Contract Back-End Engineer

3 days ago

Bangalore, India Superlend Full time

About Superlend At Superlend , we’re building next-generation DeFi infrastructure and applications, enabling seamless access to yield, lending, and cross-chain opportunity aggregation. We’re a small, fast-moving, engineering-heavy team obsessed with designing robust, composable financial primitives that power the future of on-chain lending. If you’re curious, creative, and want to build real DeFi products with real users, come join us. The Role: We’re looking for a Smart Contract + Backend Engineer who will design, build, and maintain core DeFi protocols and the supporting backend services. You will work closely with our product, protocol, and data teams to deliver scalable and secure on-chain and off-chain components, as well as ensure reliable data indexing and APIs for front-end applications and analytics. What You’ll Do Smart Contract Development: Write thorough unit, integration, and fuzz tests to ensure contract security and reliability. Backend Engineering: Build and maintain services that interact with blockchain networks and DeFi protocols. Develop APIs and backend logic for data aggregation, market analytics, and user-facing features. Work with caching layers, queues, and databases (PostgreSQL, DynamoDB, Redis, etc.) to optimize performance. Data Indexing & Subgraphs: Ensure data pipelines are robust, efficient, and scalable. Maintain high data accuracy for protocol metrics such as TVL, APY, LTV, and user positions. Collaboration & Code Quality: Work closely with front-end and protocol teams to ensure seamless integration of on-chain and off-chain components. Follow best practices in software design, testing, documentation, and security. Experience : 2–4 years of experience in software development with at least 1–2 years in DeFi-related roles. gas optimization, and security best practices. Backend Development : Proficiency in Node.js (NestJS preferred), Rust, or Go. Strong understanding of financial math used in DeFi protocols, including interest rate models and bonding curves, AMM mathematics, slippage checks, liquidity simulations, and price impact calculations. Indexing & Data Pipelines : Hands-on experience with The Graph, custom indexers, and integrating blockchain data into backend services. Database & Infra : Experience with relational and NoSQL databases, caching layers, and message queues. Experience designing REST/GraphQL APIs that serve real-time protocol and market data. Security & Testing : Understanding of smart contract vulnerabilities and mitigation strategies. xyz with the subject “Smart Contract Dev – ” and include your resume, GitHub, or links to past work. If you’ve shipped products, audited contracts, or built something cool onchain, we’d love to see it.

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