Mid-Level Blockchain Engineer (Java, Public Blockchain, Wallets)
📍 London | 💰 Up to £140,000 + 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!
