Senior Node.js Backend Engineer (Core Banking Services team)

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Description

We are looking for a Senior Backend Engineer to join the Core Banking Services team and help build and scale a high-performance Banking-as-a-Service (BaaS) platform. The team develops secure, highly available backend services that enable internal products and partner banks to manage customers, accounts, and core banking processes. You will work on distributed systems supporting critical financial operations, with a strong focus on scalability, reliability, security, and clean architecture. Responsibilities Design, develop, and maintain scalable backend services using Node.js and TypeScript. Build and maintain REST APIs and event-driven services within a serverless AWS architecture. Work with AWS services such as Lambda, SQS, API Gateway, EventBridge, DynamoDB, and S3. Contribute to the design and evolution of distributed systems supporting core banking processes. Take part in architectural and technical decisions, solution design, and technical documentation. Collaborate with other engineering teams and external partners to define and manage system integrations and dependencies. Develop reliable and well-tested solutions, covering unit, integration, and system testing. Work with Infrastructure as Code and contribute to improving CI/CD pipelines and development processes. Participate in threat modeling and contribute to building secure and resilient services. Take ownership of production reliability, including participation in an on-call rotation, incident investigation, root

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