Blockchain Developer

JR United Kingdom; Bristol; Remote; GBP 80,000 - 100,000; Full time

Job summary

A leading clean technology organization is seeking a Blockchain Developer for a 3-month contract to develop foundational infrastructure for a carbon offset tokenization system. The role involves building a secure blockchain network on Hyperledger Besu and creating smart contracts for carbon credit management. The ideal candidate will excel in Solidity and have a strong understanding of sustainability practices. This contract offers flexible remote working and potential for further engagement.

Qualifications

• Strong experience with Solidity and Hyperledger Besu.
• Understanding of carbon markets or environmental data systems.
• Experience in developing ERC-20/1155-compatible smart contracts.

Responsibilities

• Designing and delivering a secure, permissioned blockchain network.
• Developing smart contracts for minting and retirement of tokenised carbon credits.
• Setting up a multi-node Besu network using IBFT 2.0 or QBFT consensus.

Skills

Solidity

Hyperledger Besu

Web3 tooling

Job description

Social network you want to login/join with:

TEC Partners - Technical Recruitment Specialists

Location:

bristol, United Kingdom

Job Category:

Other

-

EU work permit required:

Yes

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Job Views:

9

Posted:

04.06.2025

Expiry Date:

19.07.2025

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Job Description:

Blockchain Developer (Contract – Carbon Tokenisation Project)

Remote | 3-Month Contract | Hyperledger Besu | Sustainability Tech

I'm currently working with a forward-thinking organisation in the clean technology sector, seeking an experienced Blockchain Developer for a 3-month contract to build the foundational infrastructure of a carbon offset tokenisation system on Hyperledger Besu.

This role involves designing and delivering a secure, permissioned blockchain network and developing smart contracts for the minting, verification, and retirement of tokenised carbon credits. You’ll take the lead from network configuration through to testnet deployment and audit readiness, collaborating with a small, agile team committed to sustainability and decentralised innovation.

Key responsibilities include:

• Developing ERC-20/1155-compatible smart contracts with embedded metadata (e.g., project ID, vintage year, verification body).
• Setting up a multi-node Besu network using IBFT 2.0 or QBFT consensus.
• Building minting and retirement APIs integrated with off-chain MRV (Measurement, Reporting & Verification) data.
• Delivering end-to-end functionality alongside comprehensive, audit-ready documentation.

The ideal candidate will have solid experience with Solidity, Hyperledger Besu, and Web3 tooling, as well as a good understanding of carbon markets or environmental data systems.

This contract offers the chance to work on a high-impact sustainability project, with flexible remote working and the potential for extension or a leadership role in future phases.