that scale globally.Key Responsibilities- Smart Contract Development : - Architect, develop, and deploy secure smart contracts (Solidity / Rust) for Ethereum, EVM-compatible chains, and other L1 / L2 networks.- Conduct in-depth testing, auditing, and gas optimization.- Backend Engineering & Blockchain Architecture : - Design high-performance backend systems and scalable blockchain architectures.- Build and maintain APIs, node integrations, and indexing services (e.g., The Graph, Alchemy, Infura).- Cloud & Infrastructure (AWS) : - Deploy and manage backend services using AWS (EC2, Lambda, API Gateway, S3, RDS) and cloud best practices.- Implement CI / CD pipelines, containerization (Docker, Kubernetes), and monitoring solutions.- Security & Optimization : - Ensure system security, resilience, and gas optimization.- Apply best practices for mitigating vulnerabilities (reentrancy, overflow, etc.).- Collaboration & Ownership : - Work closely with frontend, DevOps, and product teams to deliver robust end-to-end blockchain products.- Take complete ownership from architecture to deployment.Must-have Qualifications- 4+ years in backend development and 2+ years in smart contract development.- Deep understanding of Ethereum, EVM architecture, L2 scaling solutions, and DeFi / NFT standards (ERC20, ERC721, ERC1155).- Proficiency in Solidity, JavaScript / TypeScript, Node.js, and at least one systems language (Go, Rust, or C++).- Strong experience in blockchain solution architecture for scalable dApps.- Mid-level experience with AWS (EC2, Lambda, API Gateway, S3, RDS).- Familiarity with common smart contract vulnerabilities and mitigation strategies.- Proven ability to deliver secure, scalable, production-ready blockchain systems.Preferred Qualifications- Experience with Hardhat, Foundry, Truffle, Web3.js / Ethers.js.- AWS DevOps experience for blockchain-based apps, including CI / CD pipelines and container orchestration.- Cross-chain development and interoperability protocol expertise.- Knowledge of zero-knowledge proofs (ZK-SNARKs / STARKs).- Experience with audited DeFi protocols.- Familiarity with L2 rollups, bridges, and advanced blockchain scaling techniques.- Exposure to NFTs, DeFi mechanics, and modern blockchain infrastructure.Location : Remote / Hybrid (India preferred)Type : Full-time