Backend Engineer - Wallets

About the role

We are looking for a Backend Engineer focused on wallet infrastructure to help shape the future of decentralized finance. You will build secure, scalable, and high‑performance backend services that power global digital‑asset solutions and support real‑time transactions.

Key responsibilities

• Design, develop, and maintain robust backend services for wallet infrastructure and digital‑asset operations.
• Build and optimise high‑performance microservices capable of handling large‑scale real‑time transactions.
• Collaborate with cross‑functional engineering teams to deliver innovative backend solutions aligned with product and business needs.
• Implement best‑practice security measures to protect user assets, sensitive data, and system integrity.
• Contribute to architectural decisions and continuously improve reliability, scalability, and maintainability.
• Work with databases and distributed systems to ensure efficient data storage, retrieval, and synchronization.
• Investigate, troubleshoot, and resolve performance issues while identifying optimisation opportunities.
• Stay current with emerging blockchain, peer‑to‑peer, and backend development technologies.

Required profile

• Strong professional experience with Node.js and JavaScript backend development.
• Solid understanding of microservices architecture and scalable distributed systems.
• Experience building and maintaining high‑availability backend platforms.
• Familiarity with peer‑to‑peer technologies and decentralized systems.
• Proficiency with databases such as MySQL and MongoDB.
• Strong understanding of backend security principles and secure coding practices.
• Ability to quickly learn and adapt to new technologies, frameworks, and environments.
• Excellent communication and collaboration skills within remote and international teams.
• Experience in Agile development environments is a plus.

Required skills

• Node.js
• JavaScript
• Microservices architecture
• Distributed systems
• Peer‑to‑peer technologies
• Decentralized systems
• MySQL
• MongoDB
• Backend security
• Secure coding practices