About this role
About Semiotic Labs Semiotic Labs builds advanced Web3 infrastructure, autonomous agents, and cryptoeconomic protocols that power decentralized finance and data economies. As a core developer team for The Graph, Semiotic Labs is pioneering trustless, efficient, and scalable financial primitives. Our suite of products includes: GraphTally a trust-minimized micropayment system for decentralized service providers. Allocation Optimizer: an Agent for dynamic stake distribution across subgraphs in The Graph. Dynamic Pricing Algorithm: Adaptive online query pricing for Indexers. Holographic Homomorphic Signature Scheme (H2S2): Cryptographic primitive aggregating signatures for efficient verification. State-Channel Micropayments (via GraphTally): Off-chain payments minimizing on-chain cost for low-value transfers. AutoAgora: AI-powered tool for query pricing and negotiation in The Graph. RL & Neural-Network Cost Prediction / zk-SNARK Enhancements AI-driven pricing, verifiable queries, and privacy-preserving proof mechanisms. Role Overview We’re seeking a Smart Contract Engineer (EVM-focused) to work across Semiotic Labs’ product suite. You will design and implement smart contracts, build scalable backend services, and develop data-driven dashboards. The work will touch on areas such as on-chain identity, agreements, micropayments, and DeFi logic, while integrating with advanced indexing and delegation mechanics within The Graph ecosystem. As part of our team, you’ll juggle with: Smart Contracts Design, implement, and deploy secure EVM smart contracts (Solidity). Build logic for identity, on-chain agreements, micropayments, and DeFi primitives. Conduct audits and optimizations for gas efficiency and security. Backend Services Develop APIs and services integrating smart contracts with off-chain components (Node.js, Go, Python). Support products such as GraphTally and Allocation Optimizer with backend logic. Implement scalable infrastructure for micropayments, pricing, and staking optimization. Frontend / Dashboards Build UIs for data visualization and interaction, including dashboards for: Micropayment activity Data providers and indexers (The Graph) Delegation and staking optimization Liquidation status tracking Use React or similar frameworks to create intuitive, data-rich user interfaces. Integration & Collaboration Bridge contract logic with backend services and UI. Work with cryptographers, AI researchers, and protocol engineers to integrate cutting-edge tools. Contribute across Semiotic’s full suite of products. Quality & Deployment Write tests (unit, integration, end-to-end) across contract, backend, and frontend layers. Maintain CI/CD pipelines for EVM deployments across testnets and mainnet. Follow best practices in Web3 security and code quality.