Blockchain Architect

We're helping Limitless Labs (a crypto + AI lab building a large-scale prediction market) to find a Blockchain Architect to own the onchain layer end-to-end.

The product — limitless.exchange — is already one of the largest on Base:

• $3B+ trading volume
• 40% 7-day retention
• 5.5h average weekly engagement

This is not a “theoretical Web3” project — it’s a live system where real value moves daily.

The role

This is not just about writing smart contracts — it’s about designing systems where:

• value moves safely
• transactions settle correctly
• edge cases don’t break production

You’ll work across:

• smart contracts (Solidity, EVM)
• deployment & upgrade flows
• transaction & settlement logic
• wallet architecture (multisigs, treasury, approvals)
• oracle & protocol integrations

What makes this role different

• High-stakes systems — mistakes are expensive
• Real product with real usage (not just testnets)
• Strong technical team (ex-Reface, backed by top-tier VCs)
• Combination of architecture + hands-on engineering

Requirements

• 8+ years in software engineering
• 5+ years in blockchain / smart contracts
• Strong Solidity + EVM experience
• Experience deploying contracts to mainnet with TVL
• Strong understanding of:
  • onchain architecture
  • protocol integrations
  • transaction flows & failure modes
• Security mindset and attention to detail

Nice to have

• Foundry / Hardhat
• DeFi / trading systems
• Oracles & data integrations
• Solana / Rust
• Backend systems interacting with blockchain

Why join

• $10M seed round (1confirmation, DCG, Coinbase Ventures, etc.)
• Product-market fit signals already present
• High ownership, high impact role
• Remote, flexible