Solidity Engineer – On-Chain Data Exchange (NFT/DEX)

Smart Gate Technologies and Consulting; United States; On-site; USD 90,000 - 120,000; Full time

Job summary

A technology consulting firm in Ohio is seeking an experienced developer proficient in building Solidity contracts for production applications. The ideal candidate will have at least 3 years of experience, a deep understanding of EVM mechanics, and hands-on experience with DEXs or NFT exchanges. Proficiency in Hardhat or Foundry and experience with auditing smart contracts are also essential. Join us to innovate in the blockchain space!

Qualifications

• 3+ years of experience in building Solidity contracts for production applications.
• Deep familiarity with EVM mechanics and smart contract auditing is essential.
• Hands-on experience with DEXs or NFT exchanges required.

Skills

Solidity contracts

EVM mechanics

DEXs and NFT exchanges

Pricing mechanisms

Smart contracts auditing

Hardhat or Foundry

Git workflows

Job description

Hiring Criteria

• 3+ years of experience building Solidity contracts for production applications
• Deep familiarity with EVM mechanics: storage layout, events, proxy patterns, calldata management
• Hands-on experience with DEXs, NFT exchanges, or perp-style trading systems & Strong understanding of pricing mechanisms (e.g. oracles, TWAPs, bonding curves, auctions, etc.)
• Experience shipping audited smart contracts to mainnet (please include examples)
• Proficient with Hardhat, Foundry, or Brownie; Git-based workflows