About this role
Blockchain / Smart Contract Engineer (Solidity)
Senior
Full-time
Remote · Remote — Worldwide
$80k – $130k
About the role
You will build, test and secure the smart contracts powering Elexa's non-custodial escrow.
What you'll do
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Design, implement and test Solidity smart contracts
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Own the security and gas-efficiency of on-chain escrow
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Integrate contracts with backend and wallet services
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Work with auditors and lead internal security reviews
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What we're looking for
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3+ years writing production Solidity
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Deep understanding of EVM, security pitfalls and gas optimization
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Experience with Hardhat/Foundry and on-chain testing
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Familiarity with web3 libraries and wallet integrations
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Nice to have
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Audit or bug-bounty experience
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Knowledge of multiple chains and L2s
What we offer
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100% remote — work from anywhere in the world
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Flexible working hours across time zones
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Competitive salary paid in fiat or crypto
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Annual learning & conference budget
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Home-office setup allowance
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Paid time off and company-wide recharge days
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Fast-moving team with real ownership and impact