Senior Solidity Developer : Altoros

Protofire is a passionate contributor to open-source blockchain communities, helping startups and decentralized applications grow through protocol engineering, smart contract development, trusted data feeds (oracles), and powerful developer tools (SDKs/APIs). Since 2016, we’ve collaborated with top blockchain projects and operate as a major indexer node on the Graph Network, among other roles supporting decentralized infrastructure.

We’re Hiring: Senior Solidity Developer

We’re building a multi-disciplinary team to scale Protofire and are looking for a Senior Solidity Developer skilled in writing, testing, deploying, and optimizing smart contracts. This role requires a strong knowledge of Solidity, the latest developer tools, best practices, and current vulnerabilities in the Ethereum ecosystem.

Your Role & Impact

• Develop high-quality, efficient, and secure Solidity code
• Work on advanced smart contracts and innovative DeFi features
• Conduct technical due diligence on blockchain protocols
• Collaborate with the product team to build DeFi applications
• Design, test, and launch new functionalities

Qualifications

• 5+ years in software development; 2+ years in Solidity
• Proficient with Ethereum SDKs (web3.js, ethers.js) and Dapp deployment
• Knowledge of smart contract dev tools (hardhat, truffle), CI/CD, audits, and stablecoins
• Strong understanding of EVM and decentralized finance
• Proactive problem solver, communicator, and team player