Senior Node.js Engineer - BFF & Microservices Lead

Avenga; Buenos Aires; Híbrido; ARS 900.000 - 1.300.000; Jornada completa

Descripción de la vacante

Avenga is seeking a Senior Node.js Engineer in Buenos Aires to lead backend development for BFF services and microservice-based systems. You will design, build, and maintain scalable, reliable services, collaborating with product and frontend teams.

The role covers the full SDLC from scoping and prototyping to deployment and support. 5+ years with Node.js, NestJS/Express, REST, NoSQL, and cloud/IaC are required; Spanish native and English intermediate preferred.

Formación

• 5+ years with Node.js (v18+); experience building BFF/back-end services with NestJS or Express.
• Strong RESTful API design and NoSQL integration.
• Experience with microservices and event-driven/asynchronous architectures.
• Cloud deployment and management experience; familiarity with Serverless Framework or IaC tools.
• Proficient with GitLab workflows and setting up monitoring/alerting (e.g., Datadog, OpsGenie).
• Solid technical scoping, requirements translation, and full SDLC ownership.
• Excellent collaboration and communication; works closely with TL and PO to meet deadlines.
• Languages: Spanish (native), English (intermediate).
• Location: Buenos Aires (CABA or AMBA).
• Nice-to-have: AWS serverless, TypeScript, React, Agile SDLC.

Responsabilidades

• Design and maintain BFF and backend services with Node.js (18+) and NestJS.
• Build and document versioned RESTful APIs; integrate within microservices and event-driven systems.
• Translate requirements into prototypes and production-ready technical solutions.
• Ensure code quality: unit tests, code reviews, and defect fixes.
• Deploy and manage cloud applications using IaC or Serverless approaches; ensure production reliability with monitoring, alerting, and incident response.
• Improve performance, scalability, and availability.
• Maintain functional, architectural, and in-code documentation.
• Collaborate with frontend, product, and tech leads; support team OKRs and mentor juniors.

Conocimientos

Node.js

NestJS or Express

RESTful API design

NoSQL integration

Microservices

Event-driven architectures

Cloud deployment / IaC

GitLab workflows

Monitoring (Datadog / OpsGenie)

SDLC ownership

Collaboration / communication

English (intermediate)

Herramientas

AWS serverless

TypeScript

React

Agile SDLC

Descripción del empleo

Avenga is seeking a Senior Node.js Engineer in Buenos Aires to lead backend development for BFF services and microservice-based systems. You will design, build, and maintain scalable, reliable services, collaborating with product and frontend teams.

The role covers the full SDLC from scoping and prototyping to deployment and support. 5+ years with Node.js, NestJS/Express, REST, NoSQL, and cloud/IaC are required; Spanish native and English intermediate preferred.