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:
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GraphTally a trust-minimized micropayment system for decentralized service providers.
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Allocation Optimizer: an Agent for dynamic stake distribution across subgraphs in The Graph.
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Dynamic Pricing Algorithm: Adaptive online query pricing for Indexers.
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Holographic Homomorphic Signature Scheme (H2S2): Cryptographic primitive aggregating signatures for efficient verification.
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State-Channel Micropayments (via GraphTally): Off-chain payments minimizing on-chain cost for low-value transfers.
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AutoAgora: AI-powered tool for query pricing and negotiation in The Graph.
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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
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Design, implement, and deploy secure EVM smart contracts (Solidity).
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Build logic for identity, on-chain agreements, micropayments, and DeFi primitives.
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Conduct audits and optimizations for gas efficiency and security.
Backend Services
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Develop APIs and services integrating smart contracts with off-chain components (Node.js, Go, Python).
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Support products such as GraphTally and Allocation Optimizer with backend logic.
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Implement scalable infrastructure for micropayments, pricing, and staking optimization.
Frontend / Dashboards
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Build UIs for data visualization and interaction, including dashboards for:
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Micropayment activity
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Data providers and indexers (The Graph)
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Delegation and staking optimization
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Liquidation status tracking
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Use React or similar frameworks to create intuitive, data-rich user interfaces.
Integration & Collaboration
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Bridge contract logic with backend services and UI.
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Work with cryptographers, AI researchers, and protocol engineers to integrate cutting-edge tools.
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Contribute across Semiotic’s full suite of products.
Quality & Deployment
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Write tests (unit, integration, end-to-end) across contract, backend, and frontend layers.
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Maintain CI/CD pipelines for EVM deployments across testnets and mainnet.
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Follow best practices in Web3 security and code quality.
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Strong experience designing and deploying Solidity contracts.
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3+ years backend development (Node.js, Go, or Python).
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Experience with React or other frontend frameworks for dashboards.
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Knowledge of EVM internals, gas optimization, and DeFi building blocks.
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Understanding of staking, delegation, indexers, and liquidation mechanics.
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Strong debugging, testing, and collaborative skills.
Nice-to-Have
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Familiarity with on-chain reputation, identity frameworks, or agreement systems.
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Contributions to open-source Web3 projects.
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Understanding of cryptographic tools like H2S2, zk-SNARKs, or state-channel micropayments.
