Blockchain Developer (Web3 / dApps)

JR United Kingdom; Doncaster; Remote; GBP 55,000 - 85,000; Full time

Job summary

A leading client in the IT space is seeking a Blockchain Developer to build decentralized applications as part of a remote team. With a focus on developing Web3 infrastructure and smart contracts, this 3-month rolling contract offers great flexibility and potential for extension. The ideal candidate will have substantial blockchain development experience and a proven ability to optimize smart contracts for security and performance.

Benefits

Fully remote position

3-month rolling contract with extension potential

Qualifications

• 3+ years of hands-on experience in blockchain development.
• Proven track record with Solidity and Ethereum-based contracts.
• Familiarity with decentralised user flows and security best practices.

Responsibilities

• Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms.
• Integrate Web3 libraries with frontend dApps.
• Collaborate with UX designers for seamless user interactions.

Skills

Blockchain development

Solidity

EVM-compatible contracts

Web3.js

Ethers.js

User interface collaboration

Smart contract optimization

Tools

MetaMask

WalletConnect

The Graph

IPFS

Filecoin

Job description

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Blockchain Developer (Web3 / dApps), doncaster

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Client:

V7 Recruitment

Location:

doncaster, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

5

Posted:

31.05.2025

Expiry Date:

15.07.2025

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Job Description:

Blockchain Developer (Web3 / dApps)

V7 is supporting a leading client in the IT space who is seeking a Blockchain Developer with deep expertise in building secure, user-focused decentralised applications. This is a fully remote, 3-month rolling contract (outside IR35) focused on developing Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams.

Key Responsibilities:

• Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible)
• Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers
• Collaborate with UX designers to ensure seamless and intuitive interactions between smart contracts and user interfaces
• Optimize smart contracts for security, performance, and low gas usage
• Maintain clear documentation and participate in audits and peer reviews

Key Requirements:

• 3+ years of hands-on experience in blockchain development
• Proven track record with Solidity, Ethereum-based contracts, and dApp development
• Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.)
• Understanding of decentralised user flows and Web3 security best practices
• Experience working in cross-functional teams, especially alongside UX designers and frontend developers
• Bonus: Knowledge of Layer 2 solutions, The Graph, or decentralised storage (IPFS/Filecoin)

What’s on Offer:

• Fully remote position
• 3-month rolling contract (strong extension potential)