Senior Backend Developer - Node.js

Role overview

Senior Backend Developer (Node.js) for a partner company in the United States. Join a remote-first, high-performing engineering environment building secure, scalable, high-availability backend services for large-scale digital financial products.

Responsibilities

• Design, build, and maintain backend services using Node.js and JavaScript for high-traffic production systems
• Develop new platform features using Agile practices with a focus on speed, reliability, and user experience
• Improve scalability and performance of real-time services, APIs, and core backend infrastructure
• Build and optimize microservices-based architectures for modular growth
• Enforce strong security standards across backend systems, APIs, authentication flows, and internal processes
• Integrate and optimize data stores such as MySQL and MongoDB while maintaining data integrity
• Monitor systems, troubleshoot production issues, and continuously improve service reliability
• Collaborate with cross-functional teams to deliver solutions aligned with product goals

Requirements

• Strong professional experience in backend development with Node.js and JavaScript
• Experience with complex platforms, including large-scale and/or real-time architectures
• Solid understanding of microservices and distributed systems
• Hands-on experience with MySQL, MongoDB, or similar databases
• Strong knowledge of backend security best practices and secure coding standards
• Ability to quickly learn new tools, frameworks, and emerging technologies

Nice to have

• Experience with Redis, caching layers, job queues, or message queue systems
• Exposure to blockchain integrations or high-availability systems
• Additional experience with Ruby, Rust, or C++

Location / work model

• Fully remote and flexible work environment (posted for the United States).