Backend Developer Node.js

Key Responsibilities

• Build and maintain backend systems that securely, accurately, and reliably manage digital wallets, process payments, and record transactions, ensuring smooth and safe financial operations for users
• Design and build secure APIs that safely process large financial transactions and ensure the integrity, accuracy, and auditability of financial data and balances across systems and users
• Implement systems that verify user identities (KYC), prevent fraud (AML), enforce compliance rules, and maintain detailed audit logs for secure and regulated financial operations
• Ensure backend systems are reliable, recover from failures, and handle repeated transactions safely, preventing duplicates and maintaining consistent, fault-tolerant operations
• Connect backend systems with banks, card issuers, payment processors, and custody providers to enable smooth, secure, and reliable financial transactions and asset management
• Review team code and ensure secure, high-quality engineering by providing feedback, enforcing best practices, and promoting maintainable, reliable, and well-tested software development
• Implement logging, monitoring, and alerts for financial events, collaborating with product, compliance, and infrastructure teams to ensure secure, reliable, and regulation-compliant system features

Requirements

• Bachelor’s degree in IT, Computer Science, or related field
• 3+ years of experience building backend systems in fintech, payments, or high-security environments
• Strong knowledge of PostgreSQL, ACID principles, and financial data modeling
• Familiarity with Docker and cloud platforms (AWS, etc) and knowledge of compliance frameworks  (KYC, AML )
• Understanding of transaction management, idempotency, and data consistency
• Solid communication and organizational skills, including attention to detail, problem-solving, and team collaboration