Backend Engineer - Wallets

About the role

We are looking for a Backend Engineer specialized in wallet infrastructure to help shape the future of decentralized finance. You will design, build, and maintain high‑performance backend services that enable secure digital asset operations for a global user base.

Key responsibilities

• Design, develop and maintain robust backend services for wallet infrastructure and digital asset operations.
• Build and optimise micro‑services capable of handling large‑scale real‑time transactions.
• Collaborate with cross‑functional engineering teams to deliver innovative backend solutions.
• Implement and uphold the highest security standards to protect user assets and system integrity.
• Contribute to architectural decisions and improve system reliability, scalability and maintainability.
• Work with databases and distributed systems to ensure efficient data storage and synchronization.
• Investigate, troubleshoot and resolve performance issues while identifying optimisation opportunities.

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 new technologies and adapt to evolving technical environments.
• Excellent communication and collaboration skills within remote, international teams.

Required skills

• Node.js
• JavaScript
• Microservices architecture
• Distributed systems
• Peer‑to‑peer technologies
• Decentralized systems
• MySQL
• MongoDB