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

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-cause analysis, and hotfixes. Proactively identify opportunities to improve system performance, reliability, and engineering practices. Requirements: 5+ years of commercial Node,js backend development experience. Strong hands-on experience with TypeScript. Solid experience building distributed and event-driven systems. Strong practical experience with AWS, particularly serverless services such as Lambda, SQS, API Gateway, EventBridge, DynamoDB, and S3. Experience with Infrastructure as Code, preferably Terraform and/or AWS CDK. Good understanding and practical application of software design patterns and clean architecture principles. Experience with RESTful API design and OpenAPI. Strong testing experience, including unit and integration testing. Experience working with event-driven architectures and messaging technologies such as Kafka. Strong problem-solving and analytical skills. Ability to take ownership of technical solutions and work independently. Excellent communication and collaboration skills. Fluent English. Nice to Have: Experience with monorepo setups, such as pnpm workspaces or similar. Experience with MySQL and ORM technologies such as Prisma. Experience with DynamoDB or other NoSQL databases. Previous experience in banking, fintech, payments, or other highly regulated domains. We offer*: Flexible working format - remote, office-based or flexible A competitive salary and good compensation package Personalized career growth Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) Active tech communities with regular knowledge sharing Education reimbursement Memorable anniversary presents Corporate events and team buildings Other location-specific benefits not applicable for freelancers … mais Sobre a empresa N-iX 168.274 seguidores Seguindo Atividades dos serviços de tecnologia da informação • 1001-5000 funcionários • 2.273 no LinkedIn N-iX is a global technology partner for Pragmatic AI Software Engineering, the practice of measuring what AI tools actually deliver on your codebase with your engineers before scaling them. With over 2,400 engineers across Europe, the Americas, and APAC, we work with Fortune 500 companies and enterprise technology leaders across finance, manufacturing, supply chain, and retail. For over two decades, we have built and measured software that runs in production. Our services cover software engineering, AI consulting and implementation, cloud migration and managed services, data platform engineering, application modernization, and cybersecurity. We hold AWS Premier Tier Services Partner status and AWS AI Services Competency, and maintain an established, certified partner ecosystem with Microsoft, Google Cloud, Palantir, Snowflake, and SAP. … mais Tem interesse em trabalhar conosco no futuro? Os usuários que compartilham ter interesse em uma empresa podem ter o dobro de chances de receber mensagem de um recrutador. Saiba mais Tenho interesse Exibir mais