CoinListHiring

Senior Smart Contract Engineer

  • Remote, United States
  • Senior
  • Posted 2 days ago
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In one line

Senior Solidity engineer on a small team, writing contracts that connect users to tokenized real-world assets and shipping them to mainnet.

About the role

Greenfield work in a small engineering group reporting to the CTO, where contracts hold user funds and get reviewed by outside auditors.

At a glance

Pay
Not stated in the posting
Remote scope
Remote, United States
Seniority
Senior
Skills
Solidity, EVM, Foundry, Hardhat, Rust, Solana
Posted
27 Oct 2026
Last checked
29 Oct 2026

What you will do

  • Write Solidity contracts for EVM chains, get them audited, deploy to mainnet and keep them safe.
  • Design whole contract systems: boundaries, interfaces, storage layout, upgrade paths, access control, emergency exits.
  • Own meaningful work such as the contracts behind a token sale or onchain work on a new product.
  • Treat security as core: review colleagues' contracts, fuzz and invariant test, rehearse on testnets, handle incidents.

What they look for

  • Seven or more years of professional experience, with at least two writing Solidity that reached production.
  • Deep EVM knowledge: storage packing, gas, memory versus calldata, ABI encoding, events, contract size limits.
  • Discipline with Foundry or Hardhat, fork tests, fuzzing and invariants.

How Keywordise applies for you

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ClaudeConnectorChatGPTConnectorMuseby Meta

Claude

  1. In Claude, open Settings, then Connectors, and choose Add custom connector.
  2. Name it Keywordise and paste the connector URL.
  3. Click Connect, log in to Keywordise and approve. Then send the prompt in a new chat.
Connector URL
https://keywordise.com/mcp

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ChatGPT

  1. In ChatGPT, open Settings, then Connectors. On plans that need it, turn on developer mode first.
  2. Add a new connector with the connector URL and choose OAuth. Leave the client ID and secret empty.
  3. Log in to Keywordise and approve. Then send the prompt in a new chat.
Connector URL
https://keywordise.com/mcp

Disconnect any time in your Keywordise settings.

Muse

  1. Open Muse (muse.ai or the app) and send it the message below.
  2. If Muse asks how to sign in, answer OAuth. Open the sign-in link it sends, log in to Keywordise and approve.
  3. Send the prompt. Muse asks before it sends anything.
Message for Muse
Add a custom connector called Keywordise. It is a remote MCP server at https://keywordise.com/mcp and uses OAuth. Give me the sign-in link.

Muse is available in the US only for now.

Prompt
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How to connect

Questions about this job

Can I do this job remotely, and from which countries?

Yes, it is listed as remote, aimed at candidates in the United States.

What does this job pay?

The posting does not state a salary, so there is no figure to quote.

What experience is needed?

It is a senior role. The posting asks for: seven or more years of professional experience, with at least two writing Solidity that reached production; deep EVM knowledge: storage packing, gas, memory versus calldata, ABI encoding, events, contract size limits; discipline with Foundry or Hardhat, fork tests, fuzzing and invariants. Skills it names include Solidity, EVM, Foundry, Hardhat.

How do I apply with Keywordise AI?

Select Apply with Keywordise AI, sign up and upload your CV. Keywordise writes a CV and a cover letter for this job from your real experience and applies for you. The 7-day free trial needs no card.

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