Remote Blockchain Engineer: Solidity, DeFi & dApps

MastarRec; Greater London; On-site; GBP 80,000 - 130,000; Full time

Benefits offered by this job

Crypto incentives

Equity incentives

Remote-first environment

Global blockchain events access

Training access

Job summary

MastarRec is seeking an experienced Blockchain Specialist to design, develop, and implement blockchain-based solutions including smart contracts, tokens, and DeFi integrations. You will work on Ethereal and other compatible blockchains, focusing on security and scalability.

The role involves building dApps, wallets, and token exchanges, with strong emphasis on Solidity and distributed ledger technologies. A remote-first working environment is offered, with opportunities across FinTech, digital

Qualifications

• Proficient in Solidity and Ethereum-based development.
• Experience with blockchain frameworks like Truffle, Hardhat, or Brownie.
• Solid understanding of cryptographic principles and decentralised networks.
• Familiarity with Web3.js, Ethers.js, and node infrastructure.
• Hands-on experience building DeFi, NFT, or DAO applications.
• Version control experience (Git/GitHub).

Responsibilities

• Design and develop smart contracts using Solidity on Ethereal and compatible blockchains.
• Create and deploy dApps, including wallets, token exchanges, and DeFi protocols.
• Integrate blockchain tech with existing platforms and APIs.
• Conduct code reviews and perform security audits on smart contracts.
• Stay current with Web3 developments and governance mechanisms.
• Collaborate with product teams, designers, and DevOps to deliver scalable solutions.
• Write technical documentation for architecture and deployment practices.

Skills

Solidity

Ethereum dev

Web3.js

Ethers.js

Truffle/Hardhat/Brownie

Cryptographic principles

Decentralised networks

Consensus algorithms

Git

Tools

Truffle

Hardhat

Brownie

Job description

MastarRec is seeking an experienced Blockchain Specialist to design, develop, and implement blockchain-based solutions including smart contracts, tokens, and DeFi integrations. You will work on Ethereal and other compatible blockchains, focusing on security and scalability.

The role involves building dApps, wallets, and token exchanges, with strong emphasis on Solidity and distributed ledger technologies. A remote-first working environment is offered, with opportunities across FinTech, digital