Mid Level Backend Developer | Node.js
Core
Build and evolve backend applications and microservices for a leading Latin American fintech payment processor.
Role type
Mid-level backend developer (Node.js)
Builds
Payment gateways, transaction processing, fraud prevention, and financial services for retail, food & beverage, health, and tourism sectors.
Domain
Fintech / Payments / High-volume transactional systems
Deliverable
production ML models | product features
Required skills
Node.js, JavaScript/TypeScript, MongoDB, REST APIs, Microservices architecture, Async messaging (Azure Service Bus, RabbitMQ, Kafka), Clean Code/SOLID, Git, Docker, CI/CD, Observability
Preferred skills
TypeScript, High-volume transactional apps, Automated testing, SQL, Cloud (AWS/Azure/GCP), Caching/Resilience/Scalability, Financial sector experience
Technologies
Node.js, MongoDB, Azure Service Bus, RabbitMQ, Kafka, Docker, Git, AWS, Azure, GCP
Responsibilities
Develop and evolve microservices; Model data and manage MongoDB indexes/queries; Build REST APIs and system integrations; Implement async messaging and event-driven architectures; Troubleshoot production incidents; Ensure code quality via testing and code reviews; Monitor post-deployment behavior.
Seniority
Mid-level, hands-on IC