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