Blockchain Developer (Web3 / dApps)

JR United Kingdom; Southampton; Remote; GBP 50,000 - 75,000; Full time

Job summary

A leading IT client seeks a Blockchain Developer (Web3 / dApps) with deep expertise in smart contract development. This fully remote, 3-month contract offers opportunities to work on decentralized applications and collaborate with interdisciplinary teams. Ideal candidates will have at least three years of experience in blockchain development and skills in Solidity and Ethereum.

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 wallet integration patterns.

Responsibilities

• Develop and deploy smart contracts for DeFi and NFTs.
• Integrate Web3 libraries with frontend dApps.
• Collaborate with UX designers on user interactions.

Skills

Solidity

Ethereum

dApp Development

Web3 Security

Cross-Functional Collaboration

Tools

Web3.js

Ethers.js

MetaMask

WalletConnect

IPFS

Job description

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Blockchain Developer (Web3 / dApps), southampton

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Client:

V7 Recruitment

Location:

southampton, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

7

Posted:

09.06.2025

Expiry Date:

24.07.2025

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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)