Hire blockchain developers who treat smart contracts like money

A smart contract bug cannot be patched quietly; it can drain funds in minutes. Cubehire blockchain developers write Solidity with tests, audit friendly patterns and gas awareness, and build the Web3 frontends and wallet flows that connect everyday users to it.

Hire Blockchain Developers How we vet them
The work

What our Blockchain Developers build

Typical projects companies bring a blockchain developer in for.

1

Smart contracts

Tokens, NFTs, staking and payment contracts with thorough tests before deployment.

2

Web3 frontends

dApps with wallet connection, transaction states and clear error messages.

3

Payments and stablecoins

Stablecoin payment and payout flows integrated into existing products.

4

Indexers and backends

Services that read chain events and keep an app database in sync.

Skills

Skills we test every blockchain developer on

  • Solidity
  • Hardhat or Foundry
  • OpenZeppelin
  • Ethereum and EVM chains
  • ethers.js or viem
  • wagmi and WalletConnect
  • Smart contract testing
  • Gas optimization
  • Security patterns
  • The Graph
  • Rust for Solana
  • Node.js
Vetting

How we vet Blockchain Developers

Every blockchain developer sits the Cubehire AI interview: multiple choice fundamentals, a timed written and coding round, and a recorded video round. A person on our team then reviews the profile before any company sees it. For this role, the interview checks that they can:

  1. Check 1

    Finds a reentrancy or access control flaw in a Solidity snippet and explains the fix.

  2. Check 2

    Writes and tests a small contract function in a timed task.

  3. Check 3

    Explains upgradeable contracts and the risks they introduce.

Available now

Vetted Blockchain Developers in the network

Each profile carries a scored AI interview and a human review.

See the whole network

Tell us about your blockchain developer role

New profiles are approved every week. Describe the role and we will send matched, interview scored Blockchain Developers within 48 hours.

Describe the role
How it works

Hire in 4 easy steps

From the first conversation to a signed engineer, without the six-week search in between.

01
Define
Tell us what you need

Describe the role, the stack and the work. No job spec required, a conversation is enough.

02
Discover
Meet the top engineers

Three to five matched engineers within 48 hours, each with their AI interview score attached.

03
Evaluate
Interview with ease

Pick who you want to meet and we handle the scheduling on both sides.

04
Onboard
Hire with confidence

Contracts, USD payroll and compliance handled. You get an engineer, not an admin project.

Terms

Simple terms for US companies

Shortlist in 48 hours

Three to five interview scored profiles that match your stack, delivered within two days.

Hours that overlap yours

A shifted working day agreed during hiring, with daily overlap with Eastern or Pacific time.

Contracts and payroll handled

We carry the paperwork and pay the developer in USD, so you are not opening an entity abroad.

Replacement guarantee

If the fit is not right, we replace the developer at no extra cost within the guarantee period.

Hiring Blockchain Developers

Questions about hiring Blockchain Developers

What companies ask before they hire a blockchain developer through Cubehire.

Talk to our team
They write tested, security conscious code and review each other's work, but for contracts holding real value we recommend an independent audit firm before launch.
Mostly Ethereum and EVM compatible chains such as Polygon, Base and Arbitrum, plus Solana for Rust based work.
Yes. Stablecoin payments, wallet connections and on chain payouts can be added to web and mobile apps.
Yes. Most build React or Next.js dApps with wagmi and viem alongside the contracts.
A flat rate quoted before you interview anyone: a one time fee for full time placements, or a fixed monthly rate for contract work. There is no percentage of salary. See the pricing page for current rates.

Still have a question about Cubehire?

Ask about vetting, pricing, contracts or how the AI interview works. Cubie, our assistant, answers straight away and raises a ticket for the team when it cannot.

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Ready to hire a blockchain developer?

Tell us the stack and the work. You get matched, interview scored Blockchain Developers within 48 hours.

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