Mid-Level Blockchain Engineer

Mid-Level Blockchain Engineer (Java, Public Blockchain, Wallets) London

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Up to GBP140,000 + 20% Bonus Join a

market-leading crypto custodian

at the forefront of

institutional blockchain adoption . We're looking for a

Mid-Level Blockchain Engineer

to develop high-performance crypto custody and blockchain solutions. Your Role

Build and maintain scalable blockchain-based platforms for

institutional digital assets .

Develop

Java-based

applications integrating with

L1/L2 blockchains

and smart contracts.

Design and implement

wallet infrastructure

(custodial and non-custodial).

Optimize performance, security, and compliance across blockchain integrations.

Contribute to architectural decisions and system scalability.

What You Need

5+ years

of software development experience, with strong

Java (Spring Framework)

skills.

Deep understanding of

public blockchains, DeFi, and financial services .

Strong expertise in

wallet technology, key management, and blockchain security .

Experience in

cloud environments (Azure, AWS, GCP), Kubernetes, and CI/CD pipelines .

Bonus: Knowledge of

smart contracts, Solidity, Rust, or zk-rollups .

Shape the future of institutional crypto infrastructure with cutting-edge blockchain tech!

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