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Protofire Web Development & Technology agency logo

Protofire

Web Development & Technology San Juan, Puerto Rico
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Protofire is one of the earliest blockchain engineering firms, building and operating production Web3 systems since 2016. It maintains Solhint, an open-source Solidity linter and security tool used by over a million developers. The firm has delivered 250+ projects for 60+ networks and 95+ protocols.

Protofire is one of the earliest blockchain engineering firms, founded in 2016 and headquartered in San Juan, Puerto Rico. The company builds and operates production Web3 systems, maintaining Solhint, an open-source Solidity linter and security tool used by over a million developers. Protofire has delivered 250+ projects for 60+ networks and 95+ protocols, securing over $2 billion in on-chain assets across 120+ networks with zero vulnerabilities.

The firm employs 50-99 people and operates with an average hourly rate of $90, with minimum project budgets available upon inquiry. Protofire's team includes co-founders, field CTOs, product managers, and specialists in blockchain infrastructure, DeFi, and security. Key leadership includes Renat Khasanshyn (Co-Founder/CEO), Andrei Yurkevich (Co-Founder), and several field CTOs with deep Web3 experience.

Protofire offers a full-stack blockchain engineering partnership covering smart contracts and security (Solidity development, protocol engineering, audits, static analysis), on-chain finance (lending, staking, stablecoins, tokenized real-world assets), cross-chain and oracle integrations (Chainlink, CCIP), data indexing (The Graph subgraphs), and production infrastructure (nodes, block explorers, Safe multisig). Additional services include cybersecurity, business consulting, mobile app development, software development, AI development, and DevOps consulting.

The agency serves clients across crypto, fintech, finance, gaming, NFT, AI, corporate services, and software/IT industries. Client types range from startups to enterprise/corporate, with particular focus on banks, fintechs, exchanges, and asset managers needing white-label on-chain products. Notable clients include Chainlink, Gnosis, Ethereum Foundation, Aave, Avalanche, The Graph, Cardano, Maker, Balancer, and CoW Protocol.

Protofire's portfolio includes projects such as a privacy wallet for Telos EVM, DIA oracle ported to Midnight, Chainlink developer tools, Gnosis Safe Multisig Wallet, Blockscout explorer for Somnia, Filecoin node infrastructure, Vana staking dApp, Swarm Markets DEX, and The Graph subgraphs. The firm has also built Solhint, a widely adopted Solidity linter, and contributed to multiple open-source developer toolkits.

Protofire has been featured in press mentions from TradingView, Yahoo Finance, Crypto News, The Block, and CryptoSlate, among others. The company's track record across multiple market cycles since 2016, combined with zero security vulnerabilities on delivered projects, positions it as a trusted partner for production-grade blockchain engineering and on-chain finance solutions.

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Services

  • Blockchain
  • Cybersecurity
  • Business Consulting
  • Mobile App Development
  • Software Development
  • AI Development
  • DevOps Consulting

Industries Served

Crypto Corporate Services AI Fintech Finance Gaming NFT Software & IT Services

Team Size

50 - 99

Pros

  • Secured over $2 billion in on-chain assets with zero vulnerabilities across delivered projects.
  • Trusted by major protocols including Aave, Balancer, Sky, and CoW Protocol.
  • Maintains Solhint, an open-source Solidity linter used by over a million developers.

Frequently Asked Questions

Protofire builds within Chainlink, Safe, The Graph, Blockscout, Filecoin, Harmony, DIA, Quai, Vana, Swarm, and Telos ecosystems.
Protofire's minimum project budget is inquire-only, and the average hourly rate is $90.
Protofire has 50-99 employees and is headquartered in San Juan, Puerto Rico.
Protofire serves startups, small businesses, medium businesses, and enterprise/corporate clients, including banks, fintechs, exchanges, and asset managers.
Protofire has secured over $2 billion in on-chain assets across 120+ networks with zero vulnerabilities across delivered projects.
Yes, Protofire offers Solidity development, protocol engineering, audits, and static analysis with its open-source tool Solhint.
Protofire builds lending and borrowing platforms, staking and yield vaults, stablecoin systems, and tokenized real-world assets using standards like ERC-4626 and ERC-3643.
Protofire is one of the earliest blockchain engineering firms, founded in 2016, with a proven track record across multiple market cycles and a focus on production-grade infrastructure and security.
Protofire runs nodes, block explorers (Blockscout), and Safe multisig and custody on cloud and bare metal for networks with heavy usage and non-EVM functionality.
Yes, Protofire builds embedded earn and yield, crypto-backed lending, own-brand vaults, tokenized treasuries, and stablecoin payment rails for banks, fintechs, exchanges, and asset managers.
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