Senior Solidity Developer
FortyTwo is a crypto application platform whose canonical domain presents 42 Agents for building blockchain applications; its documentation also describes interchain portfolio, yield, and swap tools.
Maintainer signals as of 9/2/2026
Funding history
About FortyTwo
FortyTwo's official materials describe software that simplifies blockchain use. The homepage presents AI agents for creating, hosting, and monetizing crypto applications, while the documentation describes Portfolio Tracker, Earn, and Swap products for interchain DeFi. Its earlier CosmWasm contract development was explicitly deprecated in March 2024.
Skills
About the Role
You will design, develop, test, and deploy smart contracts on Monad and other EVM-compatible blockchains. You will ensure contract security and gas efficiency through best practices and rigorous testing. You will perform code reviews and audits, optimize contracts for reliability and scalability, and collaborate with cross-functional teams to integrate contracts into broader systems. You will stay current with blockchain, decentralized AI, and web3 tooling developments.
Requirements
- 3+ years of professional experience in Solidity development.
- Proven track record of deploying and maintaining secure, gas-efficient smart contracts on Ethereum.
- Strong understanding of blockchain protocols, decentralized applications, and EVM mechanics.
- Familiarity with Hardhat, Truffle, and Foundry for smart contract development and testing.
- Experience with code audits and security practices such as reentrancy protection and handling edge cases.
- Preferred: experience with Layer-2 scaling solutions and cross-chain development.
- Preferred: familiarity with DeFi protocols and tokenomics.
- Preferred: knowledge of swarm intelligence concepts or decentralized AI systems.
Responsibilities
- Design, develop, and deploy smart contracts on Monad and other EVM-compatible blockchains.
- Ensure smart contract security and efficiency by implementing best practices and conducting rigorous testing.
- Collaborate with cross-functional teams to integrate smart contracts with the broader ecosystem.
- Perform code reviews, audits, and optimizations to ensure protocol reliability and scalability.
- Stay updated with developments in blockchain technology, decentralized AI, and web3 tools.
Benefits
- Engage in meaningful AI research involving decentralized inference, multi-agent systems, and efficient model deployment.
- Build scalable and sustainable AI systems that improve efficiency, accessibility, and cost-effectiveness.
- Collaborate with a highly technical, research-driven team working on foundational AI challenges.
- Work in an environment that values autonomy, rigorous thinking, and solving difficult problems.
